DEVICE FOR FORMING METALS

摘要

The invention relates to a device for processing a workpiece, said device including the following features: a punch on one side of the workpiece, a die on the opposite side of the workpiece, and a conductive electric heating system for generating an electric current that flows through the workpiece starting from a component situated on one side of the workpiece outside of the punch to a component situated on the opposite side of the workpiece outside of the die.

主权项

1. A device for processing a workpiece, the device comprising:
a punch on one side of the workpiece; a die on a side of the workpiece opposite the punch; a first component situated on one side of the workpiece outside of the punch, the first component a sleeve made of an electrically well-conducting material surrounding the punch and operable to be placed on the workpiece, the sleeve serving as a blank holder and at the same time as an electrode; a second component situated within the die on an opposite side of the workpiece, the second component a counterholder made of an electrically well-conducting material insertable into a bore of the die, the counterholder operable to be displaced downward corresponding to the downward movement of the punch; and a conductive electric heating system for generating an electric current which flows one of completely and predominantly through the workpiece, starting from the first component to the second component.