Pulsed current arc welding procedure for aluminium alloy components uses feed wire electrode delivered at pulsed speed corresponding to current pulses

摘要

The pulsed current arc welding procedure for aluminium alloy components, carried out with an inert gas protection, in which an electric arc welding torch is fed with a fusible wire that acts as an electrode, has the wire delivered at a rate that is pulsed between maximum and minimum values to induce a supplementary current pulse corresponding to 'hot' and 'cold' time periods that can be varied according to the thickness of the components being welded.