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    Page 1 | MAPAL Impulse

    400 visitors to

    the 3rd MAPALdialogue

    Trochoidal milling

    fitness program for themilling machine

    Optimisation in

    dialysis machinemanufacture

    MQL technology:Resource-saving and energy-efficient

    Information, Ideas, Internals No. 51 | June 2013

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    Page 2 | MAPAL Impulse

    Building on a good market

    position with new innovations.

    EDITORIAL

    Dear reader, dear business associate,

    After a very positive business year 2012

    during which we were able to record

    growth of around 10 %, we are cau-

    tiously looking forward to 2013 with

    optimism despite the widely reported

    increasing sense of crisis. What is the

    reason for our generally positive mood?

    On the one hand MAPAL is out infront with the market leaders in many

    product areas, in particular fine machi-

    ning, on the other hand we have a very

    broad base with our comprehensive

    product range and can better compen-

    sate for fluctuations in some sectors.

    With our international production and

    sales network in 21 countries we can

    also offer a high degree of customer

    proximity and can react flexibly to

    varying market requirements. Last but

    not least, as a family business we areindependent of external investors and

    possible short-term shifts in strategy;

    we are therefore dependable as a long-

    term partner for our customers. All of

    these factors, combined with the high

    level of skill and ability of our em-

    ployees, are essential prerequisites for

    maintaining and further expanding our

    good market position with continuous

    innovations.

    MAPAL technology has therefore been

    the center of attention at many inter-

    national trade fairs and congresses. The

    possibilities offered by MAPAL system

    solutions and indeed also by our high

    performance standard products for

    drilling, milling, reaming and turning

    are of great benefit for the customer.

    Recently our development engineers

    developed a new tool for trochoidal

    milling; this tool is of unrivalled per-

    formance. The result is shorter machi-

    ning times, better tool utilisation, as

    well as noticeably lower tool wear. Incombination with the new hydraulic

    chuck, High TorqueChuck, which can

    withstand temperatures up to 170 C,

    milling becomes highly efficient in all

    aspects.

    With MQL technology we offer a fully

    mature product range for the machi-

    ning process with minimum quantity

    lubrication; this technology is taking

    on an increased sense of importance

    given the current situation of ever in-creasing energy prices. Many customers

    use this technology, on the one hand to

    save around 30 % of the energy costs

    and to reduce the coolant consumption

    to a minimum, however on the other

    hand also to reduce the impact on the

    environment and to create better wor-

    king conditions for staff.

    During all MAPAL development work

    the maxims of cost-effectiveness,

    energy-efficiency and conservation of

    resources are in the foreground to give

    our customers a technological lead and

    to make possible sustainable produc-

    tion.

    Have a good read

    Yours, Dr. Dieter Kress

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    Page 3 | MAPAL Impulse

    CONTENTS

    MAPAL at CIMT in Beijing and Turning

    Days in Villingen-Schwenningen

    MAPAL addressed the increasing

    demand for energy-efficient, resource-saving precision tools and machining

    methods during its successful ap-

    pearance at CIMT in Beijing. It was

    possible to make many new customer

    contacts. Along with the product in-

    novations, the ReTooling service, that

    is the re-tooling of existing machines

    for new parts, was a hot topic for

    our specialists. With a good 175,000

    visitors, CIMT is the largest show for

    metal machining in China.

    MAPAL also attended the trade fair

    Turning Days in Villingen-Schwen-

    ningen and was able to successfully

    demonstrate its competence in the

    area of tools for lathes and clampingtools. HSK-T, Versacut hard turning as

    well as MAPAL conversions for lathes

    to HSK-T were the focus of interest of

    the numerous visitors to the fair.

    MAPAL has a new

    Head of Marketing

    and Corporate Com-

    munications

    Since February 2013

    Andreas Enzenbach (47)has been responsib-le for internationalproduct marketing as

    well as internal and external communication.Enzenbach has many years of experience ininternational capital goods marketing in the

    mechanical engineering and systems enginee-ring sectors and is a specialist for communica-

    tion strategies.

    Armin Kasper new

    Regional Sales Di-

    rector for China andTaiwan

    Since April 2013

    Armin Kasper has beenthe MAPAL GroupsRegional Sales Director

    responsible for theimportant growth

    regions of China and Taiwan. As a long-serving

    sales manager from MAPAL WWS, a specialistfor PCD tools and key account manager, Kasper

    has extensive expert knowledge and experiencein international sales. He will therefore be ableto provide very significant support to our sales

    company MAPAL China on the sale of our tools.

    News

    MAPAL at international trade fairs

    News from the MAPAL Group

    NEWSTICKER

    MAPAL Group News from the MAPAL Group Page 3

    MAPAL dialogue: successful customer days Page 8

    Product Highlights Solid carbide TTD offer: yes, I will. Page 6

    Hybrid Tools Page 7

    Trochoidal milling Page 10

    PCD tools with lasered cutting edges Page 12

    MAPAL setting fixture UNISET Page 16

    Reports from practicet Fresenius Medical Care: custom-made tool solutions Page 18 MAPAL Poland: LFP water pump housing Page 20

    MAPAL and Ford: optimal processes Page 22

    Imprint Page 24

    175,000 visitors to CIMT in Beijing. Turning and clamping areas in the spotlight:

    Turning Days in Villingen-Schwenningen.

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    Page 4 | MAPAL Impulse

    Producing greater added value with lower energy usage by increasing

    the energy efficiency of production processes.

    News topics from the MAPAL Group

    3D view of the newly planned company

    headquarters MAPAL C&S in the Czech Republic.

    New building for MAPAL C&S

    The construction work on the new

    headquarters of MAPAL C&S s.r.o in

    the Czech city of Mlada Boleslav, near

    Prague, started in May. Our current

    building is too small for further deve-

    lopment, says Petr Pokorny, General

    Manager of the subsidiary in the

    Czech Republic. The production faci-

    lities of the automotive manufacturer

    SKODA are also nearby. The new buil-

    ding for MAPAL C&S includes a two-

    floor administration area and a 1,000

    square metre production building. The

    result is a significant increase in capa-

    city for the manufacture of PCD tools

    and re-grinding solid carbide tools.

    MAPAL is investing around 1.2 milli-on euros in this project, which is to be

    completed by the end of the year.

    In touch with the latest trends with

    MAPAL

    Improved drilling processes for solid

    carbide drills, MAPAL tangential tech-

    nology and universal high-pressure

    chucks were the key topics at the 8th

    Amberg tool seminar. In recent years

    the seminar in Oberpfalz has become

    established as an important specialist

    forum for industrial users. Around

    120 participants from all sectors of

    the metal machining industry along

    with graduates and scientists listened

    to the presentations given by MA-

    PAL speakers and saw for themselves

    the practical implementation of the

    information presented during demons-

    trations. Intensive use was also madeof the opportunity to chat personally

    to our experts.

    Tool applications are continuously chan-ging. An edge in terms of knowledge willsecure competitive advantages. Seminars,workshops, forums or conferences offerinformation first hand. The experts fromMAPAL regularly attend a large numberof seminar events. In exciting presenta-tions they convey new know-how anddepict the latest trends and develop-ments in tool technology.

