Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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A Study on Monitoring for Process Parameters Using Isotherm Radii

등온선 반경을 이용한 공정변수 모니터링에 관한 연구

  • Kim, Ill-Soo (Faculty of Mechanical and Naval Architecture & Marine Engineering, Mokpo University) ;
  • Chon, Kwang-Suk (Dept. of Computer Advanced Machine Design, Gwangju Polytechnic Collage) ;
  • Son, Joon-Sik (Dept. of Mechanical Engineering, Mokpo University) ;
  • Seo, Joo-Hwan (Dept. of Mechanical Engineering, Mokpo University) ;
  • Kim, Hak-Hyoung (Dept. of Mechanical Engineering, Mokpo University) ;
  • Shim, Ji-Yeon (Dept. of Mechanical Engineering, Mokpo University)
  • 김일수 (목포대학교 기계.선박해양공학부) ;
  • 전광석 (한국폴리텍5 광주대학 컴퓨터응용기계설계과) ;
  • 손준식 (목포대학교 대학원 기계공학과) ;
  • 서주환 (목포대학교 대학원 기계공학과) ;
  • 김학형 (목포대학교 대학원 기계공학과) ;
  • 심지연 (목포대학교 대학원 기계공학과)
  • Published : 2006.10.31
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Abstract

The robotic arc welding is widely employed in the fabrication industry fer increasing productivity and enhancing product quality by its high processing speed, accuracy and repeatability. Basically, the bead geometry plays an important role in determining the mechanical properties of the weld. So that it is very important to select the process variables for obtaining optimal bead geometry. In this paper, the possibilities of the Infrared camera in sensing and control of the bead geometry in the automated welding process are presented. Both bead width and thermal images from infrared thermography are effected by process parameters. Bead width and isotherm radii can be expressed in terms of process parameters(welding current and welding speed) using mathematical equations obtained by empirical analysis using infrared camera. A linear relationship exists between the isothermal radii producted during the welding process and bead width.

Keywords

References

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