Joining Efficiency and Optimization of Nylon 6 Plate by Friction Stir Welding Process Using Threaded Pin Profile

Manufacturing Engineering

The use of polymeric materials has grown widely in various sectors such as packaging, building, electronic, automotive, and aerospace industries. Particularly, Nylon 6 has wide engineering applications and is used in large quantities in automotive oil pans, gears, slides, cams, bearings, fluid reservoirs, and the sports industry. Friction Stir Welding (FSW) is a solid-state process in joining thermoplastic materials. In this investigation, FSW process has to be applied to join a Nylon 6 plate of 8mm thickness with specially designed threaded tool pin profile. The research will be applied Taguchi Method on nylon-6 specimen of dimensions 100 × 100 × 8 mm, which have following parameters: various RPM, Feed and Axial Load. The experiments will be done in following aspects: Ultimate tensile strength and other mechanical properties. The main objective of the experimental of factors affecting to mechanical property of nylon-6 with FSW at different welding parameters and it has to be followed by L4 arrays. In this research work threaded tool profile was used. Highest tensile strength obtained with maximum speed and tool traverse with low axial force parameter. 1200 rpm, 20 mm/min and 8KN of axial force has the highest tensile strength which is 9.59 N/mm2. During the investigation found hardness strength low value obtained with parameter 1200 rpm, 15 mm/min and 10KN of axial force has the lowest Hardness strength which is 27 HRL. No Angle distortion found at second and third test plate.

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