    You will find an overview of the up-coming seminars and events in whichMAPAL will take part on our homepage atwww.mapal.com/aktuel-les/fachvortrae-ge. The list is continuously updated.

    Conversions for lathes offer higheraccuracy with increased productivity

    In 2008 HSK-T was standardised

    specially for the usage of upright

    tools on lathes. It features high chan-

    geover and repetition accuracy, high

    fitting accuracy, high rigidity, as well

    as exact radial positioning accuracy.

    The greatest advantage of HSK-T

    compared to existing systems is

    the very quick, straightforward tool

    change. While with the standardisedconnections used in the past, 10 to

    15 minutes were often necessary for

    the tool change, with HSK-T the time

    required is reduced to less than 30

    seconds.

    Paired with very high change-over

    accuracy, there is a significant reduc-

    tion in the machine downtimes and

    as a result a significant increase in

    productivity for the user. Along with

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    Page 5 | MAPAL Impulse

    complete conversion, it is also possible

    to partially convert existing revolvers.

    On stations with frequent tool chan-

    ges, conversion to HSK-T is particu-

    larly advantageous, as the investment

    is manageable and pays for itself in

    a short time. MAPAL offers conversi-

    ons from all common connections on

    lathes to HSK-T, across machines and

    independent of manufacturer, as well

    as a wide range of turning holders.

    News

    New building at MAPAL C&S in the Czech Republic

    Increasing productivity with HSK-T

    Technology report 2 on the topic of energy efficiency

    TECHNOLOGY

    REP RT

    2nd MAPAL technology report

    Which factors affect the energy con-

    sumption of the machining process and

    how can energy be saved? This is the

    issue covered in the 2nd MAPAL tech-

    nology report. Prof. Dr.-Ing. Eckehard

    Kalhfer, the Chair for Machining at

    the university in Aalen, and Dr. Jochen

    Kress, member of the senior manage-

    ment, have analysed the energy con-

    sumption of machine tools and indivi-

    dual process steps. Their report shows

    how, with only little investment, for

    instance the usage of energy-efficient

    tools and optimal machining proces-

    ses, to some extent significant energy

    savings and therefore cost savings can

    be achieved. The technology report is

    included with this issue of Impulse.

    Would you like to continue to read re-

    gularly our scientific publications? Then

    make use of our free subscription. You

    will find the registration form on our

    homepage at www.mapal.com/aktuelles/

    technologiereport/anmeldung.-.

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    Page 6 | MAPAL Impulse

    Clever changing with the replaceablehead drill TTD from MAPAL

    Replaceable head tool systems are

    now indispensable in modern produc-

    tion. Increasing raw material prices,

    lean inventories and the consideration

    of life cycle costs against the pure

    purchase price favour the usage of

    replaceable head systems. MAPAL

    has introduced on the market highly

    productive systems for all application

    areas; systems that are in no way

    inferior to monolithic tools quite

    the opposite. With a focus on highly

    precise, very stable connections it has

    been possible to limit the usage of

    expensive carbide to the tool head,

    and to make the machining stable andprecise overall.

    In the area of drilling from the solid

    MAPAL relies on the replaceable head

    drill TTD. At the center is the torque

    transfer connection TTS (Torque

    Transfer Schnittstelle) which permits

    optimal torque transfer and at the

    same time high changeover and radial

    run-out accuracies. In this way the re-

    placeable head drill TTD achieves the

    performance of a solid carbide drillwith lower costs.

    Success stories from the different sec-

    tors and workpiece materials under-

    line the performance of the replace-

    able head drill TTD. For example in

    gearbox housings made

    of GJL-200 the 28 mm

    fixing bores are drilled

    using a replaceable head

    drill TTD from MAPAL.

    It is possible to opti-

    mally meet the require-ments of the customer in

    relation to the dimensional accuracy

    of the diameter. However the TTD also

    realises significant saving potential by

    doubling the feed rate in comparison

    to the solid carbide drill used previ-

    ously. With 1,430 mm/min and 140

    m/min cutting speed, 200 bores can be

    reliably machined using a replaceable

    drill head.

    In an application from steel machi-

    ning, clamps for folding machines

    made of ST52 are drilled using the

    replaceable head drill TTD.

    83 bores with a diameter of 20 mm

    and a length of 106 mm are required

    per part. By using the MAPAL tool

    it was possible to reduce the machi-

    ning time from 39.7 to 18.1 seconds this corresponds to reduction in the

    machining time of 54 %. Together

    with an increase in the tool life of 77

    %, the TTD reduces the costs per bore

    by 60 % referred to the customers

    annual production volume! There are

    also examples of the successful usage

    of the replaceable head drill TTD in

    modern workpiece material combina-

    tions. For example the machining of

    bores for the connection of a ships

    CFRP drive shaft to a steel hub. Usinga combination tool from MAPAL

    with a TTD solid drilling stage and a

    countersink step with PCD-tipped ISO

    indexable inserts it was possible to

    reduce the machining time by more

    than 80 %.

    Increasing raw material prices, lean inventories and the consideration

    of life cycle costs favour replaceable head systems.

    Highlights from the product areas

    Simply scan the QR code or go towww.mapal.com/aktion

    *Valid on ordering a TTD replaceable head with tool holder.You will find the full terms and conditions of the offer at www.mapal.com/aktion

    Test the MAPAL replaceablehead drill TTD and exploit theperformance of a solid carbidedrill with lower costs.

    TO CHANGE

    without risk. Producequickly and effi ciently

    using the replaceable headdrill TTD.**

    YES

    ,IWILL

    YES, I WILLThe current MAPAL replaceable head drill TTD cam-paign will continue until the end of June. You willfind more information on this topic on our homepagewww.mapal.com

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    Page 7 | MAPAL Impulse

    Pre-machining and fine machining

    intelligently combined

    Custom-made combination tools

    open up high potential for increasing

    productivity and process reliability. In

    the specific case of a MAPAL custo-

    mer, it was necessary to pre-machine

    and fine machine particularly cost-

    effectively two connection bores with

    diameters of 31 mm and 36 mm on an

    AlSiMg1 swivel bearing for a car. This

    requirement sets two challenges for

    the tool design. Firstly, the low silicon

    content of the aluminium alloy requi-

    res an innovative tool concept that

    ensures optimal chip breaking of the

    otherwise long continuous chips. On

    the other hand, to meet the cycle timerequirements, particularly productive

    pre-machining and fine machining

    are required as both diameters require

    high stock removal.

    To solve this task, MAPAL developed

    two combination tools that combine

    both the pre-machining and fine ma-

    chining on one tool body.

    The pre-machining was designed on

    both tools as a solid drilling sta-

    ge with replaceable ISO indexable

    inserts. The appropriate cutting edge

    geometry, as well as twisted and also

    polished chip spaces with a helix ang-

    le of 15 ensure reliable chip breaking

    and chip removal. Due to the large

    core cross-section of the solid drilling

    stage, the tools are stable and par-

    ticularly smooth in operation. After

    the solid drilling stage, the stages for

    fine machining follow with the brazed

    PCD cutting edges. During process

    design, the machining operations

    were optimally distributed over the

    two tools.

