Dissimilar joining metal of aluminum 6061 and galvanized pipe using friction welding method

The welding process is usually performed for joining, similar material. This research aims to study similar metals at low carbonese ST 37 with friction welding method. Traditional welding the electrode used, than welding result dirty, slag, crack and also deformation cause residual stress usually. In this study, the specimens used are in galvanized pipes with a 1.5 “diameter, 110 mm long and bushing made with aluminum 6061 which has 1.5” diameter with 30 mm long. The process of friction welding is done using a lathe with a speed of 860 rpm. The purpose of this study is to find out how strong the weld, the hardness value, and the micro structure result by doing friction welding method. The result of this research is bushing connection and galvanized pipe at welded area with temperature 225.8 ° C are 127,68 VHN and 55,86 VHN. The largest value of the tensile strength test is 8380N.