BUILD UP WELDING METHOD FOR METAL PIECES OF ALUMINIUM BY PULSED CURRENT AND PULSED WELDING MATERIAL FEEDING MIG WELDING

摘要

A method for hard surface deposition on aluminium metal parts of a turbine engine using MIG welding equipment which includes a pulsed current generator and pulsed filler metal wire feed, wherein the deposition is achieved using a filler metal wire whose composition is of the same nature as the composition of the aluminium alloy of the part to undergo hard surface deposition, with the pulsed metal wire feed and speed of deposition on the metal part of the turbine engine being adapted to carry out deposition without hot fissuring.