发明名称 Method and apparatus for checking sheet metal forms
摘要 A method of manufacturing a workpiece is provided. The method includes forming a sheet of material having a predetermined shape. A physical marker is then formed on the sheet of material. The physical marker is formed to indicate a position on the sheet of material, where the sheet of material is to be bent.
申请公布号 US2003051527(A1) 申请公布日期 2003.03.20
申请号 US20010955650 申请日期 2001.09.17
申请人 WONG DANIEL T. 发明人 WONG DANIEL T.
分类号 B21D5/02;B21D31/00;(IPC1-7):B21D31/00 主分类号 B21D5/02
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