EP 4038214 A1 20220810 - ALUMINUM ALLOY PRECISION PLATES
Title (en)
ALUMINUM ALLOY PRECISION PLATES
Title (de)
PRÄZISIONSPLATTEN AUS ALUMINIUMLEGIERUNG
Title (fr)
TOLES DE PRECISION EN ALLIAGE D'ALUMINIUM
Publication
Application
Priority
- FR 1911024 A 20191004
- FR 2020051704 W 20200929
Abstract (en)
[origin: WO2021064320A1] The present invention relates to plates with a thickness of between 8 and 50 mm made of aluminum alloy having the following composition, in % by weight: Si: 0.7 - 1.3; Mg: 0.6 - 1.2; Mn: 0.65 - 1.0; Fe: 0.05 - 0.35; at least one element chosen from Cr: 0.1 - 0.3 and Zr: 0.06 - 0.15; Ti < 0.15; Cu < 0.4; Zn < 0.1; other elements < 0.05 each and < 0.15 in total, remainder aluminum and to the method for manufacturing same. The plates according to the invention are particularly useful as precision plates, notably for the production of machine elements, for example assembly or control tools. The plates according to the invention have an improved dimensional stability notably during machining steps, while having sufficient static mechanical properties, and an excellent anodizability.
IPC 8 full level
C22F 1/043 (2006.01); B21B 3/00 (2006.01); C22C 21/00 (2006.01); C22C 21/02 (2006.01); C22C 21/08 (2006.01); C22F 1/00 (2006.01); C22F 1/05 (2006.01)
CPC (source: CN EP KR US)
C22C 21/00 (2013.01 - CN EP); C22C 21/02 (2013.01 - CN EP KR US); C22C 21/08 (2013.01 - CN KR); C22F 1/002 (2013.01 - CN EP KR); C22F 1/04 (2013.01 - CN); C22F 1/043 (2013.01 - CN EP KR US); C22F 1/047 (2013.01 - CN); C22F 1/05 (2013.01 - CN); C22C 21/08 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3101641 A1 20210409; FR 3101641 B1 20220121; CN 114450425 A 20220506; CN 114450425 B 20240405; EP 4038214 A1 20220810; KR 20220084288 A 20220621; US 2022389557 A1 20221208; WO 2021064320 A1 20210408
DOCDB simple family (application)
FR 1911024 A 20191004; CN 202080067910 A 20200929; EP 20793025 A 20200929; FR 2020051704 W 20200929; KR 20227012016 A 20200929; US 202017765345 A 20200929