发明授权
- 专利标题: Method of manufacturing ejector pin sleeves
- 专利标题(中): 制造顶针套筒的方法
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申请号: US858744申请日: 1997-05-19
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公开(公告)号: US5730812A公开(公告)日: 1998-03-24
- 发明人: David E. Lawrence
- 申请人: David E. Lawrence
- 申请人地址: MI Madison Heights
- 专利权人: D-M-E Company
- 当前专利权人: D-M-E Company
- 当前专利权人地址: MI Madison Heights
- 主分类号: B23P15/00
- IPC分类号: B23P15/00 ; B29C33/38 ; B29C45/40 ; C21D9/08 ; B29C1/00 ; B29C7/00
摘要:
A method is disclosed for manufacturing ejector sleeves from tubular stock. In particular, the method includes the following steps or operations: (a) cutting the tube stock to length, (b) enlarging a portion of the inside diameter of the sleeve to provide a clearance diameter, (c) rough-sizing a close-fitting inner diameter, (d) optionally semi-finishing the outside diameter of the sleeve, (e) hardening and straightening the sleeve, (f) final sizing of the outside diameter while maintaining concentricity with the inside diameters, (g) finishing the end face of the sleeve adjacent the close-fitting diameter, (h) final sizing of the close-fitting inner diameter while maintaining concentricity with the outside diameter, (i) forming a head on the sleeve by heating and forging to a predetermined size, (j) optional annealing and refinishing of the head for purposes of hardness or dimensional modification, or improving surface finish.
公开/授权文献
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