弹簧早期失效分析及工艺改进

Failure Analysis for Spring and Process Improvement

高载荷商用车制动蹄回位弹簧属于安全组件之一,在车辆运行过程中抗拉性能和使用寿命至关重要。介绍了制动蹄回位弹簧断裂的形态,经过断口分析和工艺排查,找到早期失效的原因,通过工艺改进提高拉簧的使用寿命,保证使用安全性,为生产提供参考。

The break shoe return spring for high load commercial vehicle belongs to the security components.The performance and service life is very important.This paper introduces the spring’s fracture patterns,After the section analysis and troubleshoot,find the failure cause,through process improvement,make the life longer and safer,provides some reference for spring production.