发明名称 Method for forming a hollow workpiece using a snake tool
摘要 A tool device for supporting one or more walls of an elongated hollow member located in a recess of a die for bending said member over a surface of the die while said member is in a stretched condition. The tool device comprises a plurality of segments held together in a snake-like arrangement by at least one cable extending through the segments. Opposed ends of the cable are provided with means for connecting the cable to opposed clamp assemblies of stretch bend apparatus.
申请公布号 US5323631(A) 申请公布日期 1994.06.28
申请号 US19930048806 申请日期 1993.04.16
申请人 ALUMINUM COMPANY OF AMERICA 发明人 WEYKAMP, ROBERT E.;EVERT, ROBERT P.
分类号 B21D9/03;B21D25/02;(IPC1-7):B21D11/02 主分类号 B21D9/03
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