Laser & Optoelectronics Progress, Volume. 50, Issue 6, 61203(2013)
Measurement and Analysis of Laser Butt Welding of 7075-T6 Aluminum Alloy by Ultrasonic Inspection
Laser butt welding of 7075-T6 aluminum alloy is carried out by Nd:YAG laser, and the welding sample quality is measured by ultrasonic fault detector. The ultrasonic echo data are gathered and analyzed by experiential waveform analysis, and different typical echo data are collected at different processing paramenters of laser butt welding. The relation between echo feature and processing parameters of laser butt welding is also obtained. The research results show that processing parameters of laser butt welding including laser voltage, laser defocusing amount and welding speed are very important to the welding quality. The optimum processing parameters can be obtained by analyzing the ultrasonic echo data. The research provides a new method to measure the quality of welding seam.
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Luo Kaiyu, Su Bai, Lü Ci, Lin Tong, Liu Juan, Wang Qingwei, Lu Jinzhong. Measurement and Analysis of Laser Butt Welding of 7075-T6 Aluminum Alloy by Ultrasonic Inspection[J]. Laser & Optoelectronics Progress, 2013, 50(6): 61203
Category: Instrumentation, Measurement and Metrology
Received: Mar. 5, 2013
Accepted: --
Published Online: May. 15, 2013
The Author Email: Kaiyu Luo (luoteacher@126.com)