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A Study on the Mechanical Properties and Residual Stress Distribution of Ti Welding Material  

최병기 (조선대학교 기계공학부)
장경천 (한국생산기술연구원)
국중민 (한국생산기술연구원)
정장만 (성화대학 항공/자동차정비과)
구남열 (경남대학교 대학원 기계공학과)
Publication Information
Journal of the Korean Society of Safety / v.18, no.1, 2003 , pp. 1-7 More about this Journal
Abstract
The objective of this paper was to investigate the welding characteristics according to the restraint condition. the pass number, and the shield gas quantity with titanium commonly using in power stations, aircrafts, ships, and so forth. The residual stress distribution was measured under restraint and nonrestraint welding conditions. The tensile strength and elongation of the 4 pass welded specimen were shown higher about 10% and 30% than those of the 7 pass welded specimen at the same welding conditions respectably. Also, the more shield gas quantity and the shorter natural cooling time, the higher tensile strength and the lower elongation.
Keywords
residual stress distribution; mechanical properties; restraint welding; nonrestraint welding;
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