lebensdauer normalien2003 gb
TRANSCRIPT
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F IB R O –
Today‘s Target in Toolrooms
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F IB R O –
■ reducing downtimes■ reducing maintainance■ getting longer toolife■ longer cycletimes between resharpening■ in total: getting cost‘s down
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F IB R O –
■ Searching the problems and first action is:■ using better material for punches■ using better material for dies■ coating punches ■ and dies
What will be done for this
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F IB R O –
■ why is it done like this■ everyone can see here is something to do■ but is this all■ no■ there are more important factors as■ the press itself■ the guiding systems
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F IB R O –
the press itselfgives unequalsideforces to the tool
Forces comming from the press ram are high and unequal,who knows the datas from the parallissm of the press ram to the press table? Theses things are not taken under consideration because most times unknown!
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F IB R O –
Press forces occurereduction of tool life
Who knows the existing situation of the press guides?Maintainance or responsible people say they know but if you ask for real datasthey can not be found. And even if they have they can not do anything against it.
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F IB R O –
but the main and most important factor is
the guide element
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F IB R O –
All forces are going to the guidelement
no matter they are occured from the press or from the cutting or bending forces from the tool
the guide element is responsible to hold the position
between punch and die during cutting or bending process
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F IB R O –
SuperfinishedGuide Pillars
High Precision Ball Bearing
Guides
High PrecisionRoller Guides
PrecisionSintered Ferrite
Guides
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F IB R O –
FIBRO Sintered Ferrite Guides■ high stiffness■ good emergency running
properties■ high precision guide
tolerances■ consits 20% of pores,
vacum filled with oil
able to keep side forces
able to keep side forces
max. velocity 25 m
/min
max. velocity 25 m
/min
max. surface pressure 250N
/mm
²
max. surface pressure 250N
/mm
²
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F IB R O –
ball cage
■ no clearance■ preloaded■ low heat increase■ good wear resistance ■ less maintenance
to avoid forces
to avoid forces
comm
ing from the side
comm
ing from the side
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F IB R O –
FIBRO High Precision Roller Guides
■ higher load carrying capacities
■ larger contact area■ demands significantly
smaller preloading values
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F IB R O – Guiding Systems
Sintered Guide Bushes with carbonitriededsurface. A porous material with 18-20%of pours, highes security against dryrunning and seizing.
Ball Bearing Busings, Brass Ball Cages,highest quantity of balls compared with
all competitors. Roller Cages, highest quantity of rollers
compared with all competitors.
Steel Bushes, running surfaceBronce coated.
Bronce Bushings with embedded solid lubricant.
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F IB R O – Pairing Classification
The guide pillars, the sintered sliding guides and the guide bushings for balland roller cages are within the allowed production tolerance signed with colour.This allows to choose respecitve to the
demand a smaller or wider tolerance.
Sintered guide bush
Pillar/shaft
Ball bearing bush
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F IB R O –
Lifetime of ball bearing guides
■ high quantity of balls■ high quality of surface of pillar and bush■ surface roughness 1µm or smaller■ hardened pillars to HRC 62+-2 or higher■ hardened bushes as above■ roundness very important
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F IB R O –
Cycletime before regrinding
what is usual
what is normal
HSS Dies 100.000 - 500.000 strokes
Carbide Dies 1,5 million - 3 million strokes
at some customers were 10 million strokes reported30 million with a Kramski tool
at one customer 8 million strokesafter 40 million, ball cages were replacedafter 270 million, all guides were replaced
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F IB R O –
2020.62.025.090.120.102061.44.025.047.102061.44.025.037.10206.71.025.045206.71.025.056
total for 4 sets 864,--ball cages replaced 1248,--total 2112,--€270 Millions 0,00000782
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F IB R O –
Deutschland England
Schweden
Frankreich
Norwegen
TaiwanUSA
Brasilien Mexico
China
Tschechien
References Hydraulic Cams
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F IB R O – Referenzliste Standard Parts
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F IB R O – SKODA MLADA BOLESLAV ECU-1, BU FINOVA REMSCHEID SCHLOSSERSTRAMUEHLHOFF UEDEM MUEHLHOFFSTRAS WILLMES DROLSHAGEN INDUSTRIESTGRAFF HANNOVER KABELKAMP 7 ISE BERGNEUSTADT OTHESTRASSE 1WERKZEUGBAU LAICHINGEN GEISLIN FISCHER FINNENTROP AM STEINWERTHYSSENKRUPP HEILBRONN WEIPERT ZAPADTKA BRETZFELD MOOSBACHSTRKEMMERICH NIEDERAU GEWERBEGEBI DINGERKUS ATTENDORN ROENTGENSTWASSERLOOS VELBERT PFEILSTRASS PLOCK WILNSDORF ESSENER STRASSBAUER DILLINGEN BRUCHWEG 22 TOWER BERGISCH GLADBACH DE-GASALLGAIER UHINGEN ULMER STRASSE GRIWE WESTERBURG BOSCHSTRASSEFAGRO GROSS-GERAU AM WASSERWEG KONTEC MOECKMUEHL NORDSTRASSEWMU MARIENFELD OESTER 18 GUTBROD DETTINGEN ROBERT-BOSCHMERIMA BRACKENHEIM WIESENBACHS PFT FROENDENBERG ARDEYER STRASSTAHL GROSSBOTTWAR BAHNHOFSTR HEIDEL VIERSEN LINDER STRASSEFRIESS WADERN-LOCKWEILER MITTE HK REHLINGEN IN DUERRFELDSLACHSCHMEDTHENKE GUETERSLOH LUPINE SCHWARZ PR.OLDENDORF LERCHENWEHETTICH SCHWAEBISCH GMUEND FOR VAILLANT REMSCHEID BERGHAUSERKOENIG GAGGENAU KOENIGSTRASSE MARBACH HEILBRONN AUGUST-HAEUSKW WEINSBERG LINDICHSTRASSE 11 NOTHELFER RAVENSBURG BLEICHERSLOCH IDAR-OBERSTEIN INDUSTRIES KAMAY EPPINGEN SULZFELDER STRAHESSE LENNESTADT WIESENGRUND 9 TRAUTWEIN SCHWAEBISCH GMUEND GMAYFLOWER GAGGENAU MAX-ROTH-ST SALZGITTER OSNABRUECK INDUSTRI
Total appr. 12.000 customers
References Standard Parts
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F IB R O –
26.02.04 W. Löhsl
Thank you!