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Butterfly Dies

Butterfly Dies. Increase Extrusion Speed through Innovative Porthole Die Design. Claudio Pinter & Tommaso Pinter, ALMAX-MORI (Italy). Schedule (30’). Introduction Features & Advantages Applications Overview Qualitative Analysis Developments & New Technologies. Overview.

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Butterfly Dies

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  1. Butterfly Dies Increase Extrusion Speed through Innovative Porthole Die Design Claudio Pinter & Tommaso Pinter, ALMAX-MORI (Italy) Best Practices Meeting - 23rd of May 2007

  2. Schedule (30’) • Introduction • Features & Advantages • Applications Overview • Qualitative Analysis • Developments & New Technologies

  3. Overview • Almax & Alumat Group • Since 1965 • 600 dies/month • Butterfly Die • Porthole Die • Introduced in Italy in the 90’s • Butterfly Die™ • Applied to 35% of new projects

  4. Features • Excellent architecture • Largest feedings possible; • Better feeding of the exteriors and concealed parts; • Better support against mandrel flections. • Results • More stability and less mandrel movements; • Less working pressure/temperature; • Higher extrusion speed; • Longer Die Life. • Final Goal: Higher Press Productivity

  5. Applications

  6. 7’ Case Study (1/3)

  7. Case Study (2/3)

  8. Case Study (3/3) Ram Speed: 6 mm/sec Ram Speed: 8 mm/sec

  9. Developments (1/2) PARTNERSHIP Customer Request Research & Development

  10. Developments (2/3)

  11. Developments (3/3) • What We Need • 3D design • Increase Lead Time • Supply Agreement (€) • 3D Finite Elements Simulation • to find critical points in the die design; • to better balance the feedings; • to compare different constructions. • Too Soon?

  12. New Technologies (1/2) • Research Program (University of Trento, Italy) • In-House Nitriding • Die Manufacturing from a Tempered Steel Bar • PVD Coating • 3D Finite Elements Simulation • Final Goal of the Program • Deliver Dies Ready for Production • Higher Die Life • Lead Time Reduction • Zero Trials

  13. New Technologies (2/2) • AlCrN PVD Coating • Deposition Temperature 450°C • Bearings micro hardness up to 3200 HV • Friction Coefficient 0.35 • Maximum Working Temperature 1100°C • Applied on Ring Nuts • To be tested for Soft Alloys (e.g. 3003)

  14. www.almax-mori.it Butterfly Die™

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