发明授权
- 专利标题: Method for manufacturing a drum brake shoe
- 专利标题(中): 鼓式制动蹄制造方法
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申请号: US699025申请日: 1991-05-13
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公开(公告)号: US5137203A公开(公告)日: 1992-08-11
- 发明人: Donald D. Johannesen
- 申请人: Donald D. Johannesen
- 申请人地址: NJ Morristown
- 专利权人: Allied-Signal Inc.
- 当前专利权人: Allied-Signal Inc.
- 当前专利权人地址: NJ Morristown
- 主分类号: B21D53/34
- IPC分类号: B21D53/34 ; B23K9/00 ; B23K11/06 ; F16D65/06 ; F16D65/08
摘要:
A drum brake shoe is provided by fine blanking the brake shoe web (50) so that the web (50) has radially extending weld projections (60) at a circumferential edge (52), with a radial recess (62) disposed on each side of a weld projection (60). As a brake shoe rim (40) is fed through a welding and forming mechanism (65), a flat surface (41) of the rim (40) engages a radially extending weld projection (60) and a weld is effected. Welding wheels (90, 100) of the mechanism (65) rotate to bend the rim (40) and engage the rim (40) with the next weld projection as a weld is effected between the rim (40) and web (50). The manufacturing method will provide a more consistent welding process that will result in a higher percentage of quality welds and less scrappage.
公开/授权文献
- US4596234A Fireplace damper system viewer, opener and closer 公开/授权日:1986-06-24
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