alex 2007 - 13 & 14 november 2007, eindhoven butterfly dies ® increase extrusion speed through...
TRANSCRIPT
ALex 2007 - 13 & 14 November 2007, Eindhoven
Butterfly Dies®
Increase Extrusion Speed through
Innovative Porthole Die Design
Mr Tommaso Pinter, ALMAX-MORI (Italy)
Overview Features Applications Overview Qualitative Analysis Developments
Schedule (15’)
1. Almax & Alumat Group Since 1965 Sales for 14.000 K€/year
2. Butterfly Die Porthole Die Introduced in Italy in the 90’s Butterfly Die™
Applied to 30% of new projects
Overview
Effective architecture 1. Bigger feedings;2. Better feeding of the exteriors and concealed parts;3. Better support against mandrel flections.
Consequences1. More stability and less mandrel movements;2. Less working pressure/temperature;3. Higher extrusion speed;4. Longer Die Life.
Final Goal: Higher Press Productivity
Features
Applications
Case Study (1/3)
7’
Case Study (2/3)
Comparison - Working Pressure
0
50
100
150
200
250
0 20 40 60 80 100 120 140
Time [sec]
Pre
ssu
re [b
ar]
Butterfly Construction Traditional Design
Case Study (3/3)
Ram Speed: 8 mm/sec
Ram Speed: 6 mm/sec
Developments: 3D CAM
Courtesy of Aleris
Aluminum Bonn
Developments: 3D Simulation
1. 2D Die Design
2. 3D Solid Model
3. Aluminium Model & FEM Generation
4. Set Up of Process Parameters & Boundary Conditions
5. Simulation Run & Process Interpretation
1. Process Parameters Direct Extrusion Container Diameter: 500 mm Alloy: 6082 Nominal Profile Weight: 21.4 Kg/m
2. Hypothesis Not Flexible Die Adiabatic Process
3. Boundary Conditions Press Specific Pressure: 46 Kg/mm2
Die Preheating Temperature: 470 °C Billet Preheating Temperature: 530
°C Medium RAM Speed: 1 mm/sec
HyperXtrude® 8.0
Results Analysis
World Tarde Center - Dubai
www.almax-mori.it
Butterfly Die®