发明名称 Device for cold forming of ferrous and non-ferrous metal sections
摘要 PCT No. PCT/EP87/00284 Sec. 371 Date Mar. 18, 1988 Sec. 102(e) Date Mar. 18, 1988 PCT Filed Jun. 2, 1987 PCT Pub. No. WO87/07537 PCT Pub. Date Dec. 17, 1987.In the process for the cold forming of ferrous and nonferrous metal sections, pretensioning is applied to the initially essentially straight metal section, which is clamped at both ends. Next, the tensioned metal section is bent in a rotating bending tool. In order to achieve three-dimensional forming of the metal section, the bending tool effects a controlled movement in all three spatial axes, whereby the metal section is pressed, with a backlash-free guide system, at least in the forming region against the bending tool and guided by positive engagement.
申请公布号 US4941338(A) 申请公布日期 1990.07.17
申请号 US19880180865 申请日期 1988.03.18
申请人 SPAETH GMBH & CO KG 发明人 SPAETH, WALTER
分类号 B21D11/02;B21D7/025;B21D7/04 主分类号 B21D11/02
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