A6061-T6 합금의 마찰 교반 용접 시 공구 이송 속도에 따른 용접부 인장강도 특성 연구
A Study on the Tensile Strength Characteristics of Welded Parts Based on Variations in Welding Speed during Friction Stir Welding of A6061-T6 Alloy
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초록
In this study, FSW experiments using a commercial machining center (instead of an FSW-only experimental device) were conducted on the most widely used A6061-T6 alloy among aluminum alloys to assess the welding possibilities with this alloy. More specifically, the study aimed to establish a correlation between the tensile strength characteristics of welds when the transfer velocity of the tool (a representative process variable that is highly correlated with productivity) changes. Test results showed that under all conditions, the weld surface was not defective and the tensile strength of the welds exceeded 70% over the base material. Results also showed that the highest tensile strength was achieved under the 300-mm/min supply speed condition of the tool and with 85% of the base material. The study thus revealed that the greater the transfer velocity of the tool in the friction cross-plate of the A6061-T6 alloy, the greater was the tensile strength of the welds.
Abstract
In this study, FSW experiments using a commercial machining center (instead of an FSW-only experimental device) were conducted on the most widely used A6061-T6 alloy among aluminum alloys to assess the welding possibilities with this alloy. More specifically, the study aimed to establish a correlation between the tensile strength characteristics of welds when the transfer velocity of the tool (a representative process variable that is highly correlated with productivity) changes. Test results showed that under all conditions, the weld surface was not defective and the tensile strength of the welds exceeded 70% over the base material. Results also showed that the highest tensile strength was achieved under the 300-mm/min supply speed condition of the tool and with 85% of the base material. The study thus revealed that the greater the transfer velocity of the tool in the friction cross-plate of the A6061-T6 alloy, the greater was the tensile strength of the welds.
참고문헌 (6)
- Thomas, W. M, "Patent Application No. 9125978", ~ (1991)
- R. Nandan, "Recent Advances in Fricition Stir Welding Process, Weldment Structure and Properties", Progress in Materials Science, 53, pp.980~1023 (2008)
- 원시태, "마찰 교반 용접된 철도 차량용 A6005 압출재의 기계적 성능 향상을 위한 최적 공법 설계", 대한용접접합학회지, 27(5), pp.81~87 (2009), 대한용접접합학회
- 강대민, "마찰교반 용접조건에 따른 Al 5052 알루미늄 합금의 접합특성", 동력시스템공학회지, 20(3), pp.51~56 (2016), 한국동력기계공학회[DOI]
- 김종도, "용접법의 우선순위 결정 방법", 한국기계가공학회지, 15(5), pp.39~47 (2016), 한국기계가공학회[DOI]
- James, M. N, "Weld Tool Travel Speed Effects on Fatigue Life of Friction Stir Welds in 5083Aluminum", International Journal of Fatigues, (25), pp.1389~1398 (2003)