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Proceedings Paper

Quality control of laser tailor welded blanks
Author(s): Qi Yan
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Paper Abstract

Tailor welded blanks were widely used in the automobile industry for their special advantages. A combination of different materials, thickness, and coatings could be welded together to form a blank for stamping car body panels. With the gradually growing consciousness on safety requirement of auto body structural, the business of laser tailor welded blanks is developing rapidly in China. Laser tailor welded blanks were just the semi products between steel factory and automobile manufacturers. As to the laser welding defects such as convexity and concavity, automobile industry had the strict requirement. In this paper, quality standard on laser tailor welded blanks were discussed. As for the production of laser tailor welded blanks, online quality control of laser tailor welded blanks was introduced. The image processing system for welding laser positioning and weld seam monitoring were used in the production of laser tailor welded blanks. The system analyzes images from the individual cameras and transmits the results to the machine control system via a CAN bus.

Paper Details

Date Published: 1 February 2008
PDF: 8 pages
Proc. SPIE 6825, Lasers in Material Processing and Manufacturing III, 682503 (1 February 2008); doi: 10.1117/12.758309
Show Author Affiliations
Qi Yan, Baoshan Iron and Steel Corp. (China)


Published in SPIE Proceedings Vol. 6825:
Lasers in Material Processing and Manufacturing III
ShuShen Deng; Akira Matsunawa; Xiao Zhu, Editor(s)

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