    First tool one (see figure) is used todrill the large diameter using the

    indexable inserts. Then the next

    stage machines a spot face on the

    end of the bore using the related

    chamfers. Using tool two, the

    small diameter is drilled in the

    solid and then fine machined and

    chamfered using the following

    stages. Then the chamfer on the

    bore outlet is made using this

    tool by circulating. The same tool

    then moves to the larger diameter,

    fine machines the bore and also pro-

    duces the chamfer of the exit of this

    bore by circulating.

    MAPAL specialists have achieved

    maximum productivity and cost-

    effectiveness in this machining task

    both in the process design and the

    tool design. The two combination

    tools complete all the machining

    tasks for which at least four tools

    would normally be required. Also

    the MAPAL hybrid tools combine the

    different machining systems in such

    a manner that excellent performance,

    simple handling and cost-effective

    reconditioning are achieved.

    News

    Yes, I will to change without risk

    Intelligent combination of machining systems

    Pre-machining and fine machi-

    ning intelligently combined

    MAPAL hybrid tools combine different tool tech-

    nologies

    1

    2

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    Page 8 | MAPAL Impulse

    Erfolgreiche Kundentage bei MAPAL

    Minimum quantity lubrication was the

    topic of the customer days at MAPAL

    this year. Around 400 participants

    came to Aalen, above all series pro-

    duction manufacturers and suppliers

    to the automotive industry; they came

    to obtain information on this envi-

    ronment-friendly and energy-saving

    form of material machining. By means

    of the minimum quantity technology,

    up to 80 % less coolant and up to 40

    % less electrical power is consumed in

    comparison to conventional processes.

    At the end of the two-day event the

    participants were impressed by the

    diverse mix of broadly based presen-

    tations, practical tool demonstrations,

    a large exhibition of MQL compo-

    nents, as well as the tours through theMAPAL production buildings.

    Dr. Dieter Kress was pleased by the

    unexpectedly large number of visitors

    who travelled from all over Germa-

    ny, Austria, Poland and Switzerland:

    With minimum quantity lubrication

    we have selected the right topic, he

    concluded. Minimum quantity lubri-

    cation (MQL) is in principle nothing

    new. The first bores were dry ma-

    chined some 20 years ago. However,

    the keen interest shows that MQL is

    a very complex system. One, as Dr.

    Jochen Kress added, in which there

    has been significant progress in re-

    cent years: We are now at the point

    that we can also use MQL technolo-

    gy on broad front. The increasing

    industrial interest in energy-efficient

    production is giving MQL technology

    additional lift: It is a comparatively

    simple way to save energy, says Dr.

    Jochen Kress.

    And businesses will increasingly

    exploit energy-saving potential in

    the future to lower their costs for

    energy and resources such as waterand material, stated also Prof. Dr.

    Ing. Eckehard Kalhfer. The Chair

    for Machining at the university in

    Aalen has investigated the effect

    of MQL on energy efficiency. The

    basic annual consumption of an

    operational machine tool is around

    66,000 kWh. On the usage of central

    cooling lubricant systems, states

    Prof. Kalhfer, the energy demand

    innovative technologies in use

    MAPAL Di LOG

    400 visitors on 10 and 11 April 2013

    P R E S E N T A T I O N S | D E M O N S T R A T I O N S | I N - H O U S E

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    Page 9 | MAPAL Impulse

    is high compared to the energy

    demand of the machining process

    itself. Using various model invoices

    he demonstrated that the electri-

    city consumption can by reduced

    by up to 40 % by using minimum

    quantity lubrication. In this way it

    is possible to save a lot of money,

    the scientist stated.

    However MQL technology requi-

    res careful usage, says Dr. Jochen

    Kress. All components, that is the

    tool, machine, fixture and above

    all the process must mesh opti-

    mally. Two acknowledged MAPAL

    specialists, Christian Schmidt and

    Joachim Vaas, provided informati-

    on on the special features of MQLtools and correct process design

    in relation to lubrication, trans-

    port of chips and cooling. Suitable

    chucks were presented by Michael

    Neumann: MAPAL has developed a

    modular system for clamping tools.

    We accompany the customer

    during the entire process design,

    from planning, through pilot trials, to

    production, Dr. Jochen Kress descri-

    bes the product and service portfolio.

    MAPAL has a large array of machine-

    ry for tests and optimisation and has

    extensive experience with all materi-

    als. Even demanding processes such

    as connecting rod machining can be

    implemented using MQL.

    Peter Vogl, Director of Design & Tech-

    nology at GROB Werke GmbH & Co.

    KG in Mindelheim and Werner Roth,

    Head of Application Engineering at

    Maschinenfabrik Heller, Nuertingen

    reported on how machine tools suita-

    ble for MQL should be designed. The

    manufacturers of machining centers,

    custom machines and transfer lines

    have already realised numerous MQLprojects together with MAPAL.

    Currently around one in five of the

    machines supplied by the business

    have MQL technology says Roth. Vogl

    spoke a slightly increasing tendency

    in large-scale series production manu-

    facturing. The machines are designed

    such that lubricant can be supplied

    X H I B I T I O N | E X P E R I E N C E | E X C H A N G E O F V I E W S

    Continued on next page.

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    Page 10 | MAPAL ImpulsePage 10 | MAPAL Impulse

    through the tool as well as by means

    of single-channel or dual-channel

    systems.

    Dr. Dirk Sellmer, Head of the Re-

    search and Development department

    at MAPAL gave an overview of the

    different MQL feed units. Whether you

    select a single or dual-channel variant

    is essentially a question of philosophy

    the expert stated. The same applies

    to the choice of the right lubricant, a

    topic that is also the subject of fre-

    quent discussion. Fatty alcohols and

    ester oils are not equally suitable as

    lubricants in his opinion. It depends

    on the application. Aerosols are not

    flammable, however chip dust in com-

    bination with wall oil could cause anexplosion. Modern extraction systems

    prevent this situation from occurring.

    Marcus Krauss, Sales Manager at Kel-

    ler Lufttechnik, Kirchheim unter Teck,

    is observing a trend toward small,

    decentral systems. The advantages:

    They need little space, can be used

    flexibly and can be controlled direct-

    ly via the machine tool. Ford, for

    example, uses an individual separator

    to blow the return air back into the

    room.

    The report from a user of MQL

    technology was equally exciting

    and informative for many partici-

    pants to the MAPAL customer days.

    At Punch Powerglide, Strasbourg,

    around 300,000 gearboxes for cars are

    manufactured per year, for this reason

    around two years ago it was decided

    to change to minimum quantity lubri-

    cation for the production of converter

    housings. Good environment manage-

    ment and cost savings were the key

    reasons explained planning manager

    Roland Muller. Initially we had a

    few problems with tool breakages and

    noise, but it was possible to address

    these issues quickly. It was possible

    to reduce the cycle time using MQL,

    the surrounding area is clean and

    attitudes are positive. Mullers conclu-

    sion: I am convinced we did the right

    thing.

    P R E S E N T A T I O N S | D E M O N S T R A T I O N S | I N - H O U S E

    innovative technologies in use

    MAPAL Di LOG

    The development of MQL system components is sufficiently advan-

    ced that this technology can now be used on a broad front.

