EP 0848073 B1 20020508 - Stress relieving of an age hardenable aluminium alloy product
Title (en)
Stress relieving of an age hardenable aluminium alloy product
Title (de)
Spannungsfreimachen eines Werkstücks aus aushärtbaren Aluminium-Legierung
Title (fr)
Détensionnement d'une pièce en alliage d'aluminium durcissable
Publication
Application
Priority
- EP 97203934 A 19971215
- EP 96203563 A 19961216
Abstract (en)
[origin: EP0848073A1] Stress relieving of an age hardenable aluminium alloy product after solution heat treatment and quenching, is carried out by a permanent cold plastic deformation applied by the steps of:- (a) applying a stress-relieving cold mechanical stretch to said product, and (b) applying a stress-relieving cold compression to said product. This combined treatment gives improved strength and toughness and at least comparable distortion after machining.
IPC 1-7
IPC 8 full level
C22F 1/04 (2006.01); C22F 1/043 (2006.01); C22F 1/053 (2006.01); C21D 1/30 (2006.01)
CPC (source: EP)
C22F 1/04 (2013.01); C22F 1/043 (2013.01); C22F 1/053 (2013.01); C21D 1/30 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 97203934 A 19971215