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所属单位：材料科学与技术学院
发表刊物：Hanjie Xuebao
摘要：Laser-MIG hybrid welding (LMHW), which combines the advantages of both laser and arc independent heat sources as well as greatly avoids their disadvantages, is a new welding method with great application prospects in the fields of automobiles, ships, petrochemicals, etc. The differences in microstructure and hardness distribution of the dissimilar steel welded joints of 25CrMo4 and 33MnCrB5-2 by LMHW and MIG welding were investigated. The results show that the effect of LMHW was better than that of MIG welding, performing an uniform and full weld seam. LMHW joints exhibited higher overall hardness, finer microsfructure in welding joint centre and better joint quality than MIG welding joints. Specifically, the overall hardness of welded joints of LMHW was 30% higher than MIG welding. © 2019, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
ISSN号：0253-360X
是否译文：否
发表时间：2019-02-25
合写作者：周曙君,吴友发,杨毅,刘旭
通讯作者：占小红