Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hans-Jürgen Knaup0
Christian Hielscher0
Date of Patent
May 19, 2009
0Patent Application Number
114523030
Date Filed
June 13, 2006
0Patent Primary Examiner
Patent abstract
A method of hot-shaping and hardening a hot steel workpiece that is at or above its AC3 temperature. The method has the steps of positioning the hot workpiece between confronting faces of a lower die and an upper die, providing a coolant bath having a liquid level above at least a portion of the face of the lower die, and pressing the hot workpiece with the upper die down against the lower die so as to both deform the workpiece so that it conforms to the shapes of the faces and that it is at least partially immersed in the bath,
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