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Journal of KWJS. 2012;30(2):47-53. Published online May 16, 2012.
DOI: https://doi.org/10.5781/KWJS.2012.30.2.47
- Analysis of Residual Stress on Dissimilar Butt Joint by TIG Assisted Hybrid Friction Stir Welding
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Bang Hee-Seon, Ro Chan-Seoung, M.S. Bijoy, Bang Han-Sur, Lee Yoon-Ki
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- Abstract
- This paper aimed to study and understand the mechanical phenomena of thermal elasto-plastic behavior on the dissimilar butt joint (Al 6061-T6 and STS304) by TIG assisted Friction Stir Welding. Heat conduction and residual stress analysis is carried out using in-house solver. Two-dimensional results of the heat distribution and residual stresses in dissimilar joint for particular tool geometry and material properties are presented. The predicted stress along longitudinal direction in Al 6061-T6 and STS304 are approximately between 12-15% of their respective yield strengths. A comparison is made between experimentally measured and numerically predicted equivalent residual stress values.
Keywords :Friction stir welding;Dissimilar material;Heat conduction;Residual stress;strain gauge
