Pinless Friction Stir Welding For Weld The Thin Plate SPCC

Mohd Abd Wahab, Muhamad Aizat (2018) Pinless Friction Stir Welding For Weld The Thin Plate SPCC. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Pinless friction stir welding (PFSW) provides various advantages on tool design compare to the traditional FSW where it can avoid the wear of the tool and no retained keyholes of fabrication.As a new solid-state welding, pinless friction stir welding (PFSW) can be used to join thin (1 mm thick) SPCC sheet.The aim of this study was to investigate the effect of different parameters (tool rotational speed and welding speed) by conducting a tensile strength test and hardness test after completing the weld joint.The heat history of the SPCC plate under different parameters and the weld properties have been investigated.In this study,PFSW was performed using a CNC vertical milling machine with two different rotational speed (900 and 1050 rpm) and two different welding speed (45 and 75 mm/min).A tool made from steel (H13) was used to make a butt joint configuration.The experimental observations showed that the mechanical properties of PFSW (tensile strength and hardness) decrease with the increasing of rotational speed and the decreasing of the welding speed.However,the rotational speed and welding speed played a more important role in the process which could also be proved by the thermal data tested and recorded by placing K-type thermocouples.The investigation of spindle motor current consumption has been carried out in order to measure the current demand during the welding process.

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