| 某船圆锥滚子轴承保持架裂纹失效分析 |
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| 引用本文： | 蒋蕾,卫旭峰,王德春.某船圆锥滚子轴承保持架裂纹失效分析[J].世界海运,2004,27(3):44-45. |
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| 作者姓名： | 蒋蕾 卫旭峰 王德春 |
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| 作者单位： | 1. 大连重工·起集团有限公司,辽宁,大连,116021
2. 大连海事大学,辽宁,大连,116026 |
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| 摘 要： | 从机械构件失效痕迹学角度,对轴承保持架制造加工过程的宏观、微观痕迹特征进行了细致的观察与分析,结果表明,一次拉深成形过程中,在保持架内凹根部萌生了周向微裂纹,冲裁侧孔时由于凸模刃口过度磨损变钝致使冲裁力过大,引起了裂纹迅速扩展,导致了保证架开裂失效。
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| 关 键 词： | 轴承 冲压加工 失效分析 |
| 文章编号： | 1006-7728(2004)03-0044-02 |
| 修稿时间： | 2004年3月26日 |
On Process Crack Trace for a Maintaining-frame of the Circular Cone Bearing |
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| Abstract: | The macro-micro trace characteristics produced by processing the maintaining-frame were observed and analyzed in detail in terms of the failure trace of the mechanical component. The results show that the circular micro-cracks produced on the root in the concave of the maintaining-frame in the process of th efirst draw-shaping. The blunting of the edge on the convex of the mould resulting from the over-wear would make the punching force greater and the cracks extend rapidly to result in the fracture failure of the maintaining-frame. |
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| Keywords: | bearing punching process failure analysis |
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