Application of Friction Stir Welding (FSW) in Automotive and Electric Vehicle

2022 ◽  
pp. 289-304
Author(s):  
Karn Kavathia ◽  
Vishvesh Badheka
Keyword(s):  
Friction Stir Welding ◽  
Electric Vehicle ◽  
Friction Stir

scholarly journals A Study on the Friction Stir Welding Experiment and Simulation of the Fillet Joint of Extruded Aluminum Material of Electric Vehicle Frame

2020 ◽  
Vol 10 (24) ◽  
pp. 9103
Author(s):  
Hwanjin Kim ◽  
Kwangjin Lee ◽  
Jaewoong Kim ◽  
Changyeon Lee ◽  
Yoonchul Jung ◽  
...  
Keyword(s):  
Residual Stress ◽  
Friction Stir Welding ◽  
Electric Vehicle ◽  
Manufacturing Process ◽  
Base Material ◽  
Welding Process ◽  
Inert Gas ◽  
Measured Temperature ◽  
Friction Stir ◽  
Fillet Joint

In the existing automobile manufacturing process, metal inert gas (MIG) and tungsten inert gas (TIG) welding are mainly used. These welding methods are fusion welding, and the heat input in the welding area is very high. Therefore, the deformation of the base material is large, and the residual stress in the vicinity of the welded area is high, resulting in the problem of reduced mechanical strength. In this study, friction stir welding (FSW) was applied to the welding process of the structure constituting the battery frame of a newly developing electric vehicle to compensate for this problem. The welded part is the fillet joint of the side frame and the bottom frame, and experiments and numerical analysis were performed on the welding deformation and residual stress of the full frame structure. A specially manufactured angle head was used for friction stir welding of the fillet joint of extruded type aluminum, not the existing solid type. The optimum process was derived through experiments, and the temperature of the welding center was derived through test correlation between the value of measured temperature and the finite element model. The final deformation result was verified by comparing it with the measured value using a dial indicator. It is expected that the proposed thermal elasto-plastic analysis method will reduce the testing period and the cost of the manufacturing process and increase productivity.

Microstructural and Mechanical Behaviour Evaluation of Mg-Al-Zn Alloy Friction Stir Welded Joint

2020 ◽  
Vol 17 (3) ◽  
pp. 8150-8159
Author(s):  
Kulwant Singh ◽  
Gurbhinder Singh ◽  
Harmeet Singh
Keyword(s):  
Heat Treatment ◽  
Friction Stir Welding ◽  
Magnesium Alloys ◽  
Mechanical Performance ◽  
Fuel Efficiency ◽  
Research Work ◽  
Grain Structure ◽  
Tensile Fracture ◽  
Friction Stir ◽  
The Impact

The weight reduction concept is most effective to reduce the emissions of greenhouse gases from vehicles, which also improves fuel efficiency. Amongst lightweight materials, magnesium alloys are attractive to the automotive sector as a structural material. Welding feasibility of magnesium alloys acts as an influential role in its usage for lightweight prospects. Friction stir welding (FSW) is an appropriate technique as compared to other welding techniques to join magnesium alloys. Field of friction stir welding is emerging in the current scenario. The friction stir welding technique has been selected to weld AZ91 magnesium alloys in the current research work. The microstructure and mechanical characteristics of the produced FSW butt joints have been investigated. Further, the influence of post welding heat treatment (at 260 °C for 1 h) on these properties has also been examined. Post welding heat treatment (PWHT) resulted in the improvement of the grain structure of weld zones which affected the mechanical performance of the joints. After heat treatment, the tensile strength and elongation of the joint increased by 12.6 % and 31.9 % respectively. It is proven that after PWHT, the microhardness of the stir zone reduced and a comparatively smoothened microhardness profile of the FSW joint obtained. No considerable variation in the location of the tensile fracture was witnessed after PWHT. The results show that the impact toughness of the weld joints further decreases after post welding heat treatment.

Friction stir welding

2010 ◽  
Author(s):  
Daniela Lohwasser ◽  
Zhan Chen
Keyword(s):  
Friction Stir Welding ◽  
Friction Stir

Strength of welded joints of heat-hardenable aluminium alloys in TIG and friction stir welding

2019 ◽  
Vol 2019 (2) ◽  
pp. 13-18 ◽  
Author(s):  
A.G. Poklyatsky ◽  
◽  
S.I. Motrunich ◽  
Keyword(s):  
Friction Stir Welding ◽  
Welded Joints ◽  
Aluminium Alloys ◽  
Friction Stir
Sign in / Sign up

Export Citation Format

Share Document