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Effect of Process Parameters on Wear Behaviour of Friction Stir Welded Heat-Treated Aluminium Alloy AA6063-T6
The proposed research uses the base metal. The butt joints were milled on a vertical milling machine at constant welding speeds (35, 45, 95, and 124 mm/min) and varying tool rpm (750, 1150, 1450, and 1750 rpm). A pin-on-disc tribometer is used for measuring wear rate with a disc revolving at 1200 rpm and a constant applied stress of 40 kN. The study found that a higher rotational speed for the tool causes a more significant wear loss, whilst a higher welding speed reduces wear and increases resistance. Microstructural alteration in grain refinement and dynamic recrystallization during welding also shows that the tensile strength and microhardness matrix are significantly affected by the tool rpm and welding speeds used to weld the joint. Wear characteristics of welded butt joints are studied by examining the morphology of the worn surfaces under a scanning electron microscope. Improved hardness and tensile strength are attained due to second-phase particles in the stir zone. It has been hypothesised that aluminium alloy's wear performance and mechanical properties can be significantly improved by processing butt joints at low tool rotational speed and high welding speed.
Effect of Process Parameters on Wear Behaviour of Friction Stir Welded Heat-Treated Aluminium Alloy AA6063-T6
The proposed research uses the base metal. The butt joints were milled on a vertical milling machine at constant welding speeds (35, 45, 95, and 124 mm/min) and varying tool rpm (750, 1150, 1450, and 1750 rpm). A pin-on-disc tribometer is used for measuring wear rate with a disc revolving at 1200 rpm and a constant applied stress of 40 kN. The study found that a higher rotational speed for the tool causes a more significant wear loss, whilst a higher welding speed reduces wear and increases resistance. Microstructural alteration in grain refinement and dynamic recrystallization during welding also shows that the tensile strength and microhardness matrix are significantly affected by the tool rpm and welding speeds used to weld the joint. Wear characteristics of welded butt joints are studied by examining the morphology of the worn surfaces under a scanning electron microscope. Improved hardness and tensile strength are attained due to second-phase particles in the stir zone. It has been hypothesised that aluminium alloy's wear performance and mechanical properties can be significantly improved by processing butt joints at low tool rotational speed and high welding speed.
Effect of Process Parameters on Wear Behaviour of Friction Stir Welded Heat-Treated Aluminium Alloy AA6063-T6
J. Inst. Eng. India Ser. D
Khatak, Naveen (author) / Kaushik, Prabhakar (author) / Kumar, Rajesh (author)
Journal of The Institution of Engineers (India): Series D ; 105 ; 1563-1573
2024-12-01
11 pages
Article (Journal)
Electronic Resource
English
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