The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2017
Filed:
Sep. 25, 2013
Trumpf Maschinen Austria Gmbh & Co. KG, Pasching, AT;
Gerhard Sperrer, Oberschlierbach, AT;
TRUMPF Maschinen Austria GmbH & Co. KG., Pasching, AT;
Abstract
The invention relates to a method for bending a workpiece () of sheet metal, whereby a deformation region (), in particular a strip-shaped region, on the workpiece () containing the bent edge to be produced () is heated before and/or during the bending process to a deforming temperature below the fusion temperature of the metal to increase deformability locally. In order to reduce undesirable deformation due to shrinkage stress, the workpiece () is heated before and/or during and/or after the bending operation in at least one heating zone () that is different from the deformation region () by means of the application of energy from outside the workpiece () starting from an initial temperature to a processing temperature below the fusion temperature of the metal.