EP 0297035 A1 19881228 - Aluminium alloy for superplastic deformation.
Title (en)
Aluminium alloy for superplastic deformation.
Title (de)
Aluminiumlegierung für superplastische Umformung.
Title (fr)
Alliage d'aluminium pour déformation superplastique.
Publication
Application
Priority
CH 235987 A 19870623
Abstract (en)
[origin: US4874578A] An aluminium alloy suitable as a material for superplastic forming contains 0.8-2.5% or iron, 3.5-6.0% of magnesium, 0.1-0.6% of manganese, 0.05-0.5% of zirconium, at most 6.0% of zinc, at most 3.0% of copper, at most 0.3% of silicon, at most 0.05% of titanium and at most 0.05% of chromium, the remainder being aluminium of commercial purity. The alloy can be processed to give superplastically formable sheets without separate thermomechanical pretreatment.
Abstract (de)
Eine als Werkstoff für superplastische Umformung geeignete Aluminiumlegierung enthält 0,8 - 2,5 % Eisen, 3,5 - 6,0 % Magnesium, 0,1 - 0,6 % Mangan, 0,05 - 0,5 % Zirkon, max. 6,0 % Zink, max. 3,0 % Kupfer, max. 0,3 % Silicium, max. 0,05 % Titan, max. 0,05 % Chrom, sowie als Rest Aluminium handelsüblicher Reinheit. Die Legierung lässt sich ohne besondere thermomechanische Vorbehandlung zu superplastisch umformbaren Blechen verarbeiten.
IPC 1-7
IPC 8 full level
C22C 21/06 (2006.01)
CPC (source: EP US)
C22C 21/06 (2013.01 - EP US); Y10S 420/902 (2013.01 - EP US)
Citation (search report)
- [Y] US 4021271 A 19770503 - ROBERTS SIDNEY G
- [Y] FR 2214755 A1 19740819 - BRITISH ALUMINIUM CO LTD [GB]
- [A] DE 2242235 A1 19730308 - SHOWA DENKO KK
- [A] JOURNAL OF MATERIALS SCIENCE, Band 22, Nr. 1, 1987, Seiten 137-143, Chapman and Hall Ltd; A. JUHASZ et al.: "Superplasticity of aluminium alloys grain-refined by zirconium"
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0297035 A1 19881228; EP 0297035 B1 19911218; AT E70566 T1 19920115; DE 3866969 D1 19920130; NO 171171 B 19921026; NO 171171 C 19930203; NO 882735 D0 19880621; NO 882735 L 19881227; US 4874578 A 19891017
DOCDB simple family (application)
EP 88810378 A 19880609; AT 88810378 T 19880609; DE 3866969 T 19880609; NO 882735 A 19880621; US 20908188 A 19880620