Sheet metal processing methods utilizing a combined punching and forming machine

US7757372B2 · kind B2 · utility

Assignee

• TRUMPF Werkzeugmaschinen GmbH + Co. KG · DE

Inventors

• Peter Bytow · Simmozheim, DE
• Christoph Hammer · Grabs, CH

Key dates

• Filing date: Sep 17, 2004
• Grant date: Jul 20, 2010
• Expiry date: Dec 30, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/5124
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A method of processing a sheet metal sheet with a combined punching and forming machine includes spraying a lubricant onto on a lower side of the sheet metal sheet in a first forming position on the sheet, forming the sheet metal sheet at the first forming position with a first forming tool, and forming the sheet metal sheet with the second forming tool at a second forming position on the sheet metal sheet after spraying the lubricant onto the first forming position and before forming the sheet metal sheet at the first forming position.