发明名称 DIE AND PUNCH FOR FORMING A JOINT THEREBETWEEN
摘要 A die (24) and punch (32) is employed to form a joint (74) between at least two sheets of material (70 and 72). The preferred embodiment die (24) has a shield (54) surrounding an anvil (52). This shield (54) has at least one aperture (120) extending therethrough.
申请公布号 CA2180833(C) 申请公布日期 2004.09.14
申请号 CA19942180833 申请日期 1994.07.29
申请人 BTM CORPORATION 发明人 SAWDON, EDWIN GEORGE
分类号 B23P11/00;B21D39/03;B21J15/02;B21K5/20;(IPC1-7):B23P11/00;B23Q1/00 主分类号 B23P11/00
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