低合金高强钢焊丝熔滴过渡形态及飞溅分析研究  

Study on Droplet Transition Mode and Spatter Analysis of High-Strength Low-Alloy Steel Welding Wire

作　　者：喻红梅[1] 周红梅[1] 王钰寒 史舒驿茗 胡刘欢 罗元祺 邵甄胰[1] 刘海琼[1] 谭洪涛 YU Hongmei;ZHOU Hongmei;WANG Yuhan;SHI Shuyiming;HU Liuhuan;LUO Yuanqi;SHAO Zhenyi;LIU Haiqiong;TAN Hongtao(School of Materials and Environmental Engineering,Chengdu Technological University,Chengdu 611730,China;Chengdu Aige Technology Co.,LTD.,Chengdu 611730,China)

机构地区：[1]成都工业学院材料与环境工程学院,成都611730 [2]成都艾格科技有限责任公司,成都611730

出　　处：《成都工业学院学报》2024年第3期10-14,共5页Journal of Chengdu Technological University

基　　金：四川省科技成果转移转化示范项目(2023ZHCG0038);四川省高等教育人才培养质量和教学改革项目(JG2021-1403);四川省大学生创新创业项目(S202311116049);成都工业学院科研项目(2023ZR011);四川省国际科技创新合作项目(2023YFH0035)。

摘　　要：利用高速摄像系统对自主研发低合金高强钢焊丝焊接过程的熔滴进行拍摄,分析整个焊接过程中的熔滴过渡模式与飞溅产生机理,研究合金元素与焊接热输入对焊丝的熔滴过渡形态产生的影响。试验结果表明,焊接过程中出现了滴状过渡、短路过渡、射滴过渡3种熔滴过渡模式与电弧力引起的飞溅、爆炸飞溅、熔池偏飞、颗粒偏飞4种飞溅形式。合金元素含量改变了熔滴的物理化学性质,焊接热输入改变熔滴的受力与熔滴熔池形态,从而改变了焊接过程中熔滴过渡与飞溅形式。通过综合比较分析,发现#3焊丝的焊接过程电弧最稳定,飞溅最小。The droplets in welding process of four kinds of low-alloy high-strength steel welding wires were photographed by high speed camera system.The droplet transition mode and splashing mechanism in the whole welding process were analyzed.The effects of alloy elements and welding heat input on the droplet transition mode of welding wires were studied.The experimental results show that there are three kinds of droplet transition mode,droplet transition,short circuit transition,and jet drop transition,and four kinds of spatter forms caused by arc force,splashing,explosion splashing,molten pool deviation and particle deviation in the welding process.The content of alloy elements changes the physical and chemical properties of droplets,and the welding heat input changes the force and the shape of the molten pool,thus changing the droplet transition and spatter form in the welding process.Through comprehensive comparison and analysis,it is found that the arc of#3 welding wire is the most stable and the least splash in the welding process.

关 键 词：焊丝 电弧物理特性 熔滴过渡 飞溅机理 

分 类 号：TG403[金属学及工艺—焊接]