    CONTINUEDFROMPAGE5.

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    Page 11 | MAPAL ImpulsePage 11 | MAPAL Impulse

    Andreas Bro (Gebr. HellerMaschinenfabrik GmbH, Nuertingen):

    There has been a lot of

    information provided in a very

    short time.

    Olaf Kiener (Julius Schle DruckgussGmbH, Schwaebisch Gmuend):

    It was a perfect event that

    has exceeded my expecta-

    tions.

    Wolfgang Mller (Opel, Kaiserslautern):

    A very good mix of theory and practice. It

    was a great event because a large number of

    external manufacturers were also present.

    Michael Zinz (Deutz AG, Ulm):

    The presentations were informative, the

    works tour and the exhibition very interes-

    ting. We are satisfied all round.

    X H I B I T I O N | E X P E R I E N C E | E X C H A N G E O F V I E W S

    Thank you for the feedback on this event you will also find a summary of the customer days online atwww.mapal.com/aktuelles/kundentage-mapal-dialog/

    Your MAPAL Impulse editorial team

    Alexander Koch (Schunk GmbH Et Co. KG,Lauffen am Neckar):

    The dialogue was very well organised, inte-

    resting and varied. I have learnt a lot aboutMQL technology.

    Interviews

    with visitors

    Fit for manufacturing processes

    with minimum quantity lubrication

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    Page 12 | MAPAL Impulse

    Fitness program for the CNC milling machine

    With trochoidal milling significant

    improvements in tool costs, clamping

    systems, machining times and the load

    on the machine components can be

    achieved in many applications compa-

    red to conventional milling.

    A comparison of the cutting data

    determined during a MAPAL milling

    trial already shows what is possi-

    ble with this process, which is also

    known as wave milling: while during

    the conventional dry milling of case

    hardened steel (16MnCr5) a cutting

    speed of around 200 m/min at a feed

    of 0.05 mm/tooth was achieved, it was

    possible to tackle the same task with a

    cutting speed of 600 m/min at double

    the feed rate using the new trochoidalcarbide milling cutter from MAPAL.

    Even on machining V2A steel it was

    possible to achieve a significant incre-

    ase in speed by changing the milling

    technology: at a feed of 0.05 mm/

    tooth, a cutting speed of 250 m/min

    was achieved instead of the 60 to 100

    m/min otherwise possible.

    This performance increase is made

    possible by a combination of high

    performance milling cutters speciallydeveloped by MAPAL for this process,

    the HighTorque Chuck (HTC) and the

    actual process. The advantage during

    movement is essentially the reduced

    tool contact. While during conventio-

    nal milling of a slot the wrap angle is

    180 (full cut), with trochoidal milling

    it can be selected as a function of the

    cutting depth and limited to maxi-

    mum 70. This situation is made pos-

    sible by a milling cutter with a smaller

    diameter that moves trochoidally at a

    high spindle speed; each trochoid is

    deeper into the cut.

    Due to the smaller wrap angle, less

    heat is produced. The machining

    forces are also lower such that even

    spindles with low power and torque

    are suitable for the machining process.

    In addition, the chip load is lower

    with trochoidal milling. As the milling

    cutter does not completely fill the

    slot or pocket, chip congestion and

    renewed cutting of chips is as good

    as excluded. This aspect is of impor-

    tance particularly for slots that are

    deep in relation to their width. During

    conventional milling, low feeds and

    cutting depths are used here due to

    the problems described. A maximummilling depth of 1.5 x D is normal.

    Not so with trochoidal milling: by

    avoiding the full cut, cutting depths

    of up to 2 x D are achievable even

    without specially developed milling

    cutters.

    For the user, this situation sig-

    nifies shorter machining times,

    better tool utilisation and

    noticeably lower tool wear.

    Due to the rapidly increasingcarbide prices, the latter in

    particular is attracting the

    attention of metal machi-

    nists who can profit twice

    over on changing to trocho-

    idal milling: from the longer

    tool lives and from the

    lower procurement costs for

    the milling cutter resulting

    from the smaller diameters.

    If trochoidal milling is used in

    machining centers, additional cost

    savings are possible. Because widely

    varying slot widths or pocket sizes

    can be produced with only one tool,

    the tool needs to be changed less

    frequently and there is space left in

    the tool magazine. Trochoidal milling

    also offers advantages in relation to

    design. Due to the lower radial forces,

    significantly more delicate parts and

    parts significantly with thinner walls

    can be realised and greater accuracies

    achieved. At the same time the load

    on the spindle bearings is eased and

    the tool life is increased.

    The OptiMill product family from

    MAPAL includesmilling

    cut-

    Trochoidal milling also for machining centers

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    Page 13 | MAPAL Impulse13 | MAPAL Impulse

    Customer benefits

    Shorter machining time and better tool utilisation

    Higher cutting volumes and feeds

    ters suitable for dry trochoidal milling

    with DIN shank lengths 2 x D. For

    applications with even higher requi-

    rements, MAPAL has now developed

    and added to the product range an

    entirely new milling cutter with a

    cutting length of 3 x D and a diameter

    from 6 to 20 mm. Specially designed

    unequal spacing (EU spacing) of the

    five cutting edges combined with an

    innovative geometrical design of the

    cutting wedge reduces the excitation

    of vibration here. Balancing (balan-

    cing quality 2.5) undertaken during

    the manufacturing process further

    reduces the risk of vibration. As such

    the patent-applied milling cutter

    can even be used at extremely high

    spindle speeds without problems. Sothat with the greater cutting depths

    now possible, jamming does not occur

    due to the long chips produced in

    the process, the tool designers have

    also integrated a chip breaker that

    cuts the chips in half. This feature

    safeguards the trouble-free removal

    of the chips from the machine com-

    partment. A special tool adapter is not

    required for trochoidal milling using

    the MAPAL milling cutters. However,

    if the potential of trochoidal milling

    and the new milling cutter is to be

    fully exploited, it is recommended to

    use the new MAPAL HTC chuck. The

    chuck combines the very good dam-

    ping properties of hydraulic chucking

    technology with the high holding

    forces of shrinking technology. The

    HTC reliably transmits high torques.Even heating to 170 does not affect

    the HTC chuck, as milling trials have

    confirmed. As a rule, cooling is there-

    fore not necessary.

    Smaller or more delicate parts, higher

    accuracies and the continuing pres-

    sure to further reduce tool, operating

    and maintenance costs are making the

    call for more efficient milling proces-

    ses louder. Thanks to the availability

    of more powerful tools such as the

    new MAPAL trochoidal milling cutters

    and the increasing usage of powerful

    CNC controllers and CAM software,

    there is now nothing to hinder the

    broad usage of the trochoidal milling

    process. The time is right for trochoi-

    dal milling!

    MAPAL OptiMill milling

    cutter in use.

    Figure on right: Trochoidal

    milling cutter clamped in

    the MAPAL High-Torque

    Chuck.

    Your contact person for further information:

    Andreas Rinn | [email protected]

    ae

    fz

    Feed motion

    r1

    Machining area per

    trochoid.

    Chip per cutting

    edge.

