Method of making a hardened motor-vehicle part of complex shape

Details Method of making a hardened motor-vehicle part of complex shape Method of making a hardened motor-vehicle part of complex shape

2006-02-28

2006-02-28

Tolan, Ed (Department: 3725)

Metal deforming

With temperature modification of tool or of specified...

C072S038000, C072S047000, C072S364000, C072S342940, C148S648000

Reexamination Certificate

active

07004004

ABSTRACT:
A hardened steel part of complex shape is made from a workpiece by first heating the workpiece to an annealing temperature. Then, while the workpiece is still at the annealing temperature, the workpiece is rapidly deformed by a machine into an intermediate shape. The deformed workpiece is then moved from the machine to a press, and, while the workpiece is still at the annealing temperature, it is deformed in the press to the complex shape and then held in the press to harden the workpiece.

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