Volume 14 Issue 3 February - April 2019
Research Paper
Abhishek Chauhan*, Sanjeev Kumar**
* Assistant Professor, UIET PUSSGRC,
Hoshiarpur, India.
** Professor, Punjab Engineering
College, Chandigarh, India.
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. https://doi.org/10.26634/jfet.14.3.15283
Abstract
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.
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