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    Page 14 | MAPAL Impulse

    Innovative manufacturing technology for external machining tools:

    PCD tools with lasered cutting edges

    Productivity and quality significantly increased

    The competence center for PCD tools

    in the MAPAL Group, MAPAL WWS

    GmbH in Pforzheim, is the largest

    and most technologically advanced

    production facility for PCD tools

    in the world. In collaboration with

    LASERPLUSS AG, also part of the

    MAPAL Group, (see box on the right),

    another significant development has

    been achieved on the production side:

    by using RayCutter 5-axis CNC laser

    machines for laser finishing PCD

    cutting edges, it has been possible to

    significantly increase the stability and

    with it the productivity and quali-

    ty of complex external machining

    tools. The engineers in Pforzheim are

    impressed with the new technolo-

    gy and are expanding the capacity.The RayCutters have been used in

    production for around three years. The

    development of the new machining

    method for external machining tools

    started in 2011, and the process was

    very successfully introduced in 2012.

    By the middle of 2013, five RayCut-

    ters were in use in the production of

    PCD tool cutting edges.

    Machining of a hose connection tho-

    roughly revised

    In one application, production of

    a complex external contour on a

    hose connection made of AlSi7 was

    thoroughly optimised by MAPAL. The

    part is manufactured on a four-spindle

    machining center in high quantities,

    absolute process reliability and the

    high quality of the surfaces machined

    in relation to dimensional accuracy

    and surface finish must therefore

    be ensured. The complete external

    contour must also be produced in

    one machining cycle. The customer

    was dissatisfied with the part quality

    produced by the previous process. The

    machined area had a poor surface fi-

    nish with clearly visible chatter marks.

    Also, the dimensional accuracy varied

    between the four spindles, an aspect

    that made it more difficult to meet the

    tolerances.

    The tool used originally comprised

    screw-mounted inserts and was corre-

    spondingly unstable. It was necessary

    to adjust the delicate inserts individu-

    ally and there was a tendency for the

    adjustment to change during machi-

    ning. This situation often resultedin only one of the two cutting edges

    actually cutting. At a spindle speed of

    5,000 min-1it was only possible to use

    a feed per tooth 0.1 mm.

    Lasered cutting edges maintain the

    stability of the tool

    The specialists from MAPAL designed

    a PCD external machining tool of

    monoblock design to make the machi-

    ning more stable and to improve thesmooth running. The design permits

    high accuracies in length, shape and

    diameter. However, the special high-

    light is the machining of the cutting

    edges. Unlike in the past, these cutting

    edges are lasered instead of wire

    eroded. This innovative technology

    has significant positive effects on ma-

    chining quality and productivity with

    this complex form of external ma-

    chining. To be able to wire erode the

    cutting edge contours in monoblock

    tools in the conventional manner, the

    tool body must be relieved. As a result

    the area behind the cutting edge beco-

    mes very unstable. As a consequence,

    the tool tends to vibrate; the cutting

    data must be drastically reduced in

    some cases. If the cutting edges are

    finish lasered using the new process,

    the cutting edge pocket remains stable

    and vibration is prevented. It is only

    necessary to take into account any

    tool restrictions. The improved tool

    stability therefore makes possible

    significant increases in the machi-

    ning quality and productivity as well

    as an effective two cutting edge and

    multi-cutting edge capability. Christi-

    an Molch, General Manager at MAPALWWS, says

    on this

    issue:

    This laser

    technology

    developed

    by MAPAL

    and LA-

    SERPLUSS

    is excel-

    lently sui-

    ted to theproduction

    of com-

    plex, very

    delicate

    geometries

    on external

    machining

    tools. The

    process

    operates

    withoutLASER-TECH

    N

    O

    LO

    G

    Y

    Picture from the

    cutting edge

    preparation on th

    RayCutter.

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    Page 15 | MAPAL Impulse

    physical contact and is practically

    unlimited in relation to geometry. As

    a result MAPAL is also technologically

    leading in the area of complex PCD

    external machining tools.

    Cycle time reduced by 23 %

    The potential of the new tool gene-

    ration has been confirmed in series

    production at the customer. After

    machining, the part has a very good,

    chatter-free surface finish as well as

    good geometrical accuracy, and that

    with significantly increased machi-

    ning values (n = 8,500 min-1, fz =

    0.16 mm). The customer has several

    positive effects due to the usage of

    the MAPAL PCD external machining

    tool. It saves handling costs, as com-

    plicated and time-consuming setting

    is not required. The monoblock tool is

    also 50 % cheaper to procure than the

    competitor tool. However, the achie-

    vement of the highest diameter and

    length tolerances as well as the best

    surface finishes with high cutting data

    is decisive. As a result it is possible to

    reduce the cycle time by 23 %.

    Very deep axial recesses

    In a further example, very deep axial

    recesses are produced on a machining

    center.

    Originally the machining was under-

    taken using recess tools with clam-ped carbide inserts. The responsible

    member of the MAPAL sales team and

    the specialists in Pforzheim developed

    recess tools with lasered cutting edges

    for pre-machining and fine machining

    during this task. The pre-machining is

    undertaken into the solid using a two-

    cutting edge tool with impressive

    cutting data:

    n = 6,000 min-1, fz= 0.05 mm and

    300 mm/min feed rate. The tool for

    the fine machining is of single-cuttingedge design and machines the work-

    piece with a spindle speed of 8,000

    min-1, 0.1 mm feed per tooth and a

    feed rate of 800 mm/min.

    Your contact person for further information:

    Michael Hils | [email protected]

    LASERPLUSS AG in Kirschweiler bei Idar-Ober-

    stein has specialised in the manufacture of laser

    systems for precision applications for cutting me-

    tals and hard materials, for marking and engra-

    ving all materials, and for welding plastics. The

    company founded in 1997 with Dipl.-Ing. Werner

    Schulz as its head has been part of the MAPAL

    Group since 2009.

    Figure top: Cost-effective external machining with PCD tools from MAPAL.

    Figure bottom: Machined joint contour on a sample part.

    The RayCutter 5-axis

    CNC laser machine from

    LASERPLUSS AG.

    Customer benefits

    High process reliability

    Deep axial recesses possible

    Significantly higher cutting data

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    Page 16 | MAPAL Impulse

    Setting fixture UNISET-V vision developed for complete solutions

    Measuring and setting complete machining tools

    Planning new projects is time-consu-

    ming and expensive. More and more

    customers therefore make use of the

    comprehensive range of services offe-

    red by MAPAL related to part design

    and the delivery of the related compo-

    nents. As along with technologically

    leading and highly productive tools,

    MAPAL offers extensive know-how on

    machining. This aspect relates to both

    custom services as well as to high

    precision peripheral equipment for

    adjusting and measuring the tools.

    Process reliability and part quality due

    to exact measuring

    During the design of tools for com-

    plete machining, fine machining toolsplay a crucial role. As the tools are

    often used for the last manufacturing

    step, all tolerance requirements on

    the part in relation to surface finish,

    dimensional, contour and positional

    accuracy must be reliably met. As a

    specialist for fine machining, MAPAL

    relies on fine boring tools with guide

    pads that can be adjusted to the m.

