Al7075를 이용한 GTAW공정의 용가재에 따른 용접 건전성 평가 A Evaluation of Welding Integrity according to the Filler Metal by GTAW Process using Al7075
한국기계기술학회지
(韓國機械技術學會誌)
제18권 제6호
(2016.12)
pp.961-966
pp.961-966
한국기계기술학회
(Korean Society of Mechanical Technology)
초록
This study evaluated the mechanical joining characteristics of substrate Al7075 using the filler metals of ER5356 and Al7075 to secure the joining integrity of the specimens by GTAW. The results of radiographic test show that the welded specimens meet the first level standard of KS D 2042. Besides, welding defects were not occurred. The tensile strengths of the specimens using the filler metals of Al7075 and ER5356 had 240MPa and 252MPa, respectively. The yield strengths were 132MPa and 120MPa, respectively. In case of using the filler metal of Al7075, However, in case of using the filler metal of ER5356, Two filler metals of Al7075 and ER5356 were similar to each other in tensile and yield strength.
저자