Cold Metal Transfer Aluminum Welding. Preliminary results are presented examining the suitability of this process for welding aluminium alloy. Pure titanium ta2 and aluminum alloy 6061 t6 are joined using alsi5 filler wire by cold metal transfer cmt process in the form of two lap configurations.
However there are limited reports on studying the effects of cmt welding parameters on the weld quality. The intermetallic layer which forms at the bonding interface in dissimilar welding of aluminum alloys to steel is the most important characteristic feature influencing the mechanical properties of the joint. A process launched in 2004 known as cold metal transfer cmt was regarded as an option for root welding solution since it operates in the short circuit transfer in a highly controlled manner.
The motivation behind the invention of the process was the need for efficient cladding or the bonding of two different types of metals eg aluminum with steel.
Pure titanium ta2 and aluminum alloy 6061 t6 are joined using alsi5 filler wire by cold metal transfer cmt process in the form of two lap configurations. Basically the distinction from the conventional gmaw process is that cmt controls the current. During welding the wire moves forward and is pulled. This low heat input during welding ensu res no spatter welding process and improved weld bead aesthetics with controlled metal deposition.