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초록
Welding process monitoring is advantageous for maintaining weld quality and numerous sensing techniques have been developed for laser welding. Coaxial image monitoring enables direct monitoring of the weld pool shape and keyhole behavior, but requires the complex optical system and the image processing technique. In this study, we coaxially acquired the weld pool images during laser lap welding by using the camera and special illumination. The welding characteristics - pool width and length, keyhole shape, etc - were extracted by using image processing and the relationship between these characteristics and the penetration depth were investigated.
키워드
Electric welding; Laser beam welding; Optical data processing; Optical systems; Process monitoring; Welds; Complex optical systems; Direct monitoring; Image monitoring; Image processing technique; Keyhole behavior; Laser lap welding; Sensing techniques; Welding characteristics; Image processing
- 제목
- Estimation of penetration depth by using coaxial image monitoring during laser lap welding
- 저자
- Kim, Cheolhee; Kim, Junghak; Kim, Jeonghan; Rhee, Sehun
- 발행일
- 2007-10
- 유형
- Conference Paper
- 저널명
- 26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Congress Proceedings
- 페이지
- 1 ~ 7