锌箔对不锈钢和镁合金焊接接头的质量影响OA
The influence of zinc layer on the quality of stainless steel and magnesium alloy welded joints
以不同厚度的锌箔作为中间层将镁合金与不锈钢通过激光焊进行焊接.利用光学显微镜、扫描电子显微镜分析了各区域的相组成,并测试了接头硬度分布情况.研究结果表明:添加0.1mm厚的锌箔层时,焊接接头性能最好,在焊接功率3.8kW、焊接频率9.0Hz、焊接速度0.8mm/s、保护气流量7L/min下,可以获得细小均匀的晶粒结构,不锈钢、镁、锌的最大硬度分别为296.4HV、72.3HV、110.3HV.研究结果对于促进镁合金与不锈钢异种材料连接具有重要的理论意义和实用价值.
In this study,magnesium alloy and stainless steel were laser welded using zinc sheets of varying thicknesses as the interlayer.The phase composition of each region was characterized through optical microscopy and scanning electron microscopy,while the hardness distribution across the weld joint was evaluated via microhardness testing.A zinc layer thickness of 0.1mm yielded optimal weld joint performance.Under welding conditions of 3.8kW power,9.0Hz frequency,0.8mm/s speed,and a shielding gas flow rate of 7L/min,a fine and uniform grain structure was achieved.The maximum hardness values for stainless steel,magnesium,and zinc were 296.4HV,72.3HV,and 110.3HV,respectively.This research holds significant theoretical and practical value for advancing the welding of magnesium alloy and stainless steel dissimilar materials.
戴军;李笑;周嘉玲;郝妮娜;黄泽;于学勇
上海第二工业大学智能制造与控制工程学院 上海 201209||常熟理工学院汽车工程学院 江苏常熟 215500江苏耀坤液压股份有限公司 江苏江阴 214400常熟理工学院汽车工程学院 江苏常熟 215500常熟理工学院汽车工程学院 江苏常熟 215500常熟理工学院汽车工程学院 江苏常熟 215500常熟理工学院汽车工程学院 江苏常熟 215500
异种材料焊接激光焊接微观组织力学性能
dissimilar material weldinglaser weldingmicrostructuremechanical properties
《金属加工（热加工）》 2026 (1)
74-78,5
江苏省大学生创新创业训练计划项目(202410333081Y).
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