Research on Correlation between Weld Concavity and Weld Process Parameters in Tailored Blank Laser Welding

Abstract:

Weld quality control is of great importance in tailored blank laser welding for the purpose of making products at a high quality and high productivity. In general, the controllable parameters are only indirect data on features of the final weld to be made. In this paper, direct correlation between weld concavity and weld process parameters including weld gap and torch offset are discussed based on theoretical analyses and experiments. A direct control model is established according to the analysis of reasons causing weld concavity. This model will improve the quality of laser welding process by accurately controlling the weld geometry in real time.

• Periodical: Advanced Materials Research (Volumes 154-155)
• Pages: 553-557
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.154-155.553
• Online since: October 2010
• Authors: Ming Yang Zhao, Yuan Yuan Zou, Dong Chen
• Keywords: Concavity, Tailored Blank Laser Welding, Torch Offset, Weld Defects, Weld Gap

References

[1] T. W. Ku, B. S. Kang, H. J. Park: Int Adv Manuf Technol (2004).

[2] Q. G. Zheng, Y. X. Qin and W. C. Zhu: Optical Technique (2002), 28(5): pp.422-426.

[3] B. Kinsey, ZH. Liu, J. Cao: J Mater Process Technol (2000), 99: 145-153.

[4] E. Kubel: J Manuf Sci Eng Trans ASME (1997), 119: 38-45.

[5] D. F. Farson, K. R. Kim: Journal of applied physics (1999), 85: 1329-1336.

[6] Q. G. Zheng, J. H. Gu, and T. Wang: Laser Technology (2000), 24(2): pp.90-94.

[7] M. C. Ton: Welding Journal (1985), 64(9): 43-48.

[8] ISO 13919-1: 1996 (E).