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http://dx.doi.org/10.7736/KSPE.2015.32.8.681

Welding Characteristics of Lap-Joint Hastelloy C-276 Sheet Metal Using Nd:YAG Laser  

Kim, Chan Kyu (School of Mechanical Engineering, Changwon National University)
Jung, Yoon Gyo (School of Mechanical Engineering, Changwon National University)
Cho, Young Tae (School of Mechanical Engineering, Changwon National University)
Publication Information
Journal of the Korean Society for Precision Engineering / v.32, no.8, 2015 , pp. 681-685 More about this Journal
Abstract
Hastelloy C-276 composed of Cr, Mo, and Ni is a versatile, corrosion-resistant alloy with numerous industrial applications including its use in nuclear reactors, general chemical plants, and as a superconducting base material. Of especial significance, it can be used as a thin-sheet type whereby lap-joint welding is occasionally necessary. The main welding problems for thin-sheet metals are deformation and burn-through from an excessive heat input. Laser welding can minimize these problems because it has a high energy density and low heat effect on the base material. In this study, the laser-welding characteristics of lap-joint Hastelloy C-276 sheet metal were determined. The criteria of the laser-welding variables were chosen using a heat-conduction analysis, and the optimal welding parameters were selected by experimenting with an Nd:YAG laser.
Keywords
Hastelloy C-276; Sheet weld; Nd:YAG laser; Lap joint;
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Times Cited By KSCI : 1  (Citation Analysis)
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