On-line visual inspection system for backside weld of tailored blanks laser welding

Author

Xu, Min ; Zhao, Mingyang ; Zou, Yuanyuan

Author_Institution

Shenyang Inst. of Autom., Chinese Acad. of Sci., Shenyang, China

Volume

1

fYear

2010

fDate

27-29 March 2010

Firstpage

525

Lastpage

529

Abstract

In tailored blanks laser welding, the quality of backside weld has a significant influence on mechanical properties of weldment. This paper deals with the issue of visual measurement, inspection of weld bead and defect detection in tailored blanks laser welding. An inspection system based on laser structured light vision has been established for backside weld bead measuring and defect detection. Image processing and extraction algorithms of structured light profiles and feature points are presented. Dimensional parameters are measured and weld defects are detected in the process of tailored blanks laser welding. The experiment results demonstrate that the proposed inspection system and method are suitable for backside weld quality inspection of tailored blanks laser welding.

Keywords

image processing; inspection; laser beam welding; welds; backside weld; defect detection; image extraction; image processing; laser structured light vision; online visual inspection system; tailored blanks laser welding; visual measurement; weld bead inspection; Atmospheric measurements; Diode lasers; Image processing; Image sensors; Inspection; Laser theory; Length measurement; Mechanical factors; Pollution measurement; Welding; backside weld; structured light; tailored blanks laser welding; visual measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Computer Control (ICACC), 2010 2nd International Conference on

Conference_Location

Shenyang

Print_ISBN

978-1-4244-5845-5

Type

conf

DOI

10.1109/ICACC.2010.5487160

Filename

5487160