| 刘静,付扬帆,周富.汽车用后稳定杆失效分析[J].装备环境工程,2019,16(11):79-83. LIU Jing,FU Yang-fan,ZHOU Fu.Failure Analysis of Rear Stabilizer Rod for Automobile[J].Equipment Environmental Engineering,2019,16(11):79-83. |
| 汽车用后稳定杆失效分析 |
| Failure Analysis of Rear Stabilizer Rod for Automobile |
| 投稿时间：2019-08-14 修订日期：2019-09-06 |
| DOI：10.7643/issn.1672-9242.2019.11.015 |
| 中文关键词: 后稳定杆 失效分析 折叠 疲劳开裂 |
| 英文关键词:rears stabilizer rod failure analysis folding defect fatigue fracture |
| 基金项目: |
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| Author | Institution |
| LIU Jing | Southwest Technology and Engineering Research Institute, Chongqing 400039, China;Chongqing Engineering Research Center for Environmental Corrosion and Protection, Chongqing 400039, China |
| FU Yang-fan | Southwest Technology and Engineering Research Institute, Chongqing 400039, China;Chongqing Engineering Research Center for Environmental Corrosion and Protection, Chongqing 400039, China |
| ZHOU Fu | Southwest Technology and Engineering Research Institute, Chongqing 400039, China;Chongqing Engineering Research Center for Environmental Corrosion and Protection, Chongqing 400039, China |
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| 中文摘要: |
| 目的 研究汽车用后稳定杆断裂失效原因。方法 通过金相组织、力学性能分析、材质分析、电镜扫描分析测试手段，对汽车用后稳定杆断裂失效原因进行分析。结果 断裂的车用后稳定杆裂纹源处表面存在原始轧制折叠缺陷，在台架试验过程中引起应力集中，为疲劳裂纹的萌生提供了有利条件，导致短时间内疲劳断裂。结论 通过提高原材料线材入厂采购质量，加强轧制工艺过程控制，加大探伤排查力度，提前控制排除缺陷产品，有效杜绝了后稳定杆断裂失效情况再次发生。 |
| 英文摘要: |
| Objective To investigate the fracture failure reasons of rear stabilizer rod for automobile. Methods The failure reasons of rear stabilizer rod for automobile were analyzed from metallographic structure, mechanical property and material through SEM. Results The folding defect occurred in the rolling process at the crack source of the rear stabilizer rod for automobile, which caused stress concentration during the stand test. The folding defect provided favorable conditions for generation of fatigue crack, resulting in fatigue fracture in a short time. Conclusion By improving the quality of the raw material wire purchased by plant, strengthening the rolling process control, increasing the intensity of inspection, as well as controlling and eliminating defective products in advance, the failure of rear stabilizer rod for automobile was effectively eliminated. |
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