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公开(公告)号:US3891367A
公开(公告)日:1975-06-24
申请号:US35842673
申请日:1973-05-08
申请人: OLIVETTI & CO SPA
发明人: SIGNORA MAURIZIO
CPC分类号: B22F5/085 , B22F5/08 , B22F2998/00 , B30B11/02 , Y10T29/49467
摘要: Helical gears are formed by powder compression by means of a die having a toothed internal profile corresponding to that of the gear to be molded, a movable punch having an externally toothed portion adapted to enter the die to compress the powder, and an internally toothed guide means to guide the portion with a helical motion into the die to cause the external toothing of the portion to mate correctly with the internal toothing of the die.
摘要翻译: 螺旋齿轮通过具有对应于待模制齿轮的齿形内部轮廓的模具的粉末压缩形成,具有适于进入模具以压缩粉末的外齿部分的可动冲头,以及内齿导向件 用于将具有螺旋运动的部分引导到模具中以使部分的外齿与模具的内部齿部正确配合的装置。