digital technology in the wax room - mpi systems · ici 59th technical conference & expo...
TRANSCRIPT
![Page 1: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/1.jpg)
Digital Technology
in the Wax Room
ICI 59th Technical Conference & Expo
Nashville, TN
7th – 10th October 2012
Bruce Phipps
President
MPI Incorporated
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Where we came from
• Trip down Memory
Lane
• 40 years ago controls
were minimal
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Where are we going
• Today with Digital Controls we can have the opportunity to
see what is happening with:
– Wax Temperature
– Wax Flow
– Wax Pressure
• Hold tighter tolerances
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Some things never change
No matter how sophisticated the instrumentation, the
application of that instrumentation and how it is used to control
the process is the real challenge.
![Page 5: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/5.jpg)
Key Input Variables
Key Input Variables:
• Temperature
• Flow
• Pressure
• Time
• Wax
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Key Input Variables
Wax Pressure Wax Temperature
Wax Flow
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Key Input Variables Timer
Die Temperature
Wax Pressure Wax Temperature
Wax Flow
Wax
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Digital Technology in the Wax Room
Digital Technology allows us to
accurately control wax:
• Temperature
• Flow
• Pressure
• Time
• Wax
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The Process of Wax Injection
• The goal of wax injection is to replace 100% of the air in the
die with wax
• If you achieve this goal you will get a perfect wax pattern
• To be successful you need control
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The Process of Wax Injection
Digital
technology
provides the
control
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Digital Technology in the Wax Room
• Wax Temperature Control
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Digital Technology in the Wax Room
• Wax Temperature Control
• Wax Flow and Pressure Control
![Page 13: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/13.jpg)
Digital Technology in the Wax Room
![Page 14: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/14.jpg)
Digital Technology in the Wax Room
• Wax Temperature Control
• Wax Flow and Pressure Control
• Die Temperature Control
![Page 15: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/15.jpg)
Digital Technology in the Wax Room
• Wax Temperature Control
• Wax Flow and Pressure Control
• Die Temperature Control
• Injection Time
![Page 16: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/16.jpg)
Digital Technology in the Wax Room
Digital Technology allows for:
• Store recipes
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Digital Technology in the Wax Room
Digital Technology allows for:
• Store recipes
• Control and analysis of Key Input Variables
![Page 18: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/18.jpg)
Digital Technology in the Wax Room
Digital Technology allows for:
• Store recipes
• Control and analysis of Key Input Variables
• Repeatable setups
![Page 19: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/19.jpg)
Digital Technology in the Wax Room
Digital Technology allows for:
• Store recipes
• Control and analysis of Key Input Variables
• Repeatable setups
• Control who can make process changes
![Page 20: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/20.jpg)
Digital Technology in the Wax Room
Digital Technology allows for:
• Store recipes
• Control and analysis of Key Input Variables
• Repeatable setups
• Control who can make process changes
• Vary the flow and pressure during an injection cycle
![Page 21: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/21.jpg)
Why Not Perfect Patterns?
The controls have the ability to give you a perfect pattern each
time.
• Why are ’t fou dries produ i g perfe t patter s all the ti e?
• Why do we still have pattern defects?
![Page 22: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/22.jpg)
Why Not Perfect Patterns?
No matter how sophisticated the instrumentation is, the
application of that instrumentation and how it is used to control
the process is the real challenge.
![Page 23: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/23.jpg)
Why Not Perfect Patterns?
How do you know that your
machine is doing what it is
supposed to do?
![Page 24: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/24.jpg)
Data Collection
How do you o pare o e a ufa turer’s a hi e to another?
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Data Collection
Through the use of digital data collection devices
Pressure readout at the nozzle MPI’s 20-20 Process Vision
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Data Collection
Data collection Device
Wax temperature sensing
Wax pressure sensing
Wax Flow sensing
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Data Collection
Eliminate your machines
personality
Achieve repeatability for all
your machines
![Page 28: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/28.jpg)
Data Collection
Example #1
A large foundry benefited from the use of a data collection
device
• Collected Data from all machines
• Saw variations between machines
• Saw variations within the machines
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Data Collection
Example #1
Compared data
with a newer
Digitally controlled
machine
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Data Collection
Example #1
In the above example, one of the data points being collected was
the wax temperature.
