发明名称 Method of fabricating a projection for resistance welding
摘要 A method of fabricating a projection for resistance welding contemplates fabricating the projection at the workpiece by plastic deformation of the basic material and dimensionally exactly shaping the projection by compression molding of the flowable metal between a punch and die of a tool.
申请公布号 US4850214(A) 申请公布日期 1989.07.25
申请号 US19840668288 申请日期 1984.11.05
申请人 OPPRECHT, PAUL 发明人 OPPRECHT, PAUL;OPPRECHT, JUERG
分类号 B23K11/14 主分类号 B23K11/14
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