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Proceedings Paper

Tracking and inspection for laser welding
Author(s): Jean-Paul Boillot; Koichi Uota; Etienne Berthiaume; Jeffrey Noruk
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Paper Abstract

High precision, high productivity and high quality are the three absolute requirements in today's laser welding production. Automated laser welding places extreme demands on tool position accuracy. Accurate real-time tracking and inspection systems for laser materials processing make use of high-performance laser sensors. The reliability of the monitored signal can be significantly increased by using high resolution, digital CMOS sensors and high speed real-time image processing technologies. This paper presents the latest developments in high-performance optical joint tracking systems and optical inspection systems based on these technologies. Optical joint tracking systems allow for precise control of part fit-up, machine self-alignment, and adaptive process control; optical inspection systems allow for automated in-line verification, insuring laser welds meet quality standards and customer's specification. Geometric features of welds can be precisely measured and compared to allowable tolerances while undesirable attributes like surface porosities and external defects can be accurately detected.

Paper Details

Date Published: 3 March 2003
PDF: 6 pages
Proc. SPIE 4831, First International Symposium on High-Power Laser Macroprocessing, (3 March 2003); doi: 10.1117/12.486498
Show Author Affiliations
Jean-Paul Boillot, Servo-Robot Inc. (Canada)
Koichi Uota, Servo-Robot Japan Co. Ltd. (Japan)
Etienne Berthiaume, Servo-Robot Inc. (Canada)
Jeffrey Noruk, Servo-Robot Corp. (United States)


Published in SPIE Proceedings Vol. 4831:
First International Symposium on High-Power Laser Macroprocessing

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