    Very tight tolerances can be achieved

    with these tools. Due to the setting

    features on the tools it is possible toaddress flexibly any special aspects

    related to the workpiece material or

    the machine. The exact measurement

    and adjustment of these tools is a

    prerequisite for high process reliability

    and part quality. These tasks are suc-

    cessfully undertaken using a precise

    measuring and setting fixture that is

    integrated into the process chain.

    Highest measuring accuracy with

    UNISET-V vision

    For cost-effective series production it

    is particularly important that tools can

    be measured and set to the highest

    precision both quickly and efficiently

    to ensure constant availability at the

    machining center and to avoid down-

    times. The example of a complete ma-

    chining process on clutch and gearbox

    housing makes this aspect clear. The

    optimal machining of the often thin-

    walled, large aluminium cast parts

    requires comprehensive know-how

    during tool design. In particular there

    are high requirements on the shape,

    position, surface finish and diameter

    of the shaft bearing bores. The soluti-on a complex, multi-stage combinati-

    on tool that, along with high accuracy,

    significantly reduces the machining

    times. Along with fixed brazed PCD

    boring tools, these tools use adjustab-

    le inserts and guide pads, as well as

    face cutter heads with adjustable PCD

    milling cartridges for finish machining

    of the sealing faces. For setting the

    tools to the um, MAPAL has developed

    a CNC-controlled setting fixture in

    the form of the UNISET-V series thatis perfectly matched to the require-

    ments placed on these tools due to

    the combination of tactile and optical

    measuring methods.

    Tactile measuring method for setting

    fine boring tool with guide pads

    The vertical setting fixture UNISET-

    V vision is equipped with electronic

    measuring sensors that make it possib-

    le to exactly set fine boring tools with

    guide pads to within 1 m. Depending

    on the position of the guide pads and

    insert, either protrusion measure-

    ment or swinging lever measurement

    is used. As soon as the measuring

    sequence for a tool has been defined

    and saved once using the teach-in

    programming, from then on the mea-

    surement of the tool is undertaken au-

    tomatically via the CNC controller. In

    this way it is possible to significantly

    reduce the non-productive times in

    the measuring room, particularly in

    case of complex, multi-stage tools for

    shaft bearing bores.

    State-of-the art camera system forthe optical measurement

    PCD face cutter heads in the Eco-

    Mill series are sophisticated, efficient

    tools. A prerequisite for their reliable

    usage and long tool lives are inserts

    1.1

    2.1

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    Page 17 | MAPAL Impulse

    Customer benefits

    Universal setting and measuring device for

    manufacturer-independent tool concepts

    Fully automatic measuring sequences using CNC controller

    Highest accuracy due to solid mechanical construction

    that move within defined tolerances.

    For finish machining PCD face cutter

    heads are used; here the exact and

    effective setting of the axial run-out

    on all cutting edges is necessary.

    Using the UNISET-V vision each PCD

    cassette on the face cutter head is

    moved to and measured using the

    optical camera system. If necessary,

    the axial run-out can then be simply

    and quickly corrected at the adjus-

    ting element on the milling cutter. Inparallel the setting process is moni-

    tored optically on the touchscreen

    monitor for the UNISET-V vision. Also

    all other tools used for the complete

    machining process are measured using

    the optical measuring device. All rele-

    vant measuring data, for example tool

    lengths or diameters, can be assigned

    to the tool using the UNISET-V vision.

    The measured data are either saved

    directly on the tool using a Baluff

    chip, or applied directly to the tool

    body in the form of a printed label.

    With both processes, it is ensured that

    no time-consuming corrections are

    necessary on the usage of the tools on

    the machining center.

    A single setting fixture for all require-

    ments

    The different measuring methods for

    a very wide range of tool systems, the

    high precision due to the solid basic

    mechanical set-up and the CNC elec-

    tronics make the UNISET-V vision an

    all-rounder in the tool setting room.

    In particular in the case of tools for

    complete machining the UNISET-V

    vision ensures real productivity ad-

    vantages are obtained due to its high

    degree of flexibility and ease of use, it

    is therefore an indispensable element

    of the complete process chain.

    Your contact person for further information:

    Michael Hils | [email protected]

    The UNISET-V vision makes itpossible to set and measure all tooconcepts used for the completemachining of clutch and gearboxhousings.

    Verticalsetting fixtureUNISET-Vvision.

    1.1 | During the protrusion measurement forsetting fine boring tools with guide pads, themeasuring sensors are first moved to the positionof the guide pads and the measuring range set

    to zero. Then the adjustable inserts are moved toand the measuring range is again set to zero atthe highest point. Due to the low contact pres-sure on the insert and the reduced measuringforce, delicate PCD-tipped inserts can also bemeasured reliably and without risk of damage.

    1.2 | The operator now sets the defined nominaldimensions such as the overhang on the insert inrelation to the guide pad and the diameter.

    2.1 | Optical measurement of a PCD face cutterhead in the EcoMill series.

    2.2 | Setting the axial run-out at the adjustingelement on the milling cutter.

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    Page 18 | MAPAL Impulse

    Identifying and utilising optimisation potential in machining

    productivity increase due to custom tool solutions

    Machining for dialysis equipment significantly optimised

    Unmanned machine tool operation

    safeguarded, machining time halved,

    tool life increased by 20 times, surface

    quality visibly improved - these are

    only some of the impressive results of

    the latest process optimisation in ma-

    chining at Fresenius Medical Care on

    its site in Schweinfurt. Since 1979 the

    company has developed and manufac-

    tured dialysis machines for the inter-

    national market with great success in

    this industrial city in Lower Fran-

    conia. Every year more than 40,000

    systems leave the factory that main-

    tains its position in relation to the

    international competition by means of

    efficiency and clear work processes.

    The strategy of Fresenius Medical Care

    is to be better than the competition inrelation to the quality of the dialysis

    products and production costs.

    To implement these goals the world-

    leading manufacturer of dialysis

    equipment has relied on know-how

    and tools from MAPAL for machining

    since 2000. In close co-operation

    we have managed to further stream-

    line production processes, to reduce

    tool costs and to improve quality

    repeatedly in recent months, reportsLudwig Schmittlein, who is respon-

    sible for milling technical support in

    machining at Fresenius Medical Care

    Deutschland GmbH.

    Process optimisation makes possible

    unmanned production

    As such, a multiblock made of po-

    lypropylene can now also be manu-

    factured unmanned and therefore

    around the clock as a result of a tool

    change. Prior to the change the blind

    bores necessary on this assembly

    were realised in three steps: Due to

    the large diameter of 42 mm, first the

    bore was pre-drilled using a standard

    drill, the bore was then drilled out and

    subsequently machined to the cor-

    rect dimension using a milling cutter.

    This method has the disadvantage

    that long chips were produced during

    boring that, on the one hand, soiled

    the machine tool, and on the other

    hand took a lot of space in the chip

    bin. These two aspects together pre-

    vented unmanned operation at night,

    Benedikt Hetterich, head of the milling

    area and quality assurance in machi-

    ning at Fresenius, describes the initialsituation.

