Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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The Effects of Welding Process Parameters on Weld bead Width in GMAW Processes

GMAW 공정 중 용접 변수들이 용접 폭에 미치는 영향에 관한 연구

  • 김일수 (서울대학교, 제어계측신기술연구센터) ;
  • 권욱현 (서울대학교, 제어계측신기술연구센터) ;
  • 박창언 (목포대학교 기계공학과)
  • Published : 1996.08.01
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Abstract

In recent years there has been a significant growth in the use of the automated and/or robotic welding system, carried out as a means of improving productivity and quality, reducing product costs and removing the operator from tedious and potentially hazardous environments. One of the major difficulties with the automated and/or robotic welding process is the inherent lack of mathematical models for determination of suitable welding process parameters. Partial-penetration, single-pass bead-on-plate welds were fabricated in 12mm AS 1204 mild steel flats employing five different welding process parameters. The experimental results were used to develop three empirical equations: curvilinear; polynomial; and linear equations. The results were also employed to find the best mathematical equation under weld bend width to assist in the process control algorithms for the Gas Metal Arc Welding(GMAW) process and to correlate welding process parameters with weld bead width of bead-on-plates deposited. With the help of a standard statistical package program. SAS, multipe regression analysis was undertaken for investigating and modeling the GMAW process, and significance test techniques were applied for the interpretation of the experimental data.

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