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Acoustic Emission Monitoring during Laser Spot Welding of Stainless Steel Sheets  

Lee Seoung Hwan (한양대학교 기계공학과)
Choi Jung Uk (한양대학교 대학원 정밀기계공학과)
Choi Jang Eun (한양대학교 대학원 정밀기계공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.22, no.4, 2005 , pp. 60-67 More about this Journal
Abstract
Compared with conventional welding, laser spot welding offers a unique combination of high speed, precision and low heat distortion. This combination of advantages is attractive for manufacturing industries including automotive and electronics companies. In this paper, a real time monitoring scheme fur a pulsed Nd:YAG laser spot welding was suggested. Acoustic emission (AE) signals were collected during welding and analyzed for given process conditions such as laser power and pulse duration. A back propagation artificial neural network, with AE frequency content inputs, was used to predict the weldability of stainless steel sheets.
Keywords
Laser spot welding; Weld qualities; Acoustic emission monitoring; Artificial neural network;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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