Process for manufacturing an aluminium alloy part

Abstract

A process for manufacturing a part comprising a formation of successive metal layers, superimposed on one another, wherein each layer is formed by the deposition of a filler metal, the filler metal being subjected to an input of energy so as to melt and to constitute said layer by solidifying, the process being characterized in that the filler metal is an aluminium alloy comprising the following alloy elements (% by weight): —Fe: 2% to 8%, and preferably 2% to 6%, more preferentially 3% to 5%; —optionally Zr: 0.5% to 2.5% or 0.5% to 2% or 0.7% to 1.5%; —optionally Si: <1%, or even <0.5% or even <0.2% or even <0.05%; —optionally Cu: ≤0.5%, or even <0.2%, or even <0.05%; —optionally Mg: ≤0.2%, preferably ≤0.1%, preferably <0.05%; —optionally other alloy elements<0.1% individually and in total<0.5%; —impurities: <0.05%, or even <0.01% individually, and in total<0.15%; remainder aluminium.