Title:
PROCESS FOR MANUFACTURING AN ALUMINIUM ALLOY PART
Document Type and Number:
WIPO Patent Application WO/2020/070453
Kind Code:
A8
Abstract:
A process for manufacturing a part (20) comprising a formation of successive metal layers (20i...20n), superimposed on one another, wherein each layer is formed by the deposition of a filler metal (15, 25), 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 (15, 25) 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.≤
Inventors:
CHEHAB BECHIR (FR)
Application Number:
PCT/FR2019/052348
Publication Date:
June 11, 2020
Filing Date:
October 03, 2019
Export Citation:
Assignee:
C TEC CONSTELLIUM TECH CENTER (FR)
International Classes:
B22F3/105; B22F1/00; B33Y40/00; B33Y70/00; C22C1/04
Attorney, Agent or Firm:
C-TEC CONSTELLIUM TECHNOLOGY CENTER (FR)
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