发明名称 Process of rolling automobile rims
摘要 The invention relates to a method of rolling tire rim blanks from flat metal strips obtained by unwinding strip material from a coil which is cut into strips of desired lengths which are then rolled into a circular shape by anvil rolls cooperating with bodily moveable bending rolls producing a controlled flat portion on the leading end of the strip prior to rolling and another controlled flat portion on the trailing end of the strip following the rolling.
申请公布号 US4304114(A) 申请公布日期 1981.12.08
申请号 US19780897915 申请日期 1978.04.19
申请人 F. J. LITTELL MACHINE COMPANY 发明人 WIIG, CHESTER M.
分类号 B21D53/30;B21H1/10;(IPC1-7):B21H1/10;B21D5/14 主分类号 B21D53/30
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