Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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A Study on Resistance Spot Welding of Dissimilar Sheet Metals(Aluminum Alloy - Steel Sheets)

이종재료(알루미늄합금-강판)의 저항 점용접에 관한 연구

  • 손병천 (명지대학교 대학원, 기계공학과) ;
  • 우승엽 (명지대학교 대학원, 기계공학과) ;
  • 이재범 (명지대학교 대학원, 기계공학과) ;
  • 최용범 (명지대학교 대학원, 기계공학과) ;
  • 장희석 (명지대학교 기계공학과)
  • Published : 1997.08.01
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Abstract

Resistance spot welding has been widely used in the sheet metal joining processes because of its high productivity and convenience. Recently, automobile industries are trying to replace partly steel sheets with aluminum alloy sheets. Among currently produced aluminum alloys, Al alloy sheets of Al-Mg-Si(6000 series) are being tested. Especially, 6000 series are the most probable substitute in view of strength and weldability. In this paper, an attempt was made to apply resistance spot welding to joining of dissimilar sheet metals (KS6383+SCPZn or KS6383+SHCP). An effort was made to balance heating rate in the Al alloy with that in the steel sheets by increasing electrode tip diameter. Although resistance spot welding of Al alloy sheet and sheet metals does not produce desirable nugget, it proved to have reasonable strength if optimal weld condition is found by tensile-shear strength and fatigue life test. Since spot weld joints in automobile are always experiencing repeated load, spot welding methodology proposed in this paper is found to be not suitable to automobile body manufacturing.

Keywords

References

  1. Welding Journal Electrode Separation Applied to Quality Control in Resistance Welding WALLER D.N.;KNOWLSON P.H.;NIED H. A.;GODWIN S.J
  2. Metallographic Etching G NTER PETZOW
  3. Welding Journal A Closed Loop Control System for Three-Phase Resistance Spot Welding WOOD R.T.;BAUER L.W.;BEDARD J.F.;BERNSTEIN B.M.;HOGLE R.A
  4. Mechanics Research Communications v.12 no.16 A Study on the Elestric Conductance of Resistance Spot Welds CHO Y. S.;CHO H.S.
  5. A Proportional-Integral Controller Compensating Spot Weld Quality Variation due to Electrode Wear, Modeling, Sensing, and Control of Manufacturing Process, PED - Vol.23 and DSC-Vol.4 CHANG H.S.;CHO Y.J.;CHOI S.G.;CHO H.S.
  6. Welding Journal Measurement of Dynamic Electrical and Mechanical Properties of Resistance Spot Welds GEDEON S. A.;SORENSEN C.D.;ULRISH K.T.;EAGAR T.W
  7. Estimation and Control of the Weld Nugget Size in Resistance Spot Welding Processes, Sensors for Manufacturing, PED-Vol.26 CHANG H.S.;CHO H.S.
  8. Fundamentals of Metal Fatigue Analysis JULIE BANNANTINE
  9. ASME Journal of Dynamic Systems, Measurement, and Control v.111 no.2 A Proportional -Integral Controller for Resistance Spot Welding using Nugget Expansion CHANG H.S.;CHO Y.J.;CHOI S.G.;CHO H.S.
  10. Resistance Welding Manual(4th Edition) Resistance Welding Manufactures Association
  11. Metal Handbook(10th Edition) v.2 ASM International
  12. Welding Handbook(8th Edition) American Welding Society
  13. 대한기계학회논문집 no.2월 저항 점용접에서 인공신경회로망을 이용한 용융부추정에 관한 연구 최용범;장희석;조형석
  14. 대한용접학회 춘계학술대회 논문집 용융부형상 판독을 위한 영상처리기법 김상필;신현욱;최덕준;장희석
  15. 대한용접학회 논문집 v.12 no.4 알루미늄합금의 저항점용접에 관한 연구 김상필;홍태민;장희석
  16. 전극분리 현상을 통한 알루미늄합금의 저항 점용접에 관한 연구 김상필
  17. 명지대학교 대학원 석사 논문 동저항 분석을 통한 알루미늄합금의 저항 점용접에 관한 연구 홍태민
  18. 저항용접(2판) 김명준
  19. Welding Journal The Role of Failure Mode, Resistance Spot Weld an Adhesive on the Fatigue Behavior of Weld-Bonded Aluminum THORNTON P.H. THORNTON;KRAUSE A.R.;DAVIES R. G.
  20. 용접공학 박성두(외 4인)
  21. 금속열처리 이상윤(외 5인)
  22. Solders and Soldering(3rd Edition) Howard H. Manko
  23. Solders and Soldering(3rd Edition) Howard H.Manko
  24. Welding, Brazing and Soldering v.6 ASM International
  25. Corrosion resistance of aluminum-transition-steel joints for automobiles Robert Baboian;Gardner Haynes
  26. Quarterly Journal of the Japan Welding Society v.2 no.1 Impulsive High Current Density Spot Welding of Aluminum Alloy to Mild Steel (Report 1) - Effect of Surface Treatment on Weldablity Shuji Nakata;Hitoshi Maekawa;Yoshihiro Kashiba
  27. SAE Transactions v.10 The Development of a Joint Design Approach for Aluminum Automotive Structures I.J. McGregor;D. Nardini;Y. Gao;D. Y. Meadows
  28. SAE Transactions v.101 no.8 Aluminum/steel spot welding Demmler, Al
  29. Quarterly Journal of the Japan Welding Society v.2 no.2 Impulsive High Current Density Spot Welding of Aluminum Alloy to Mild Steel (Report 2) - Effect of Current Direction on Weldablity Shuji Nakata;Hitoshi Maekawa;Yoshihiro Kashiba
  30. Welding Journal The Role of Failure Mode, Resistance Spot Weld and Adhesive on the Fatigue Behavior of Weld-Bonded Aluminum WANG P. C.;CHISHOLM S. K.;BANAS G.;LAWRENCE F. V.