发明名称 METHOD OF MANUFACTURE
摘要 In a method of manufacturing a member having a cross-sectional area which varies along its length, the member is produced by filling a cavity 6 in a die 5 with powdered material and compressing it. The die includes portions 8, 9 and 10 at different heights around the opening 7 so as to enable the amount of powdered present in the cavity to be varied along its length without compromising the shape of the final item to be manufactured.
申请公布号 US5122311(A) 申请公布日期 1992.06.16
申请号 US19910748932 申请日期 1991.08.23
申请人 MARCONI ELECTRONIC DEVICES LIMITED 发明人 SIMS, ROBERT F.;LYONS, KEITH B.
分类号 B22F3/02;B29C43/00;B29C43/36;B30B11/00;B30B11/02;B30B11/04 主分类号 B22F3/02
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