• Used data collected to analyze, through Statistical Process
Control, wax temperature variation at the nozzle
• Data was gathered every 0.1 second
• See illustration 2
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Digital Technology in the Wax Room
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Data Collection
Example #2
• It is difficult to predict the outcome of an injection recipe
• Start with a similar recipe of a know part
• What happens if your part has dimensional variation from
specification?
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Data Collection
Example #2
Using Data to drive your injection recipe
• Create a 2k full factorial Design of Experiment (DOE)
• One of our customers conducted such and experiment
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1. Dwell Time 0.1017 0.0941 0.0791 0.0856
1. Wax Flow
2. Dwell Time 0.0508 0.0598 0.0570 0.0531
1. Wax Pressure
1. Dwell Time 0.0921 0.0720 0.0920 0.0817
2. Wax Flow
2. Dwell Time 0.0435 0.0489 0.0641 0.0650
1. Wax Temp
1. Dwell Time 0.0804 0.0865 0.0764 0.0858
1. Wax Flow
2. Dwell Time 0.0656 0.0459 0.0525 0.0485
2. Wax Pressure
1. Dwell Time 0.0708 0.0788 0.0835 0.0655
2. Wax Flow
2. Dwell Time 0.0425 0.0412 0.0400 0.0431
1. Platen Temperature
1. Dwell Time 0.0914 0.0709 0.0884 0.0877
1. Wax Flow
2. Dwell Time 0.0470 0.0510 0.0609 0.0535
1. Wax Pressure
1. Dwell Time 0.0873 0.0863 0.0900 0.0803
2. Wax Flow
2. Dwell Time 0.0470 0.0521 0.0512 0.0510
2. Wax Temp
1. Dwell Time 0.0820 0.0805 0.0751 0.0707
1. Wax Flow
2. Dwell Time 0.0402 0.0480 0.0559 0.0488
2. Wax Pressure
1. Dwell Time 0.0489 0.0790 0.0500 0.0805
2. Wax Flow
2. Dwell Time 0.0511 0.0425 0.0410 0.0457
Wax Parameter DOE
0.1076 0.0959 0.0885 0.0983
Dim 1 Dim 2
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132 degrees 140 degrees 2 cu in / sec 10 cu in / sec
Dim 1 vs Wax Temp 0.0700 0.0674 Dim 1 vs Wax Flow 0.0716 0.0658
Dim 2 vs Wax Temp 0.0680 0.0683 Dim 2 vs Wax Flow 0.0700 0.0662
70 degrees 80 degrees 200 psi 650 psi
Dim 1 vs Platen Temp 0.0650 0.0725 Dim 1 vs Wax Pressure 0.0732 0.0643
Dim 2 vs Platen Temp 0.0657 0.0705 Dim 2 vs Wax Pressure 0.0729 0.0633
0.06400.06500.06600.06700.06800.06900.07000.07100.07200.07300.07400.0750
70 degrees 80 degrees
Ch
eck
Fix
tu
re
Va
lue
Dimensional Change relative to Platen
Temp
Dim 1 vs Platen Temp Dim 2 vs Platen Temp
0.0670
0.0675
0.0680
0.0685
0.0690
0.0695
0.0700
0.0705
132 degrees 140 degrees
Ch
eck
Fix
tu
re
va
lue
Dimensional Change relative to Wax
Temp
Dim 1 vs Wax Temp Dim 2 vs Wax Temp
0.0620
0.0640
0.0660
0.0680
0.0700
0.0720
0.0740
200 psi 650 psi
Ch
eck
Fix
tu
re
va
lue
Dimensional Change relative to Wax Injections
Pressure
Dim 1 vs Wax Pressure Dim 2 vs Wax Pressure
0.0650
0.0660
0.0670
0.0680
0.0690
0.0700
0.0710
0.0720
2 cu in / sec 10 cu in / sec
Ch
eck
Fix
tu
re
Va
lue
Dimensional Change relative to Wax
Flow
Dim 1 vs Wax Flow Dim 2 vs Wax Flow
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85 sec 200 sec
Dim 1 vs Dwell Time 0.0854 0.0521
Dim 2 vs Dwell Time 0.0833 0.0530
200 psi & 85 sec 650 psi & 200 sec 200 psi & 200 sec 650 psi & 85 sec
Dim 1 vs Wax Pressure 1 and Dwell Time 1 0.0922 0.0473 Dim 1 vs Wax Pressure 1 and Dwell Time 2 0.0542 0.0786
Dim 2 vs Wax Pressure 2 and Dwell Time 2 0.0892 0.0493 Dim 2 vs Wax Pressure 2 and Dwell Time 1 0.0416 0.0774
Note: The larger number denotes a smaller part
0.0500
0.0600
0.0700
0.0800
0.0900
85 sec 200 sec
Ch
eck
Fix
tu
re
Va
lue
Dimensional Change relative to Wax Dwell
Time
Dim 1 vs Dwell Time Dim 2 vs Dwell Time
0.0400
0.0600
0.0800
0.1000
200 psi & 85 sec 650 psi & 200 sec
Ch
eck
Fix
tu
re
Va
lue
s
Dimensional Change relative to Wax
Pressure and Dwell Time
Dim 1 vs Wax Pressure 1 and Dwell Time 1
Dim 2 vs Wax Pressure 2 and Dwell Time 2
0.0400
0.0500
0.0600
0.0700
0.0800
200 psi & 200 sec 650 psi & 85 sec
Ch
eck
