不锈钢单侧磁控电阻点焊工艺研究
|
摘要
为提高单侧焊接接头的质量,减少焊接缺陷,基于传统双侧轴向磁化装置,设计了一种适用于单侧电阻点焊设备的单侧径向充磁磁控装置。通过与传统电阻点焊进行对比性实验,研究了传统焊点与单侧磁控焊点随焊接电流的变化规律,揭示了单侧磁控电阻点焊装置对焊点熔核形貌、熔核尺寸、微观组织、力学性能等方面的作用机制及改善效果,验证了单侧磁控电阻点焊工艺的可行性。
In order to improve the single-side welding joint quality and reduce the welding defects, a single-side radial magnetizing device for single-side resistance spot welding equipment was designed based on the traditional double-side axial magnetizing device. Compared with the traditional resistance spot welding,the variations of traditional resistance spot welding joints and magnetic assisted resistance welding joints with welding current were studied. The mechanism and effectivenesses of single-side magnetic assisted resistance spot welding on nugget morphology, nugget size, microstructure and mechanical properties were revealed,and the feasibility of single-side magnetic assisted resistance spot welding process was verified.
In order to improve the single-side welding joint quality and reduce the welding defects, a single-side radial magnetizing device for single-side resistance spot welding equipment was designed based on the traditional double-side axial magnetizing device. Compared with the traditional resistance spot welding,the variations of traditional resistance spot welding joints and magnetic assisted resistance welding joints with welding current were studied. The mechanism and effectivenesses of single-side magnetic assisted resistance spot welding on nugget morphology, nugget size, microstructure and mechanical properties were revealed,and the feasibility of single-side magnetic assisted resistance spot welding process was verified.
引文
[1]郝春梅,许晓阳.轨道客车不锈钢化[J].铁路采购与物流,2008,3(3):34-35.HAO Chunmei,XU Xiaoyang.Stainless Steel for Railway vehicles[J].Railway Purchasing and Logistics,2008,3(3):34-35.
[2]乔俊杰,谭劲.不锈钢的电阻点焊[J].电焊机,1991(5):23-26.QIAO Junjie,TAN Jin.Resistance Spot Welding of Stainless Steel[J].Electric Welding Machine,1991(5):23-26.
[3]丁成钢,史春元,都本刚,等.SUS301L不锈钢电阻点焊工艺研究[J].热加工工艺,2006,35(3):33-34.DING Chenggang,SHI chunyuan,DU Bengang,et al.Study on Spot Welding Process of Stainless Steel SUS301L[J].Hot Working Technology,2006,35(3):33-34.
[4]万佳林.SUS301L不锈钢点焊工艺及接头组织与性能[D].长春:吉林大学,2014.WAN Jialin.Resistance Spot Welding Process and the Microstructures and Properties of SUS301LStainless Steel Joints[D].Changchun:Jilin University,2014.
[5]罗震,梁建超,李洋,等.马氏体不锈钢电阻点焊接头回火脉冲工艺研究[J].天津大学学报(自然科学与工程技术版),2018,51(2):205-209.LUO Zhen,LIANG Jianchao,LI Yang,et al.Tempering Pulse Process of Martensitic Stainless Steel[J].Journal of Tianjin University(Science and Technology),2018,51(2):205-209.
[6]沈琦.高强钢磁控电阻点焊机理与工艺方法研究[D].上海:上海交通大学,2012.SHEN Qi.Study on Mechanism and Process in Magnetically Assisted Resistance Spot Welding of High Strength Steels[D].Shanghai:Shanghai Jiao Tong University,2012.
[7]YAO Q,LUO Z.Effect of Electromagnetic Stirring on the Microstructures and Mechanical Properties of Magnesium Alloy Resistance Spot Weld[J].Materials&Design,2014,63:200-207.(编辑王艳丽)
[2]乔俊杰,谭劲.不锈钢的电阻点焊[J].电焊机,1991(5):23-26.QIAO Junjie,TAN Jin.Resistance Spot Welding of Stainless Steel[J].Electric Welding Machine,1991(5):23-26.
[3]丁成钢,史春元,都本刚,等.SUS301L不锈钢电阻点焊工艺研究[J].热加工工艺,2006,35(3):33-34.DING Chenggang,SHI chunyuan,DU Bengang,et al.Study on Spot Welding Process of Stainless Steel SUS301L[J].Hot Working Technology,2006,35(3):33-34.
[4]万佳林.SUS301L不锈钢点焊工艺及接头组织与性能[D].长春:吉林大学,2014.WAN Jialin.Resistance Spot Welding Process and the Microstructures and Properties of SUS301LStainless Steel Joints[D].Changchun:Jilin University,2014.
[5]罗震,梁建超,李洋,等.马氏体不锈钢电阻点焊接头回火脉冲工艺研究[J].天津大学学报(自然科学与工程技术版),2018,51(2):205-209.LUO Zhen,LIANG Jianchao,LI Yang,et al.Tempering Pulse Process of Martensitic Stainless Steel[J].Journal of Tianjin University(Science and Technology),2018,51(2):205-209.
[6]沈琦.高强钢磁控电阻点焊机理与工艺方法研究[D].上海:上海交通大学,2012.SHEN Qi.Study on Mechanism and Process in Magnetically Assisted Resistance Spot Welding of High Strength Steels[D].Shanghai:Shanghai Jiao Tong University,2012.
[7]YAO Q,LUO Z.Effect of Electromagnetic Stirring on the Microstructures and Mechanical Properties of Magnesium Alloy Resistance Spot Weld[J].Materials&Design,2014,63:200-207.(编辑王艳丽)