Mechanical & Microstructure Aspects of Friction Stir Welded Aluminum Alloy AA2014 Butt Joints

Abhishek Chauhan*, Sanjeev Kumar**
* Assistant Professor, UIET PUSSGRC, Hoshiarpur, India.
** Professor, Punjab Engineering College, Chandigarh, India.
Periodicity:February - April'2019


This is an experimental study to investigate the mechanical and microstructure aspects of Friction Stir Welded (FSW) butt joint. From previous studies, it is found that friction stir welding parameters such as Tool rotation and Tool pin profile significantly affect the mechanical and metallurgical properties of the welded joints. The joints were welded using AA2014 aluminum alloy plates of 5 mm thickness with High carbon steel tool using different pin shapes. Two shapes i.e. straight cylindrical pin and tapered pin were used to join the plates at tool rotation of 1200 rpm. Tensile properties of the welded joints were investigated using universal testing machine. Both the joints demonstrated good yield and ultimate strength. It was found that the cylindrical pin has better tensile strength as compared with tapered pin profile. It may be concluded that the strength of the weld is directly proportional to the surface area of the pin profile. Improvement in hardness of stirred zone is noticed due to smaller grain size in both the joints. Some specimens of the weld failed in the regions corresponding to heat affected area and some failed in the welded area.


Keywords: Friction Stir Welding, Tool Pin Profile, Rotational Speed, Tensile Strength, Hardness, Microstructure.

How to Cite this Article?

Chauhan,A.,and Kumar,S.(2019).Mechanical & Microstructure Aspects of Friction Stir Welded Aluminum Alloy AA2014 Butt Joints. i-manager’s Journal on Future Engineering and Technology,14 (3), 27-34.


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