    As the machine configuration did not

    permit milling from the solid, based

    on experience in other applications

    MAPAL engineers suggested a solution

    with a carbide replaceable head

    drill TTD with 180 geometry

    and a PCD-tipped milling cut-

    ter with which the blind bore

    is circular milled in a helix

    after drilling. We have beenworking very successfully with

    this solution for approx. one

    year, Ludwig Schmittlein is

    pleased to state. The chips are

    space-savingly small, boring

    out is not required at all and

    the milling cutter can operate

    with much higher feed such

    that we can operate unmanned

    and also faster than before.

    Another earlier optimisation project

    also made a significant contribution

    to increasing through-put at Freseni-

    us: The filter block, also manufac-

    tured from a block of polypropylene,

    for the therapy system 4008 from

    Fresenius needs a 91 mm deep blind

    bore. However, the walls of the bore

    are not straight, but taper at 1 degree

    downwards, at the transition from the

    flat base of the bore to the side wall

    the bore has a radius; there is also a

    straight section to the opening. As for

    the multifunction block, until recently

    standard drills were used for pilot dril-

    ling and boring out. The 1-angle was

    then cut with 0.2 mm cutting depth

    and a radius milling cutter controlled

    by a CAD program. Just this one pro-cess took 30 minutes and transition

    marks and scoring could occur on the

    surface. Using the alternative develo-

    ped by the MAPAL specialists in close

    co-operation with us, we only need 16

    minutes for the complete machining

    Drilling from the solid and circular milling

    with optimised chip breaking make possibleunmanned production.

    SOFT

    M

    ILLIN

    G

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    Page 19 | MAPAL Impulse

    Customer benefits

    Unmanned production possible

    Tool costs reduced

    Machining timed reduced

    Das fertig gefrste Werkstck.

    Your contact person for further information:

    Michael Neumann | [email protected]

    of the part, reports Ludwig Schmitt-

    lein with pride.

    The chamber opening on the filter

    block is now drilled in one step using

    a replaceable head drill TTD with

    a special design. The drill has the

    MEGA-180 geometry that makes it

    possible a flat bottom in bores in one

    machining step. The contour is then

    milled using a customer-specific car-

    bide form cutter with one material re-

    moval rate. As a result with the new

    tools we have achieved short chips, a

    good surface finish and flowing tran-

    sitions also in this application, adds

    Benedikt Hetterich. Fresenius also

    benefits from longer tool lives,

    as his colleague emphasises: Whilewe could produce approx. 600 parts

    with a corner radius milling cutter,

    we have now passed the 1,500 mark

    and still do not need to change the

    replaceable head.

    Fresenius was able to achieve an even

    more significant increase in tool lives

    by means of tool optimisation in the

    case of a part made of polypropylene

    with 30 % glass fibre content: Prior to

    the change a recess was produced with

    the aid of a conventional solid carbide

    circular milling cutter. Although

    the tool was economical to procure,

    it had to be replaced after only 600

    parts due to wear, Benedikt Hetterich

    looks back. For the last two years we

    have used instead a circular milling

    cutter with PCD cutting material that

    cost almost three times as much, but

    that lasts for at least 16,000 parts! At

    an annual production rate of 36,000

    pieces this means savings of almost

    6,000 euros a year in tool costs alone.But that is not enough. In a partner-

    ship-based co-operation with the tool

    specialists at MAPAL, the responsible

    staff at Fresenius have been able to

    achieve other improvements in many

    areas. We are therefore very happy

    with the support provided by MAPAL

    and the quality of the tools, Benedikt

    Hetterich and Ludwig Schmittlein

    agree.

    Dialysis machine

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    Page 20 | MAPAL Impulse

    Complete machining with minimum number of tools and mini-

    mum number of different indexable inserts.

    Complete machining of water pump housings

    MAPAL has been represented in Po-

    land with a dedicated subsidiary since

    2002. The team around General Mana-

    ger Aleksander Zielonka comprises 27

    staff in sales and service. Comprehen-

    sive local support to customers with

    technologically leading tool solutions

    is the premise of MAPAL Narzedzia

    Precyzyjne Spka z.O.O.. Here the

    focus is on partnership-based collabo-

    ration with customers and machinery

    manufacturers. An example of this

    aspect is a project realised at the end

    of 2012.

    Leszczyn ska Fabryka Pomp (LFP) was

    founded in 1868. The privatisation of

    the organisation and a new strategic

    direction placed the focus on deve-lopment activities. Today LFP is the

    leading manufacturer of pumps and

    pump systems in Poland and one of

    the most modern manufacturers of

    cast parts in the world.

    SW (Schwbische Werkzeugmaschi-

    nen GmbH), as an important MAPAL

    technology partner, opened the door

    to LFP. In the past some small tool

    deliveries were made; deliveries that

    demonstrated the professional supportand the quality of the tools.

    Fewer tools for higher productivity

    In 2012 SW was tasked by LFP to

    deliver the machine and the fix-

    ture for machining new water pump

    housings made of EN-GJL250. In turn

    the machinery manufacturer suggested

    MAPAL Poland as a suitable tool and

    technology partner for meeting the

    customers requirements: complete

    machining with a minimum number

    of tools and a minimum number of

    different indexable inserts.

    Robert Adamczak, Director of Techno-

    logy and Innovation at LFP, descri-

    bes the collaboration as very good

    and trouble-free: The water pump

    housings are machined on an SW

    BA600-2 machining center using

    MAPAL tool technology. Our require-

    ments for a reduced number of tools

    as well as a lower cycle time compa-

    red to the competition have been met

    perfectly by the MAPAL solution. We

    also achieved our objectives signifi-

    cantly more quickly and straightfor-

    wardly during the implementationphase.

    Latest tool technology in use

    The tool technology for the pump

    housing was the result of collaborati-

    on between Robert Adamczak and Pi-

    otr Nowacki (project manager) at LFP,

    Lukasz Barteczka, project engineer in

    Czech sales at SW, and the MAPAL

    team, comprising regional sales mana-

    ger Piotr Jadrzyk, salesperson MarcinWawrzonkowski and Martin Rottenbil-

    ler, who co-ordinated the activities in

    the headquarters in Aalen. The project

    features the following highlights: the

    main bore on the water pump housing

    is pre-machined using two multi-stage

    ISO boring tools based on tangential

    technology. In similar projects at LFP

    three tools were used for this purpose.

    In addition to this saving in tools, the

    machining using the MAPAL tools

    is also significantly faster. With a

    cutting speed of 120 m/min and a feed

    per tooth of 0.2 mm the pre-machi-

    ning takes significantly less time than

    predicted. For the main bore a circula-

    rity of 0.05 mm and a concentricity of

    0.025 mm are required. For this reason

    the fine machining is undertaken

    using a multi-stage fine boring tool

    with guide pads at a spindle speed

    of 540 min-1and a feed of 0.15 mm/

    rev. In this way it, is possible to meet

    the quality requirements reliably and

    machine all steps in the main bore

    simultaneously. With the ISO boring

    bars used in the past at LFP, there

    were often problems with the

    concentricity of the individual

    steps in relation to each other.

    External recess is interpolated.

    The interpolation turning

    method is used to machine

    an external recess. Lower tool

    costs with high workpiece qua-

    lity at the same time were the

    key arguments for this machi-

    ning technology. The machine

    from SW used is very suitable

    for interpolation turning dueto its dynamic performance

    and rigidity.

