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Research on evaluating laser welding quality based on two-dimensional array ultrasonic probe

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Abstract

In this paper, an evaluating method of laser welding quality for stainless steel lap joint has been studied based on the ultrasonic nondestructive testing technology. The two-dimensional array ultrasonic probe is used to inspect the weld joint, analyzing the effect of fusion state on A-scan echo amplitude, and C-scan image of internal contact surface is established. A concept of equivalent weld width as the quantitative characterization of fusion state is defined, and a computational model of equivalent weld width is discussed based on statistical method. Testing results show that this method is simple and feasible, and its accuracy could completely meet the requirements of engineering application.

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Authors and Affiliations

  1. Key Laboratory of Automobile Materials of Ministry of Education and Department of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun, 130025, People’s Republic of China

    Guanghao Zhou, Guocheng Xu, Xiaopeng Gu & Jing Liu

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  1. Guanghao Zhou
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  2. Guocheng Xu
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  3. Xiaopeng Gu
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  4. Jing Liu
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Correspondence to Xiaopeng Gu.

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Zhou, G., Xu, G., Gu, X. et al. Research on evaluating laser welding quality based on two-dimensional array ultrasonic probe. Int J Adv Manuf Technol 84, 1717–1723 (2016). https://doi.org/10.1007/s00170-015-8243-3

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  • DOI: https://doi.org/10.1007/s00170-015-8243-3

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