Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Development of an algorithm for Controlling Welding Bead Using Infrared Thermography

적외선 카메라를 이용한 용접비드를 제어하기 위한 알고리즘 개발

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  • Y.Prasad
  • 김일수 (목포대학교 기계공학과) ;
  • 박창언 (목포대학교 기계공학과) ;
  • 손준식 (목포대학교 기계공학과 대학원) ;
  • 박순영 (목포대학교 전자공학과) ;
  • 정영재 (목포대학교 기계공학과 대학원) ;
  • Published : 2000.12.01
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Abstract

Dynamic monitoring of weld pool formation and seam deviations using infrared vision is described in this paper. Isothermal contours representing heat dissipation characteristics during the process of arc welding were analysed and processed using imaging techniques. Maximum bead width and penetration were recorded and the geometric position in relation to the welding seam was measured at each sampling point. Deviations from the desired bead geometry and welding path were sensed and their thermographic representations were digitised and welding path were sensed and their thermographic representations were digitised and subsequently identified. Evidence suggested that infrared thermography can be utilized to compensate for inaccuracies encountered in real-time during robotic arc welding.

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References

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