发明名称 Internal high pressure forming of hollow profile with integral web uses pressurized fluid to form profile and align webs
摘要 A fluid is introduced at high pressure into the profile for forming. The integral web (6) is aligned during the forming process, or immediately before or after forming of the profile. Both forming and aligning are carried out using the fluid, which may be subjected to high pressures. The web has integral pressure compensation bores (16), for pressure compensation between chambers (3,5) of multi-chambered hollow profiles (1). The web is loaded by metallic alignment elements (14,15), and these are charged by the fluid via elastomer elements (9,10).
申请公布号 DE19909929(A1) 申请公布日期 2000.09.14
申请号 DE1999109929 申请日期 1999.03.06
申请人 AUDI AG 发明人 HOFFMANN, ALEXANDER;ZUBER, ARMIN;LEITERMANN, WULF
分类号 B21D3/00;B21D26/02;B21D26/045;(IPC1-7):B21D26/02 主分类号 B21D3/00
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