Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Study on Optimal Welding Conditions for Underframe of Railway Vehicles

철도차량 하부구조의 적정 용접조건에 관한 연구

  • Jung, Sang-Ho (School of Automotive Engineering, Gyeongsang National University) ;
  • Kim, Hae-Ji (Department of Automotive Engineering, Gyeongsang National University)
  • 정상호 (경상국립대학교 자동차공학과 대학원) ;
  • 김해지 (경상국립대학교 자동차공학과)
  • Received : 2020.12.02
  • Accepted : 2021.01.21
  • Published : 2021.04.30
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Abstract

In this study, MIG welding was performed on extruded 6005A-T6 material, which is used in the base panel of railway vehicles. The material was considered as the experimental base material, and argon shielding gas and ER5356 and ER4043 filler metals were used as the consumable welding materials. Welding coupons were prepared under various welding conditions by using an auto-welding system that various welding conditions applied 2.5Hz and 4.5Hz the pulse frequency of SynchroPuls function of welding machine and 1.0mm and 1.5mm of root face affect the weld penetration of welding joint. The welding current and voltage were also varied for this testing. On the basis of the results obtained, optimum welding conditions are proposed.

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References

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