Simulation analysis of ultrasonic detection for resistance spot welding based on COMSOL Multiphysics

被引：0
作者：
Jing Liu
Guocheng Xu
Lei Ren
Zhihui Qian
Luquan Ren
机构：
[1] Jilin University,Key Laboratory of Bionic Engineering, Ministry of Education
[2] Jilin University,Key Laboratory of Automobile Materials of Ministry of Education and Department of Materials Science & Engineering
[3] University of Manchester,School of Mechanical, Aerospace and Civil Engineering
来源：
The International Journal of Advanced Manufacturing Technology | 2017年 / 93卷
关键词：
Simulation analysis; Ultrasonic detection; Resistance spot welding; Porosity defect;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The simulated calculation is carried out on the ultrasonic detection process for stainless steel resistance spot welding by the finite element technology. It reveals the ultrasonic propagation characteristics and regularity in the inner of the spot welds, and provides a theoretical basis for selecting the Am as a characteristic parameter to represent the fusion state of the spot weld in the actual ultrasonic detection. Then the ultrasonic detection of spot welds with the presence of the porosity defect which easily appears is simulated, and the effect of the porosity on the ultrasonic propagation characteristics is studied. It is found that the ultrasonic reflection and transmission occur at the porosity defect, and finally the correctness and validity of the simulation and the model are verified by the experimental method.
引用
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页码：2089 / 2096
页数：7
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