The Effect of Grain Size in a 1565chM Alloy Sheets Structure on a Structure and Properties of Joints Made by the Friction Stir Welding Technique
The results of studies concerning the effect of initial grain size in a 1565chM aluminium alloy structure on mechanical properties of joints made by the friction stir welding technique, as well as on grain size in the weld kernel are shown. It has been found that „ tool design and especially helical groove parameters have a very significant effect on „ grain size in the weld kernel.