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In this study, polyethylene specimens were welded by using friction stir spot welding (FSSW) technique. Welding process was carried out by a rotation of 460 and 900 rpm. Under constant friction force, five different dwell times (20, 40, 60, 80 and 100 s), four different delay times (15, 30, 45 and 60 s) and three different pin profiles (M6 × 1, M6 × 1.25 and M6 × 1.5) were used. During the welding process, temperature measurements under the welding cenetrs were performed using a four multichannel K type digital thermometer. Tensile shear tests were used to characterize the samples. Tensile performance of the samples was significantly affected by the welding parameters.

Influence of welding parameters on the fracture of PE300 polyethylene friction stir spot welds