標題: | A Study of the Performance of Dissimilar A-TIG welds |
作者: | Kuo, Cheng Hsien Tsai, Yao Long Chou, Chang Pin 機械工程學系 Department of Mechanical Engineering |
關鍵字: | A-TIG;Dissimilar metal welding;Oxide flux |
公開日期: | 2012 |
摘要: | The performance of dissimilar activated tungsten inert gas (A-TIG) welding on the welds morphology, angular distortion, and mechanical properties in dissimilar metal plates were investigated. Autogenous TIG welding process was applied to the JIS G3131 mild steel and type 316L stainless steel through a thin layer of activating flux to produce a butt-joint weld. CaO, SiO2, Fe2O3, and Cr2O3 fluxes were used as the activating fluxes. The experimental results indicated that the SiO2, Fe2O3, and Cr2O3 fluxes can increase joint penetration in both of the 316L stainless steel and the JIS G3131 mild steel. The CaO flux only can increase the joint penetration of the mild steel. The reversed Marangoni convection are considered to the main factors for increasing penetration of A-TIG on dissimilar welds in this study. Furthermore, TIG welding with SiO2 powder can significantly reduce the angular distortion and increase the tensile strength of the dissimilar weldment. |
URI: | http://hdl.handle.net/11536/20761 http://dx.doi.org/10.4028/www.scientific.net/AMR.530.74 |
ISBN: | 978-3-03785-433-4 |
ISSN: | 1022-6680 |
DOI: | 10.4028/www.scientific.net/AMR.530.74 |
期刊: | SMART TECHNOLOGIES FOR MATERIALS |
Volume: | 530 |
起始頁: | 74 |
結束頁: | 79 |
顯示於類別: | 會議論文 |