EP 3048179 B1 20170524 - Method for forming complex cast parts and cast part consisting of an AlCu alloy
Title (en)
Method for forming complex cast parts and cast part consisting of an AlCu alloy
Title (de)
Verfahren zum Herstellen von komplex geformten Gussteilen und Gussteil bestehend aus einer AlCu-Legierung
Title (fr)
Procédé de fabrication de pièces moulées de forme complexe et pièce moulée constituée d'un alliage AlCu
Publication
Application
Priority
EP 15151960 A 20150121
Abstract (en)
[origin: WO2016116805A1] The invention thus provides a method for the practical, operationally reliable production of castings from an AlCu alloy, which consists of (in % by weight) Cu: 6 - 8%, Mn: 0.3 - 0.55%, Zr: 0.15 - 0.25%, Fe: up to 0.25%, Si: up to 0.125%, Ti: 0.05-0.2%, V: up to 0.04%, the remainder Al and unavoidable impurities. A molten material obtained in accordance with this alloying specification is kept at 730 to 810°C for 4 - 12 hours and then vigourously mixed at least once. The molten material is subsequently cast batchwise to form the respective casting, which is then solution-annealed at 475 - 545°C for 1 - 16 hours. Starting from the solution-annealing temperature, the casting is quenched to at most 300°C, with a cooling rate of 0.75 – 15 K/s being adopted when the temperature range from 500 - 300°C is passed through in the course of the quenching. After that, the casting is artificially aged at 150 - 300°C over a period of 1 - 10 h. Finally, the casting is cooled down to room temperature.
IPC 8 full level
C22C 21/12 (2006.01); C22F 1/057 (2006.01)
CPC (source: CN EP KR RU US)
B22D 21/007 (2013.01 - EP US); C21D 1/667 (2013.01 - EP US); C22C 21/12 (2013.01 - CN EP KR RU US); C22C 21/14 (2013.01 - CN EP KR US); C22F 1/002 (2013.01 - EP US); C22F 1/057 (2013.01 - CN EP KR US)
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
DOCDB simple family (publication)
EP 3048179 A1 20160727; EP 3048179 B1 20170524; BR 112017014023 A2 20180102; BR 112017014023 B1 20210126; CN 107208199 A 20170926; CN 107208199 B 20200605; ES 2633026 T3 20170918; JP 2018509525 A 20180405; JP 6359778 B2 20180718; KR 101891226 B1 20180824; KR 20170123307 A 20171107; MX 2017009062 A 20171113; PL 3048179 T3 20171229; RU 2670627 C1 20181024; TW 201636436 A 20161016; TW I583803 B 20170521; US 10081856 B2 20180925; US 2017362690 A1 20171221; WO 2016116805 A1 20160728
DOCDB simple family (application)
EP 15151960 A 20150121; BR 112017014023 A 20160121; CN 201680006763 A 20160121; ES 15151960 T 20150121; IB 2016000036 W 20160121; JP 2017538321 A 20160121; KR 20177020538 A 20160121; MX 2017009062 A 20160121; PL 15151960 T 20150121; RU 2017129447 A 20160121; TW 105100900 A 20160113; US 201615545062 A 20160121