Patent ID: 9527122
Filing Date: 2016-12-27
CPC Classification: B21D

Claim Text:
1. A method for guiding and distributing high-energy radiation, the method comprising steps of: providing a bending die comprising a tool base body with a contact surface, a groove-like bending recess in the contact surface, a first surface, a first beam entry opening in the first surface, at least one beam exit opening arranged in the groove-like bending recess extending along the groove-like bending recess, and a second surface opposite to the first surface, wherein the tool base body has a subsequent beam path in an interior of the bending die for the high-energy radiation that enters through the first beam entry opening, wherein the subsequent beam path extends in the interior of the tool base body parallel to the longitudinal axis of the groove-like bending recess or a bending line of a workpiece from the first beam entry opening to a beam transfer opening on the second surface of the bending die, wherein said first surface of the bending die and said second surface of the bending die are oriented transversely to the longitudinal axis of the groove-like bending recess, contacting the contact surface of the tool base body via the workpiece to be bent by a bending punch, wherein the at least one beam exit opening in the groove-like bending recess extending along the groove-like bending recess is for discharging high-energy radiation onto the workpiece bearing against the contact surface for heating a deformation zone of the workpiece, introducing at least one high-energy concentrated radiation beam from a radiation source into the tool base body through the first beam entry opening, the radiation source being arranged outside the tool base body, and at least temporally and stationarily deflecting, expanding, and guiding at least a portion of the at least one high-energy concentrated radiation beam onto the workpiece through the beam exit opening to the deformation zone of the workpiece by at least one beam affecting arrangement fixedly arranged within the tool base body in the course of the beam path, wherein the at least one high-energy concentrated radiation beam is expanded into a planar fanned beam that hits the deformation zone of the workpiece parallel to the longitudinal axis of the groove-like bending recess or the bending line of the workpiece, and wherein the planar fanned beam locally heats the workpiece.