Development and characterization of dissimilar joint between AA2024-T3 and AA6061-T6 by modified friction stir clinching process

被引：40
|
作者：
Paidar, M. [1 ]
Vignesh, R. Vaira [2 ]
Moharrami, A. [3 ]
Ojo, O. O. [4 ]
Jafari, A. [5 ]
Sadreddini, S. [6 ]
机构：
[1] Islamic Azad Univ, Dept Mat Engn, South Tehran Branch, Tehran 1459853849, Iran
[2] Amrita Vishwa Vidyapeetham, Dept Mech Engn, Amrita Sch Engn, Coimbatore, Tamil Nadu, India
[3] Pishroghaleb Simindasht Ind Prod Co, Dept Res & Dev, Simindasht Ind Pk, Alborz, Iran
[4] Fed Univ Technol Akure, Dept Ind & Prod Engn, Akure, Nigeria
[5] South Ural State Univ, 76 Lenin Aven, Chelyabinsk 454080, Russia
[6] Islamic Azad Univ, Sci & Res Branch, Young Researchers & Elites Club, Tehran, Iran
来源：
VACUUM | 2020年 / 176卷
关键词：
Microstructure; Friction stir clinching; Aluminum; Dissimilar; Welding; MECHANICAL-PROPERTIES; ALUMINUM-ALLOY; FATIGUE LIFE; MICROSTRUCTURE; TOOL; STRENGTH; DESIGN;
D O I：
10.1016/j.vacuum.2020.109298
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Friction stir spot welding (FSSW) is one of the effective solid-state welding strategies to achieve good joint efficiency between dissimilar aluminum alloys. However, the formation of tool-induced keyhole (a stress raiser) is inevitable during the FSSW process. This study explores the possibility of eliminating keyhole with the aim of improving the properties of the joint by Modified Friction Stir Clinching (MFSC) process. The tensile-shear and cross-tension strengths of the MFSC joints are 83% and 50% higher than that of the specimens joined by FSSW. The article presents a comprehensive analysis of the material flow characteristics, microstructural evolution, and tensile properties of the dissimilar joints between AA2024-T3 and AA6061-T6 that was enabled by the MFSC process.
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页数：6
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