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The Weldability of Aluminum Ball in Electrolyte Injection Hole by Nd:YAG Laser  

Kim, Jong-Do (한국해양대학교 기관시스템공학부)
Yoo, Seung-Jo (한국해양대학교 대학원)
Kim, Jang-Soo (한국해양대학교 대학원)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.30, no.6, 2006 , pp. 740-745 More about this Journal
Abstract
This study suggested the occurrence source of weld-defects and its solution methods in a welding of Electrolyte injection hole by pulsed Nd:YAG laser. In experiment, the ramp down was used in order that solidification crack was removed. Furthermore. shrinkage stress and heat input were reduced by changing of weld trajectory and defocused distance. As a results of a experiment, a sound weld bead shape and crack-free weld bead can be obtained. In conclusion this show that the welding stability is greatly affected by modulation of laser pulse shape for the same laser energy and welding parameters.
Keywords
Pulsed Nd:YAG laser; Aluminum ball; Electrolyte injections hole; Solidification crack; Shrinkage stress;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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