EP 2048259 A1 20090415 - PROCESS FOR PRODUCTION OF ALUMINUM ALLOY FORMINGS, ALUMINUM ALLOY FORMINGS AND PRODUCTION SYSTEM
Title (en)
PROCESS FOR PRODUCTION OF ALUMINUM ALLOY FORMINGS, ALUMINUM ALLOY FORMINGS AND PRODUCTION SYSTEM
Title (de)
VERFAHREN ZUR HERSTELLUNG VON ALUMINIUMLEGIERUNGSFORMLINGEN, ALUMINIUMGELIERUNGSFORMLINGE UND PRODUKTIONSSYSTEM
Title (fr)
PROCÉDÉ DE PRODUCTION DE PIÈCES FORGÉES EN ALLIAGE D'ALUMINIUM, PIÈCES FORGÉES EN ALLIAGE D'ALUMINIUM ET SYSTÈME DE PRODUCTION
Publication
Application
Priority
- JP 2007065331 W 20070731
- JP 2006209898 A 20060801
Abstract (en)
The present invention are to provide a method for producing an aluminum-alloy shaped product that exhibits high-temperature mechanical strength superior to that of a conventional aluminum-alloy forged product. The present invention provides a method for producing an aluminum-alloy shaped product, comprising a step of forging a continuously cast rod of aluminum-alloy serving as a forging material, in which the aluminum-alloy contains Si in an amount of 10.5 to 13.5 mass %, Cu in an amount of 2.5 to 6 mass %, Mg in an amount of 0.3 to 1.5 mass % and Ni in an amount of 0.8 to 4%, and satisfies a relational expression of "Ni (% by mass) ‰¥ (-0.68 × Cu(% by mass)+4.2(% by mass)),and heat treatment and heating steps including a step of subjecting the forging material to pre-heat treatment (82), a step (87) of heating the forging material during a course of forging of the forging material and a step of subj ecting an aluminum-alloy shaped product to post-heat treatment (89), said pre-heat treatment(82) including treatment of maintaining the forging material at a temperature of -10 to 480°C for two to six hours.
IPC 8 full level
B21J 1/02 (2006.01); B21J 5/00 (2006.01); B21K 1/18 (2006.01); B22D 11/00 (2006.01); B22D 11/045 (2006.01); B22D 21/00 (2006.01); C22C 21/02 (2006.01); C22F 1/00 (2006.01); C22F 1/043 (2006.01); F02F 3/00 (2006.01)
CPC (source: EP KR US)
B21J 1/02 (2013.01 - EP US); B21J 5/00 (2013.01 - EP KR US); B21K 1/18 (2013.01 - EP US); B22D 11/003 (2013.01 - EP US); B22D 11/045 (2013.01 - EP US); B22D 11/18 (2013.01 - KR); B22D 21/007 (2013.01 - EP US); C22C 21/02 (2013.01 - EP KR US); C22F 1/00 (2013.01 - EP US); C22F 1/043 (2013.01 - EP KR US); F02F 3/0084 (2013.01 - EP US); F05C 2201/021 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 2048259 A1 20090415; EP 2048259 A4 20150318; CN 101522935 A 20090902; CN 101522935 B 20120926; JP WO2008016169 A1 20091224; KR 20090046868 A 20090511; US 2010006192 A1 20100114; WO 2008016169 A1 20080207
DOCDB simple family (application)
EP 07792004 A 20070731; CN 200780036441 A 20070731; JP 2007065331 W 20070731; JP 2008527820 A 20070731; KR 20097003877 A 20090225; US 37604407 A 20070731