A relatively new alternative technology for joining multi material structures i e.
Spot friction welding for sheet aluminum joining.
Aluminum to steel is friction stir spot welding using a conventional 1 piece tool design in this procedure a tool made of refractory alloy such as w 25re or pcbn is rotated and penetrated through the low melting point non ferrous alloy located on the top of the lap weld and the tool pin plunged.
The dissimilar spot welding of aluminum and steel sheet with insert of aluminum clad steel sheet was investigated.
This paper studies a hybrid friction stir resistance spot welding process for joining aluminum alloy 6061 t6 to trip 780 steel.
An effective electrically assisted fssw experimental system has been developed which enables a high density electrical current in the weld zone with the tool passively involved in the circuit.
Several joining methods have been successfully adapted to join aluminium sheet metal parts including resistance spot welding rsw 12 13 self piercing riveting spr 14 15 friction stir.
Korzeniowski journal archives of civil and mechanical engineering year 2010 volume 10 pages.