摘要
介绍汽车支撑配件在使用中因振动而产生疲劳失效现象及目前国内相关研究的现状。通过对典型的支撑件试样采用定频试验的方法进行振动疲劳试验,得出系列的实验数据,结合试样的浇注温度和浇注时间进行分析,得出发生疲劳断裂失效的主要原因为其内部存在孔洞所致,并有针对性地对支撑配件在压铸生产过程提出了相应的改进措施。
The fatigue failure phenomenon caused by vibration in the use of auto support parts and the current situation of domestic related research were introduced.Vibration fatigue tests on the support parts were performed by using the fixed frequency test method,and a series of experimental data were obtained.Combined with the pouring temperature and pouring time of the samples,it was analyzed that the main cause of fatigue fracture failure was the existence of holes inside.As a result,corresponding improvement measures is proposed for support parts in the die-casting production process.
作者
林展祺
高康
王国芳
周亦泉
LIN Zhanqi;GAO Kang;WANG Guofeng;ZHOU Yiquan(Guangdong Zhaoqing Supervision&Inspection Institute of Quality and Metrology,Zhaoqing Guangdong 526060,China)
出处
《汽车零部件》
2021年第5期49-53,共5页
Automobile Parts
关键词
汽车支撑配件
疲劳裂纹
浇注温度
浇注时间
Auto support parts
Fatigue crack initiation
Pouring temperature
Pouring time
