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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Mechanical Properties of Metal Inert Gas Welding Conditions of Railway-Vehicle Aluminum Under Frame

철도차량 AI 하부구조의 MIG 용접 조건에 따른 기계적 특성에 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 : 2021.02.02
  • Accepted : 2021.04.14
  • Published : 2021.06.30
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Abstract

In this study, the mechanical properties of railway-vehicle aluminum under frame was investigated based on the metal inert gas (MIG) welding conditions. An aluminum-alloy (6005A-T6) extruded material used in the lower panel of a railway vehicle was connected through MIG welding to determine the mechanical properties of MIG welds. Argon shielding gas and filler materials, such as ER5356 and ER4043, were used as consumable welding materials. For the welding conditions of the test specimen, welding frequencies of 2.5 and 4.5 Hz were applied using the SynchroPuls function, and the root faces were 1.0 and 1.5 mm. The mechanical properties of the MIG welds were determined through tensile, bending, and fatigue tests.

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References

  1. Kim, J. S., Kim, B. H., Lee, C. S., Kim, Y. J. and Park, Y. H., "Study on The Status of Welded Parts According to The Types of Shielding Gas in TIG Welding," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14, No. 2, pp. 38-43, 2015. https://doi.org/10.14775/ksmpe.2015.14.2.038
  2. Joo, Y. H., Park, Y. C., Lee, Y. M. and Kim, K. H., "The Weldability of a Thin Friction Stir Welded Plate of Al5052-H32 using High Frequency Spindle," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 16, No. 1, pp. 90-95, 2017. https://doi.org/10.14775/ksmpe.2016.16.1.090
  3. Park, K. D., Lee, H. J., Lee, D. Y. and Kang, D. M., "Dissimilar Friction Stir Welding Characteristics of Mg Alloys(AZ31 and AZ61)," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 16, No. 5, pp. 99-104, 2017. https://doi.org/10.14775/ksmpe.2017.16.5.099
  4. Won, S. T. and Kim, W. K., "Optimum Design of the Friction Stir Welding Process on A6005 Extruded Alloy for Railway Vehicles to Improve Mechanical Properties," Journal of Welding and Joining, Vol. 27 pp. 81-87, 2009. https://doi.org/10.5781/KWJS.2009.27.5.081
  5. Kim, Y., Park, K. Y. and Lee, K. D., "Evaluation of Formability Depend on Aluminum Filler Wire to Make Lightweight Vehicle for MIG Welding Process," Journal of Welding and Joining, Vol. 29, pp. 30-34, 2011. https://doi.org/10.5781/KWJS.2011.29.4.392
  6. Douglas, S. and Baesoo, J., "Shielding Gases for Welding Aluminum," Journal of Welding and Joining, Vol. 31, pp. 38-42, 2013. https://doi.org/10.5781/KWJS.2013.31.1.38
  7. Jung, S. H., Kim, H. J., "Study on Optimal Welding Conditions for Underframe of Railway Vehicles," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 20, No. 4, pp. 1-7, 2021. https://doi.org/10.14775/ksmpe.2021.20.04.001