Proceedings of the KWS Conference (대한용접접합학회:학술대회논문집)

The Korean Welding and Joining Society (대한용접접합학회)
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A Study on Sensitivity Analysis for Process Parameters in GMA Welding Processes

  • Kim, Ill-Soo (Dept. of Mechanical Engineering, Mokpo National University) ;
  • Park, Chang-Eun (Dept. of Mechanical Engineering, Mokpo National University) ;
  • An, Young-Ho (Dept. of Computer Aided machinery Technology, Mokpo Polytechnic College) ;
  • Park, Ju-Seog (Dept. of Automation System, Mokpo Polytechnic College) ;
  • Chon, Kwang-Suk (Dept. of Computer-Applied Mold and Die, Kwang-Ju Polytechnic College) ;
  • Jeong, Young-Jae (Graduated School, Dept. of Mechanical Engineering, Mokpo National University)
  • Published : 2003.05.01
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Abstract

Generally, the Quality of a weld joint is strongly influenced by process parameters during the welding process. In order to achieve high quality welds, mathematical models that can predict the bead geometry to accomplish the desired mechanical properties of the weldment should be developed. To achieve this objectives, a sensitivity analysis has been conducted and compared the relative impact of three process parameters on bead geometry in order to verify the measurement errors on the values of the uncertainty in estimated parameters. The results obtained show that developed mathematical models can be applied to estimate the effectiveness of process parameters for a given bead geometry, and a change of process parameters affects the bead width and bead height more strongly than penetration relatively.

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