Transcript Butterfly Dies

Butterfly Dies
Increase Extrusion Speed
through Innovative
Porthole Die Design
Claudio Pinter & Tommaso Pinter, ALMAX-MORI (Italy)
Best Practices Meeting - 23rd of May 2007
Schedule (30’)
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Introduction
Features & Advantages
Applications Overview
Qualitative Analysis
Developments & New Technologies
Overview
1.
Almax & Alumat Group
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Since 1965
600 dies/month
2.
Butterfly Die
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Porthole Die
Introduced in Italy in the 90’s
Butterfly Die™
Applied to 35% of new projects
Features
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Excellent architecture
1.
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Results
1.
2.
3.
4.
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Largest feedings possible;
Better feeding of the exteriors and concealed parts;
Better support against mandrel flections.
More stability and less mandrel movements;
Less working pressure/temperature;
Higher extrusion speed;
Longer Die Life.
Final Goal: Higher Press Productivity
Applications
Case Study (1/3)
7’
Case Study (2/3)
Case Study (3/3)
Comparison - Working Pressure
250
Ram Speed:
6 mm/sec
Pressure [bar]
200
150
Ram Speed:
8 mm/sec
100
50
0
0
20
40
60
80
100
Time [sec]
Butterfly Construction
Traditional Design
120
140
Developments (1/2)
Customer Request
PARTNERSHIP
Research & Development
Developments (2/3)
Developments (3/3)
What We Need
1.
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3D Finite Elements Simulation
2.
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3.
3D design
Increase Lead Time
Supply Agreement (€)
to find critical points in the die
design;
to better balance the
feedings;
to compare different
constructions.
Too Soon?
New Technologies (1/2)
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Research Program (University of Trento, Italy)
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In-House Nitriding
Die Manufacturing from a Tempered Steel Bar
PVD Coating
3D Finite Elements Simulation
Final Goal of the Program
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Deliver Dies Ready for Production
Higher Die Life
Lead Time Reduction
Zero Trials
New Technologies (2/2)
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AlCrN PVD Coating
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Deposition Temperature 450°C
Bearings micro hardness up to 3200 HV
Friction Coefficient 0.35
Maximum Working Temperature 1100°C
Applied on Ring Nuts
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To be tested for Soft Alloys (e.g. 3003)
Butterfly Die™
www.almax-mori.it