文献类型：期刊文献

英文题名：Effect of Hybrid Laser Arc Welding on the Microstructure and Mechanical and Fracture Properties of 316L Sheet Welded Joints

作者：Xie, Linyi[1,2];Shi, Wenqing[1];Wu, Teng[1];Gong, Meimei[1];Cai, Detao[2];Han, Shanguo[2];He, Kuanfang[3]

机构：[1]Guangdong Ocean Univ, Sch Elect & Informat Engn, Zhanjiang 524088, Peoples R China;[2]Guangdong Acad Sci, China Ukraine Inst Welding, Guangdong Prov Key Lab Adv Welding Technol, Guangzhou 510650, Peoples R China;[3]Foshan Univ, Sch Mechatron Engn & Automat, Foshan 528000, Peoples R China

年份：2022

卷号：12

期号：12

外文期刊名：METALS

收录：SCI-EXPANDED(收录号：WOS:000903079900001)、、Scopus(收录号：2-s2.0-85144944396)、WOS

基金：This work was supported by the National Natural Science Foundation of China (Grant No. 62073089), the Foundation Project of Guangdong Province (2022A1515011118), and the GDAS' Project of Science and Technology Development (2022GDASZH-2022010203).

语种：英文

外文关键词：hybrid laser arc welding; the molten pool splashes; microstructure; tensile strength

外文摘要：To explore the influence of different welding modes on the properties of 316L thin-plate welded joints, a new type of laser arc compound gun head similar to a coaxial one was used in this experiment. A high-speed camera was used to record the welding process and analyze the droplet splash behavior of the molten pool. The microstructure, microhardness change, and tensile test results of welded joints under different welding modes were analyzed. The results showed that laser welding (LW) is more prone to molten pool splash than hybrid laser arc welding (HLAW). The HLAW pool area was significantly increased compared with that of LW. The HLAW joint microstructure was more uniform than that of LW, which can improve the microhardness of welded joints. HLAW improved the tensile properties of the joint, with the maximum tensile strength of the joint increasing from 433 to 533 MPa. This test can provide guidance for the HLAW process.