Correlation analysis of the variation of weld seam and tensile strength in laser welding of galvanized steel推荐.pdf

Optics and Lasers in Engineering 51 (2013) 1143– 1152 Contents lists available at SciVerse ScienceDirect Optics and Lasers in Engineering journal homepage: /locate/optlaseng Correlation analysis of the variation of weld seam and tensile strength in laser welding of galvanized steel Amit Kumar Sinha a, Duck Young Kim a,n, Darek Ceglarek b a School of Design and Human Engineering, Ulsan National Institute of Science and Technology, UNIST-gil 50, Ulsan, Republic of Korea b International Digital Laboratory, WMG, University of Warwick, West Midlands CV4 7AL, United Kingdom a r t i c l e i n f o a b s t r a c t Article history: Many advantages of laser welding technology such as high speed and non-contact welding make the use Received 11 February 2013 of the technology more attractive in the automotive industry. Many studies have been conducted to Received in revised form search the optimal welding condition experimentally that ensure the joining quality of laser welding that 17 April 2013 relies both on welding system configuration and welding parameter specification. Both non-destructive Accepted 17 April 2013 and destructive techniques, for example, ultrasonic inspection and tensile test are widely used in practice Available online 15 May 2013 for estimating the joining quality. Non-destructive techniques are attractive as a rapid quality testing Keywords: method despite relatively l