Device and method for bending a workpiece

US9003848B2 · kind B2 · utility

Assignee

• TRUMPF Maschinen Austria GmbH & Co. KG · AT

Inventors

• Ferdinand Bammer · Wien, AT
• Dieter Schuoecker · Wien, AT
• Bernhard Holzinger · Böblingen, DE
• Joachim Aichinger · Ansfelden, AT
• Gerhard Sperrer · Kirchdorf an der Krems, AT
• Thomas Schumi · Wien, AT

Key dates

• Filing date: Jun 28, 2010
• Grant date: Apr 14, 2015
• Expiry date: Jan 17, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21D5/0209
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a bending die (3), particularly a V-shaped die (13), comprising a tool base body (7) with a contact surface (10) for contacting the workpiece (2) to be bent by a bending punch (5), a groove-shaped bending recess (11) in the contact surface (10) and at least one beam exit opening (17) in the bending recess (11) and extending along thereof, which is configured to discharge high-energy radiation (18) onto a workpiece (2) bearing against the contact surface (10) in order to heat the deformation zone of the workpiece (2). An arrangement of diode laser bars (20) is fixed in the interior of the tool base body (7) for producing the radiation (18). Said diode laser bars (20) are arranged at least approximately uniformly along the longitudinal direction (27) of the bending recess (11) behind the beam exit opening (17) in the tool base body (7).