Thermal behavior analysis and mechanical characterization of friction stud welded AISI 304/AA6063 joints

This study investigates the joining efficiency by analyzing the thermal behavior of friction stud welding of AISI 304 stainless steel and AA6063 alloys. Effects of the three most influential process variables including rotational speed (RS), friction time (FT) and friction pressure (FP) have been in...

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Bibliographic Details
Published inJournal of the Brazilian Society of Mechanical Sciences and Engineering Vol. 44; no. 4
Main Authors Rajesh Jesudoss Hynes, N., Jones Joseph Jebaraj, D., Selvaraj, Meby, Ali, Muhammad Asad, Raza, Muhammad Huzaifa, Pruncu, Catalin I., Shenbaga Velu, P., Vignesh, N. J.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.04.2022
Springer Nature B.V
Subjects
Aluminum base alloys
Austenitic stainless steels
Cooling curves
Diamond pyramid hardness
Dissimilar metals
Engineering
Finite difference method
Finite element method
Friction stud welding
Friction welding
Grain size
Heat treating
Impact strength
Intermetallic phases
Mechanical Engineering
Mechanical properties
Microstructural analysis
Process variables
Stud welding
Technical Paper
Thermal analysis
Thermodynamic properties
Thermal analysis
Finite element analysis
Friction stud welding
Dissimilar metals
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Summary:This study investigates the joining efficiency by analyzing the thermal behavior of friction stud welding of AISI 304 stainless steel and AA6063 alloys. Effects of the three most influential process variables including rotational speed (RS), friction time (FT) and friction pressure (FP) have been investigated on the thermal profile of joint interface region of dissimilar metals using peak temperature during the friction welding process. Thermal analysis of the joint interface is performed using finite element analysis (FEA) and finite difference method (FDM). The influence of different process variables has also been analyzed on the heating and cooling curves of the interface region at different moments. Microstructural analysis reveals that variation in the peak temperature also varies the grain size in the intermetallic phases formed in the interface region. At higher peak temperatures, finer grains yield a stronger bond between dissimilar metals. Peak values of the impact strength have been obtained at higher levels of RS, FT and FP. Maximum Vickers hardness of 325 HV has been observed at the joint interface, which has more than both parent metals.
ISSN:1678-5878
1806-3691
DOI:10.1007/s40430-022-03412-2