Yiwen Ren, Junhui Tao, Jie Li, Xinqi Chen, Lin Zhang, Chuanhui Wang, Haiqin Jin, Hongyan Qi, Zhu A. Wang, X. Xie, J. Pan
{"title":"Mechanical Properties of Laser Welded Joint of Copper and Steel Dissimilar Metals","authors":"Yiwen Ren, Junhui Tao, Jie Li, Xinqi Chen, Lin Zhang, Chuanhui Wang, Haiqin Jin, Hongyan Qi, Zhu A. Wang, X. Xie, J. Pan","doi":"10.1051/wujns/2023281068","DOIUrl":null,"url":null,"abstract":"In this research project, copper and stainless steel were connected by two laser welding methods: straight seam welding and swing welding. Then, electronic tensile test machine, X-ray diffractometer, scanning electron microscope and metallographic microscope were used to analyze the tensile properties, macroscopic and microscopic structure morphology and phase of the welded joint. Based on the experimental results, we determined that the strength of the straight seam welded joint was higher. Because of the intermetallic compound near the weld in the swing welding process, it leads to stress concentration, crack cracking and strength reduction. In addition, the oscillating laser beam also leads to the disorderly direction of columnar crystal and coarse structure, which makes the joint strength decrease.","PeriodicalId":23976,"journal":{"name":"Wuhan University Journal of Natural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wuhan University Journal of Natural Sciences","FirstCategoryId":"1093","ListUrlMain":"https://doi.org/10.1051/wujns/2023281068","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Multidisciplinary","Score":null,"Total":0}
引用次数: 0
Abstract
In this research project, copper and stainless steel were connected by two laser welding methods: straight seam welding and swing welding. Then, electronic tensile test machine, X-ray diffractometer, scanning electron microscope and metallographic microscope were used to analyze the tensile properties, macroscopic and microscopic structure morphology and phase of the welded joint. Based on the experimental results, we determined that the strength of the straight seam welded joint was higher. Because of the intermetallic compound near the weld in the swing welding process, it leads to stress concentration, crack cracking and strength reduction. In addition, the oscillating laser beam also leads to the disorderly direction of columnar crystal and coarse structure, which makes the joint strength decrease.
期刊介绍:
Wuhan University Journal of Natural Sciences aims to promote rapid communication and exchange between the World and Wuhan University, as well as other Chinese universities and academic institutions. It mainly reflects the latest advances being made in many disciplines of scientific research in Chinese universities and academic institutions. The journal also publishes papers presented at conferences in China and abroad. The multi-disciplinary nature of Wuhan University Journal of Natural Sciences is apparent in the wide range of articles from leading Chinese scholars. This journal also aims to introduce Chinese academic achievements to the world community, by demonstrating the significance of Chinese scientific investigations.