    Stockkeeping optimised

    MAPAL was also able to meet

    the requirement from LFP to

    minimise and standardise the

    inserts used: The same in-

    dexable inserts are used for all

    workpiece variants such thatCOM

    PLETEM

    ACHINING

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    Page 21 | MAPAL Impulse

    Customer benefits

    Leading tool technology

    Custom services

    Partnership-based collaboration

    the stockkeeping is limited to only a

    few types. Different tool bodies are

    available for varying bore dimensi-

    ons on the variants. A call warehouse

    in the process of establishment at

    MAPAL in Poznan for the necessary

    indexable inserts is intended to realise

    even more optimisation potential.

    Project realisation in record time

    Due to the smooth collaboration

    between the partners involved, the

    machining was accepted after just one

    week, a task that normally takes up to

    two months. It was therefore possible

    to start production earlier than plan-

    ned. Reason enough for LFP to invol-

    ve MAPAL again in future projects,

    as Piotr Nowacki, chief technologist

    at LFP, confirms: Our decision to use

    MAPAL technology was definitely

    correct. We are convinced that this

    collaboration will bring many tech-

    nical and commercial advantages for

    efficient production also in future

    projects.

    Partnership-based collaboration (f.l.t.r.): PiotrNowacki (LFP chief technologist), ukasz Barteczka(project engineer at SW) and Piotr Jdrzyk (respon-sible salesperson at MAPAL Poland).

    Pre-machining of main bore usinga combination tool with ISOindexable inserts.

    The fine machining is undertakenusing a multi-stage tool withguide pads.

    Your local contact in Poland:

    Alexander Zielonka | [email protected] turning is used to produce an external recess.

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    Page 22 | MAPAL Impulse

    Machining of the Sigma engine in Taubat successful due to

    modern tool technology and close collaboration

    Worldwide collaboration for optimal processes MAPAL and Ford

    The Ford Motor Companys Taubatproduction site was founded in 1974and is considered in Brazil to be apioneer in the production of engi-nes, gearboxes and other automotiveparts. Ford Taubat produces 430,000engines and 500,000 gearboxes per

    year. The latest production processesare used to machine and assemblethe cast parts. In January this yearFord Taubat was able to achieve twomajor milestones: the total produc-tion of engines passed five million,the production of gearboxes the fourmillion mark.

    Ford launched a new series of Sigmaengines in December 2009. This inno-

    vative engine generation was develo-ped as a global platform. Ford descri-bes the Sigma engine as light, durable,economical, low noise and lowemission; the engine is manufacturedin Germany, England, Romania andBrazil. 600 million US Dollars wereinvested in Taubat to manufacturethe new engine. As a consequence itwas possible to double the productioncapacity for engines.

    Collaboration at global level

    Ford approached MAPAL with the taskof designing the machining processfor the Sigma engine, the first engineon which the engine block, cylinderhead and gearbox housing are madeof aluminium. To optimally addressthe requirements on the machiningprocess and to ensure the usage of the

    same technology on all productionsites, several MAPAL sites aroundthe world worked together. MAPALEngland was responsible for the engi-neering and the overall co-ordinationof the project. The tools were deve-loped in Aalen and in the Germancompetence centers, and then broken-in and tested in the test center. Forthe production in Brazil, Joo PauloSouza is always on site in Taubatand, together with the team aroundTechnical Manager Rogerio Rodrigues,is responsible for a smooth runningprocess. Duilio Dalla Rosa was respon-sible for breaking-in at the machinerymanufacturer; today he supports theSigma Camaari Industrial Complex in

    Camaari. Ford Taubat had alreadyestablished a partnership with MAPALdo Brazil in 2008; this partnership in-

    volved the delivery of technologicallyleading tools as well as optimisationservices in production at Ford.

    Based on the example of the Sig-ma engine it is clear that significantpotential can still be tapped on site tomake production more cost-effectiveand more reliable. Some highlights

    from the Sigma project in Taubat arepresented in the following.

    Costs halved during the machining of

    the cylinder bores

    During the machining of the cast cy-linder bores it was possible to reducethe machining costs by more than50 % due to a continuous process

    of improvement and optimisation.Originally a six-cutting edge tool withPcBN blades was used for the ma-chining. The end of the tool life wasreached after 250 parts per cuttingedge. During optimisation the spe-cialists from MAPAL do Brazil wereable to reduce the number of cuttingedges on the tool and at the same timeto triple the tool life. The cycle timeremains unchanged with the currentmachining values (n = 2,400 min-1and vc= 583 m/min, vf= 1,296 mm/min).

    More teeth bring higher milling speed

    and improved tool life

    The sealing faces between theengine block and cylinder blockare machined using an EcoFeedface milling cutter with a diame-ter of 250 mm and 36 teeth. TheEcoFeed face milling cutters areequipped with disposable millingcartridges and therefore involvesignificantly less logistics effortduring handling. The EcoFeedachieves perfect surface finishesdue to exact positioning of the

    milling cartridges in the tool bodyand the sensitive wedge adjust-ment of the inserts.

    In surface machining at Ford

    Taubat it was possible to signifi-cantly improve the performance ofthe EcoFeed by means of optimi-sation on site. While originally it

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    Page 23 | MAPAL Impulse

    Customer benefits

    International project management

    Detailed local know-how for optimised processes

    Cost reduction by more than 50 %

    Your local contact in Brazil:

    Sidney Pimenta Paiva | [email protected]

    The team at MAPAL do Brazil from left to right:

    Technical Manager Rogerio Rodrigues, Duilio

    Dalla Rosa, General Manager Sidney Pimenta

    Paiva and Mairon Cezar from the engineering

    team as well as Joo Paulo Souza, the engineer

    responsible in the Taubat works.

    Tool for machining valve seat and valve guide.

    Significantly increased cost-effectiveness during the machining

    of face surfaces on engine block and cylinder head the Eco-

    Feed. Engine production at Ford Taubat.

    8,500

    25,000

    3,700

    15,000

    Engine block machining:

    Cylinder head machining:

    Before:

    New:

    Before:

    New:

    3-times the tool life

    was possible to machine 8,500 engine

    blocks and 3,700 cylinder heads, the

    tool lives are now even more impres-

    sive: one EcoFeed face milling cutter

    machines 25,000 engine blocks and

    15,000 cylinder heads with a cutting

    speed of 3,000 m/min and feed rate of

    11,000 mm/min.

    Successful teamwork

    The successful collaboration with Ford

    shows how MAPAL is available to as-

    sist customers worldwide with know-

    how, commitment and a team of spe-

    cialists. These days when projects are

    often transnational, it is essential to

    be able to offer the same product and

    engineering know-how in all markets.

    With subsidiaries in 21 countries, a

    continuous exchange of knowledge at

    all levels and the focus on a close re-

    lationship with the customer based on

    trust, MAPAL is predestined to become

    a dependable partner.

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    Responsible for the content:

    Andreas Enzenbach

    Editorial team: A Enzenbach O Munz

    Publisher:

    MAPAL Przisionswerkzeuge Dr. Kress KG

    P.O. Box 1520 D-73405 Aalen

    IMPRINT