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A Study on the Residual Stress Distribution of Pure Titanium Welding Material  

Choi Byung-ki (Department of Mechanical Engineering, Chosun University)
Chang Kyung-chun (Korea Institute of Industrial Technology)
Publication Information
Journal of the Korean Society of Safety / v.19, no.4, 2004 , pp. 8-13 More about this Journal
Abstract
The purpose of this paper is to investigate the welding residual stress distribution according to the constraint or non-constraint welding condition with titanium commonly using power station, aircraft, and ship. The measuring method of the residual stress was applied stress release rating method with strain gages and a potable strain meter. The x direction residual stress generally showed the tensile residual stress in case of res03int welding. On the other hand, the x direction residual stress under non-restraint welding were changed tensile stress into compressive stress on 15mm away from welding bead center. Also, the y direction residual stress generally showed the tensile residual stress in case of non-restraint welding and the y direction residual stress under restraint welding were changed tensile stress into compressive stress about 60mm away from welding bead center.
Keywords
residual stress; restraint welding; non-restraint welding;
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