汽车后扭力梁开裂原因分析及解决措施

存后扭力梁开发过程中，扭力梁本体和扭力梁加强件之间焊缝的收弧引出段在扭转疲劳试验中发生早期开裂，对早期开裂原因进行了分析，制定了解决措施，满足了产品质量要求。

Cracking analysis of automotive rear torsion beam and solutions

During developing process of rear torsion beam products,the end arc extract section of welding seam occurs early crack during torsion endurance test between torsion beam and torsion beam reinforcement, analysis the cause of early crack,makes the solutions by analysis,satisfy the quality requirement of product.