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http://dx.doi.org/10.5781/KWJS.2007.25.4.065

Welding Characteristics of Aluminized Steel Sheet by Nd:YAG Laser(I) - Effects of AI Coating Weight on Weld Strength -  

Kim, Jong-Do (Division of Marine Engineering System, Korea Marine University)
Lee, Jung-Han (Graduated school, Korea Marine University)
Kim, Ki-Chol (Welding research center, RIST)
Publication Information
Journal of Welding and Joining / v.25, no.4, 2007 , pp. 65-71 More about this Journal
Abstract
Laser weldability of the aluminized steel for the full penetration welding will be described in this paper. We focused on the effect of Al coating conditions on weld strength. For these objectives, aluminized steel sheets that have various thickness and coating weight were prepared for laser welding. And then, tensile-shear and hardness test were carried out. At the same time, Al contents in weld after laser welding were analyzed and their correlations with mechanical properties were investigated. Besides, as removing partially coating layer, weldability has been investigated according to the position of coating layer. As a result of this study, tensile-shear strength was decreased with increasing Al contents in weld, and Al of coating layer caused grain growth.
Keywords
Aluminized steel sheet; Laser welding; Al coating weight; Tensile-shear strength; Hardness;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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