Magnezyum AZ31 alaşiminin sürtünme kariştirma kaynaği ile birleştirilebilirliğinin incelenmesi

In this study, the weldability of rolled AZ31 magnesium sheets has been investigated by friction stir welding. Samples have been welded at different welding parameters such as the 960, 1960 and 2880 rpm rotational speeds and 10 and 20 mm/min transverse speeds. In the experiment shown that the temperatures of between of the friction stir welding shoulder and materials affect mechanical and microstructure properties. In the recrystallization zone temperature has been increased the increase of rotational speed. According to these results, the hardness of recrystallization zone has been measured higher than base material. The microstructure of recrystallization zone, because of recrystallization has been thinner and homogenous than base material. At this results of stress strength test has been detected 93% compared with that of base material. As a result, the highest welding strength has been obtained with A22 coded sample, 1960 rpm rotational speed and 20 mm/min transverse speed.