CMT, or Cold Metal Transfer, is a modified GMAW process in that it retracts the wire when detecting a short, allowing for cooling of the weld before the next drop which results in smoother and stronger weld. In this setup: the torch diameter is 21.1 mm while the wire diameter is 1.2 mm thick. The protection gas used was Argon 68%, Helium 30%, CO2 2%. In this test the wire feeding speed was 13,5 cm/s. Cavitar Ltd used a Phantom Camera V2640 together with their CAVILUX laser illumination, and reco