OPTIMASI KUALITAS HASIL PENGELASAN FRICTION STIR WELDING (FSW) SAMBUNGAN SIMILAR PADUAN ALUMINIUM AA 6061

Muhammad Arsyad Suyuti, Tri Agus Susanto

Abstract


Friction Stir Welding (FSW) is a technique of material connection in solid state conditions and is widely used to
connect aluminum alloys in aerospace, shipping, automotive, defense and more applications in other sector. FSW
welding results can produce better mechanical properties in the welding zone compared to other conventional
welding techniques. FSW experiments were conducted using a vertical milling machine with AA 6061 alloy
material. The main objective of this study was to determine the optimum operating conditions in the FSW butt joints
of aluminum alloy material AA 6061. Rotation speed and welding speed were taken as process parameters. Analysis
of variance (ANOVA) through software design of expert is used to reveal the effect of different welding parameters
on ultimate tensile strength and hardness to obtain optimum parameters. The optimum result is predicted that the
ultimate tensile strength can be reached 192.129 MPa and the hardness value is 66.818 HB

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