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GMAW를 이용한 V형 맞대기용접에서 와이어전극돌출길이 변화에 따른 용접 특성 연구

Study on Characteristics of V-type Butt Welding Using GMAW Depending on Variations in the Protrusion Length of Wire Electrode

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참고문헌

키워드

주제분류기계공학

초록

The purpose of this study is to determine more variables in welding characteristics of ATOS(steel for automobile structure) 80 high tensile steel available in market, and in terms of welding using GMAW(gas metal arc welding), this study seeks to examine how welding characteristics of ATOS 80 may vary depending on protrusion length of wire electrode. The major characteristics of this study can be summed up as follows, this study analyzed welding characteristics of ATOS 80 by changing the protrusion length of wire electrode (10㎜, 15㎜ and 20㎜) in welding section, and also used visual inspection and radiograph test to examine observations of major defects on welding section.

Abstract

The purpose of this study is to determine more variables in welding characteristics of ATOS(steel for automobile structure) 80 high tensile steel available in market, and in terms of welding using GMAW(gas metal arc welding), this study seeks to examine how welding characteristics of ATOS 80 may vary depending on protrusion length of wire electrode. The major characteristics of this study can be summed up as follows, this study analyzed welding characteristics of ATOS 80 by changing the protrusion length of wire electrode (10㎜, 15㎜ and 20㎜) in welding section, and also used visual inspection and radiograph test to examine observations of major defects on welding section.

참고문헌 (8)

  1. The Korean Welding and Joining Society, "Welding and Joining Handbook(Ⅲ. Process and thermal processing)", pp.45~ (2007)
  2. C. G. Lee, "Welding Engineering", pp.77~86 (2004), 淸文閣
  3. J. Y. Bak, "Welding and Production Engineering", pp.88~89 (2010), GS InterVision
  4. G. E. NorMark, "Effect of Residual Stress on Fatigue Crack Growth Rate in Weldments of Aluminium Alloy 5456 Plate", ASTM STP 776, 44~62 (1982)
  5. C. M. Suh, "Crack Growth Behavior of Fatigue Microcracks in Low Carbon Steels", Fatigue Fracture Engineering Material Structure, 9(6), pp.409~424 (1987)
  6. J. I. Lee, "The advanced algorithm performance for seam tracking on multipass welding", Jou. of Korean Soc. of Mechanical Technology, 5(2), pp.25~26 (2003)
  7. 김인주, "GMAW를 이용한 V-그루브 초층용접 공정 최적화에 관한 연구", 한국기계기술학회지, 14(5), pp.25~30 (2012), 한국기계기술학회
  8. H. K. Oh, "Welding Engineering", pp.395~ (1999), Wonchang Publishing Co

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