发明名称 FORMING TOOL AND METHOD FOR HOT FORMING AND PARTIALLY PRESS HARDENING A WORKPIECE MADE OF SHEET STEEL
摘要 A forming tool and a method for hot forming and partially press hardening a workpiece, wherein the workpiece is heated prior to forming and is subsequently hot formed in a forming tool including a die, a punch, and a cooling device. When the forming tool is closed, the contact between the workpiece and the contact surfaces of the die and the punch of the forming tool is interrupted by moving apart a movable die part and a movable punch part. The die includes a first die part and at least one second die part which is movable relative to the first die part. The punch includes a first punch part and at least one second punch part which is movable relative to the first punch part. The at least one movable second die part and the at least one movable second punch part interact with an opening device.
申请公布号 US2013205863(A1) 申请公布日期 2013.08.15
申请号 US201113810992 申请日期 2011.07.06
申请人 LOESCH SIEGFRIED;GMF UMFORMTECHNIK GMBH 发明人 LOESCH SIEGFRIED
分类号 B21D22/02 主分类号 B21D22/02
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