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Resistance Spot Welding Characteristics of Mg Alloy Using Process Tape

Process Tape를 사용한 마그네슘 합금의 저항 점 용접 특성

  • 최동순 (한국생산기술연구원 용접접합연구그룹) ;
  • 김동철 (한국생산기술연구원 용접접합연구그룹) ;
  • 강문진 (한국생산기술연구원 용접접합연구그룹)
  • Received : 2013.03.20
  • Accepted : 2013.06.25
  • Published : 2013.06.30

Abstract

Recently, studies about application of magnesium alloy sheet to automotive bodies are on the increase. For application to automotive bodies, researches about characteristics of resistance spot welding of magnesium alloy sheet are essential. Electrode life of resistance spot welding of magnesium alloy is very short due to sticking of magnesium alloy to copper alloy electrode. To increase electrode life, most effective method is inserting cover plate between electrode and magnesium sheet. But application of cover plate to actual process is difficult and decreases welding productivity. Process tape supplied automatically as cover plate can minimize lose of productivity and increase welding quality. In this study, resistance spot welding of magnesium alloy is carried out with applying process tape. Acceptable welding current region according to electrode force and welding time is determined.

Keywords

References

  1. Phenomenon and Application of Resistance Spot Welding (1), JWS bulletin No.8, 1983.3
  2. T.W. Yoon, R.H. Kim, M.Y. Lee and K.H. Lee : The Development of Car Body Part Using Mg AZ31, The Korea Society of Automotive Engineers, 2012 Autumn Annual Meeting (2012), 97-101
  3. B.H. Yoon and Y.S. Chang : Welding Technology of Magnesium alloy for Automotive Industry, KWJS 22-3(2004), 23-31
  4. S.N. Jung, H.S. Chang, and M.Y. Lee : A Study on Servo DC Resistance Spot Welding of Mg Alloy Sheet, KWJS 27-1(2009), 102-107 https://doi.org/10.5781/KWJS.2009.27.1.102
  5. L. Xiao, L. Liu, Y. Zhou, and S. Esmaeiri : Resistance-Spot-Welded AZ31 Magnesium Alloys: Part I. Dependence of Fusion Zone Microstructures on Second-Phase Particles, Metallurgical and Materials Transactions A, 41A(2010), 1511-1522
  6. D.S. Choi, I.S. Hwang, D.C. Kim, M.J. Kang : Electrode life test of Resistance Spot Welding on Mg Alloy Using Dome Type Electrode, KWJS, in review
  7. L. Liu, S. Q. Zhou, Y. H. Tian, J. C. Feng, J. P. Jung and Y. N. Zhou : Effects of Surface Conditions on Resistance Spot Welding of Mg Alloy AZ31, Science and Technology of Welding and Joining, 14-4 (2009), 356-361 https://doi.org/10.1179/136217108X394726
  8. I.S. Hwang, D.C. Kim, M.J. Kang : Inverter DC Resistance Spot Welding of Magnesium Alloy AZ31, Archive of Material Science and Engineering, 48-2 (2011), 112-117
  9. Hongxin Shi, Ranfeng Qiu, Jinhong Zhu, Keke Zhang, Hua Yu and Gaojian Ding : Effects of Welding Parameters on the Characteristics of Magnesium Alloy Joint Welded by Resistance Spot Welding with Cover Plates, Materials and Design, 31-10 (2010), 4853-4857 https://doi.org/10.1016/j.matdes.2010.05.044
  10. N. Kishore Babua, S. Brauser, M. Rethmeier, and C.E. Cross : Characterization of microstructure and deformation behaviour of resistance spot welded AZ31 magnesium alloy, Materials Science and Engineering A, 549(2012), 149-156 https://doi.org/10.1016/j.msea.2012.04.021

Cited by

  1. A review on resistance spot welding of magnesium alloys vol.86, pp.5-8, 2016, https://doi.org/10.1007/s00170-015-8258-9