Fix
tu
re
Va
lue
s
Dimensional Change relative to Wax
Pressure and Dwell Time
Dim 1 vs Wax Pressure 1 and Dwell Time 2
Dim 2 vs Wax Pressure 2 and Dwell Time 1
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Train Your Personnel
Having your personnel adapt to the new digital technology of the
wax room is key to success.
• Need to e trai ed o it’s operatio
• Understand the differences between old and new
• The operator may be reluctant to change
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Train Your Personnel
It is not uncommon to find a new digitally controlled machine
setup incorrectly:
Example #1: Temperature variations in the machine due to
improper setup, especially in the injection nozzle
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Train Your Personnel
It is not uncommon to find a new digitally controlled machine
setup incorrectly:
Example #1: Temperature variations in the machine due to
improper setup
Example #2: Machine designed to run paste wax but is used
as a liquid machine
![Page 40: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/40.jpg)
Train Your Personnel
It is not uncommon to find a new digitally controlled machine
setup incorrectly:
Example #1: Temperature variations in the machine due to
improper setup
Example #2: Machine designed to run paste wax but is used
as a liquid machine
Example #3: Wax flow control being controlled with wax
pressure and not understanding why
![Page 41: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/41.jpg)
Train Your Personnel
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Robotic Integration
Robotic Integration in the wax room:
Robots have become a reality in the wax room
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Robotic Integration
Robotic Integration in the wax room:
Robots have become a reality in the wax room
• Automated wax injection cell using a 6 axis robot
![Page 44: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/44.jpg)
Automated Injection: 6 Axis Robot
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Robotic Integration
Robotic Integration in the wax room:
Robots have become a reality in the wax room
• Automated wax injection cell using a 6 axis robot
• Automated pattern assembly, multiple patterns per runner
bar
![Page 46: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/46.jpg)
Robotic Integration
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Robotic Integration
Robotic Integration in the wax room:
Robots have become a reality in the wax room
• Automated wax injection cell using a 6 axis robot
• Automated pattern assembly, multiple patterns per runner
bar
• Automated pattern assembly using two 6 axis robots for single
crystal assemblies
![Page 48: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/48.jpg)
Automated Assembly: Two 6 Axis Robots
Single
Crystal
Turbine
Blade
Assembly
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Automated Assembly: Two 6 Axis Robots
![Page 50: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/50.jpg)
Automated Assembly: Two 6 Axis Robots
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Digital Technology in the Wax Room
• Digital technology is awesome
• Yes it can be frustrating
• Gains out way the setbacks
• Robotic integration in the wax room
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Digital Technology in the Wax Room
Embracing digital technology through proper education will
achieve long term gains in:
• Productivity
• Accuracy
• Casting Yields
• Bottom Line
![Page 53: Digital Technology in the Wax Room - MPI Systems · ICI 59th Technical Conference & Expo Nashville, TN 7th – 10th October 2012 Bruce Phipps President MPI Incorporated. Where we](https://reader034.vdocuments.mx/reader034/viewer/2022050602/5fa9e60a419f6c3aa9411187/html5/thumbnails/53.jpg)
Digital Technology in the Wax Room
Thank You