载重汽车用板簧支架断裂失效原因分析  

Failure Cause Analysis of Plate Spring Support for Truck

作　　者：王成亮 史丽娜 WANG Chengliang;SHI Lina(Henan Aoudi Casting Co.,Ltd.,Hebi 456750,Henan China)

机构地区：[1]河南欧迪艾铸造有限公司,河南鹤壁456750

出　　处：《铸造工程》2024年第S02期51-54,共4页Foundry Engineering

摘　　要：失效分析是解决质量问题的重要环节。针对ADI材料重卡汽车用板簧支架发生断裂失效的因素,从板簧支架几何形状的设计、本体显微组织和力学性能、铸造缺陷和强度仿真等方面分析故障原因。结果表明,ADI材料满足汽车板簧支架的性能要求,发生断裂的主要原因是结构设计R角过小导致应力过于集中所致。Failure analysis is an important part of solving quality problems.According to the failure factors of ADI leaf spring support for heavy trucks,the failure causes were analyzed from the aspects of geometric shape design,body microstructure and mechanical properties,casting defects and strength simulation.The results show that ADI material can meet the performance requirements of automobile leaf spring support,and the main reason of fracture is that the stress is too concentrated due to the small R-angle of structural design.

关 键 词：板簧支架 ADI 断裂 R圆角 应力 

分 类 号：TG245[金属学及工艺—铸造]