Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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A Study on Indications in Radiographic Tests in Welding Specimens According to Shielded Amounts of ATOS 80 High-strength Steel

ATOS 80 고장력강의 보호가스량에 따른 용접부 방사선검사에 관한 연구

  • 백정환 (조선대학교 대학원 기계공학과) ;
  • 최병기 (조선대학교 공과대학 기계공학과)
  • Received : 2012.09.06
  • Accepted : 2012.12.10
  • Published : 2012.12.15
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Abstract

In constructing all kinds of equipment and steel structures, discontinuous areas such as weld defects formed in a welded structure tend to generate cracks that will result in damage. In this study, ATOS high-strength steel welding becomes important in butt welding where the tensile strength of the steel is over 80kg/$mm^2$. Structural discontinuities such as joints are more susceptible cracks in part due to their repeated loading and fatigue crack growth. The quality of parts produced depend or the shielded amounts of steel and on the skill of the welders in making strong welds. It is true that there are many factors that can be used to generate a lot of research in this area. However geometry and load conditions due to the combined effects with many issues could be solved through this study. Butt welding material at a plate thickness of 12t in ATOS 80 high-strength steel with a 4 pass, 20l/min, 24V/200A welder is good at making specimens with the quality shown in radiographic testing.

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References

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Cited by

  1. A Study on Welding Characteristics According to a Change in Filler Metal in CO2 Gas Arc Welding of Automobile Structural Steel(ATOS80) vol.17, pp.6, 2012, https://doi.org/10.17958/ksmt.17.6.201512.1185