EP 3279350 A1 20180207 - METHOD FOR PRODUCING AN OBJECT MADE FROM A HARDENABLE ALUMINIUM ALLOY
Title (en)
METHOD FOR PRODUCING AN OBJECT MADE FROM A HARDENABLE ALUMINIUM ALLOY
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES GEGENSTANDES AUS HÄRTBARER ALUMINIUMLEGIERUNG
Title (fr)
PROCÉDÉ DE PRODUCTION D'UN OBJET FABRIQUÉ À PARTIR D'UN ALLIAGE D'ALUMINIUM DURCISSABLE
Publication
Application
Priority
EP 16182951 A 20160805
Abstract (en)
The invention concerns a method for producing an object (1) made from a hardenable aluminium alloy, the method comprising: providing a raw product of the hardenable aluminium alloy; heating the raw product of the hardenable aluminium alloy to an elevated temperature in order to dissolve precipitates; optionally holding the raw product of the hardenable aluminium alloy at the elevated temperature for a predetermined time; rapidly quenching the raw product of the hardenable aluminium alloy to a temperature lower than the elevated temperature in order to maintain at least partly dissolved precipitates within the aluminium alloy; forming the raw product of the hardenable aluminium alloy to produce the object (1) below a temperature of 0 °C, in particular below -150 °C, to produce the object (1). Furthermore, the invention comprises a structured component obtainable by this method.
IPC 8 full level
C22C 21/08 (2006.01); C22C 21/10 (2006.01); C22F 1/05 (2006.01); C22F 1/053 (2006.01)
CPC (source: EP)
C22C 21/08 (2013.01); C22C 21/10 (2013.01); C22F 1/05 (2013.01); C22F 1/053 (2013.01)
Citation (applicant)
- US 4159217 A 19790626 - SELINES RONALD J [US], et al
- P. J. BOLT; N. A. P. M. LAMBOO; P. J. C. M. ROZIER: "Feasibility of warm drawing of aluminium products", J. MATER. PROC. TECHN., vol. 115, 2001, pages 118
- X. FAN; Z. HE; S. YUAN; K. ZHENG: "Experimental investigation on hot forming-quenching integrated process of 6A02 aluminum alloy sheet", MATER. SCI. ENG. A., vol. 573, 2013, pages 154
- P. A. FRIEDMAN; S. G. LUCKEY; W. B. COPPLE; R. ALLOR; C. E. MILLER; C. YOUNG: "Overview of superplastic forming research at ford motor company", J. MATER. ENG. PERFORM., vol. 13, 2004, pages 670
- G. FALKINGER; F. GRABNER; G. SCHMID; R. SCHNEIDER; R. J. GRANT: "Improved formability of AA5182 aluminium alloy sheet at cryogenic temperatures", MATER. TODAY PROC., vol. 2, 2015, pages 113
- L. M. CHENG; W. J. POOLE; J. D. EMBURY; D. J. LLOYD: "The influence of precipitation on the work-hardening behavior of the aluminum alloys AA6111 and AA7030", METALL. MATER. TRANS. A., vol. 34, 2003, pages 2473
Citation (search report)
- [X] US 4643779 A 19870217 - ABBASCHIAN GHOLAMREZA J [US], et al
- [X] JP H0681066 A 19940322 - KOBE STEEL LTD
- [X] MARKUSHEV M V ET AL: "Microstructure and properties of an aluminum D16 alloy subjected to cryogenic rolling", RUSSIAN METALLURGY (METALLY), NAUKA/INTERPERIODICA, MO, vol. 2011, no. 4, 17 August 2011 (2011-08-17), pages 364 - 369, XP019940538, ISSN: 1555-6255, DOI: 10.1134/S0036029511040136
- [X] FRITSCH S ET AL: "Cryogenic forming of AA7075 by Equal-Channel Angular Pressing // Kryogenes Umformen der Aluminiumlegierung EN AW-7075 durch ECAP", MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, WILEY - V C H VERLAG GMBH & CO. KGAA, DE, vol. 43, no. 7, 1 July 2012 (2012-07-01), pages 561 - 566, XP002745180, ISSN: 0933-5137, [retrieved on 20120723], DOI: 10.1002/MAWE.201200001
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)
EP 3279350 A1 20180207; EP 3279350 B1 20200108; ES 2783599 T3 20200917
DOCDB simple family (application)
EP 16182951 A 20160805; ES 16182951 T 20160805