发明名称 Method for selectively forming (plastic working) at least one region of a sheet metal layer made from a sheet of spring steel, and a device for carrying out this method
摘要 A method for selectively forming at least one region of a gasket sheet metal layer made of a spring steel, wherein, for the purposes of facilitating the forming process, the region of the sheet metal layer that is to be formed is heated up inductively for reducing the hardness thereof and the electromagnetic alternating field serving for the inductive heating process is concentrated onto the region that is to be formed, wherein the application time of the electromagnetic alternating field on each part of said region of the sheet metal layer that is to be formed amounts to at most approximately 2 seconds.
申请公布号 US2009235715(A1) 申请公布日期 2009.09.24
申请号 US20090381389 申请日期 2009.03.10
申请人 ELRINGKLINGER AG 发明人 WERZ ULRICH
分类号 B21D37/16 主分类号 B21D37/16
代理机构 代理人
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