Estimation of penetration depth by using coaxial image monitoring during laser lap welding

Cheolhee Kim, Junghak Kim, Jeonghan Kim, Sehun Rhee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

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.

Original languageEnglish
Title of host publication26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Congress Proceedings
Publication statusPublished - 2007 Dec 1
Event26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Orlando, FL, United States
Duration: 2007 Oct 292007 Nov 1

Publication series

Name26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Congress Proceedings

Other

Other26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007
CountryUnited States
CityOrlando, FL
Period07/10/2907/11/1

    Fingerprint

Cite this

Kim, C., Kim, J., Kim, J., & Rhee, S. (2007). Estimation of penetration depth by using coaxial image monitoring during laser lap welding. In 26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Congress Proceedings (26th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2007 - Congress Proceedings).