The method used in this reseacrh is experimental. This aims to determine the effect of variations in weld joint seam in Shielded Metal Arc Welding (SMAW) welding on the bending strength of 6063 aluminium plate. There are three specimens used in this study, each specimen was carried out with variations of seam, namely seam v, seam ½ v dan camph k. The result of this research is that the frist s…