EP 0035718 B1 19840808 - PROCESS FOR THE PRODUCTION OF A DEEP-DRAWING SHEET OR STRIP FROM ALUMINUM OR - ALLOY
Title (en)
PROCESS FOR THE PRODUCTION OF A DEEP-DRAWING SHEET OR STRIP FROM ALUMINUM OR - ALLOY
Publication
Application
Priority
DE 3008679 A 19800306
Abstract (en)
[origin: US4634475A] Deep-drawable aluminum sheet or strip wherein the surface of a roller is blasted with broken cast steel to profile the roller, the roller is used to roll the sheet or strip to impart a microroughness consisting predominantly of steep-flank slender peaks separated by troughs thereto, and the peaks are then soft-annealed.
IPC 1-7
IPC 8 full level
B21D 22/20 (2006.01); C22F 1/04 (2006.01)
CPC (source: EP US)
C22F 1/04 (2013.01 - EP US)
Citation (examination)
- US 3487674 A 19700106 - FUJIMOTO SHUN, et al
- AT 345236 B 19780911 - ALUSUISSE [CH]
- AT 347387 B 19781227 - ALUSUISSE [CH]
Designated contracting state (EPC)
AT FR GB IT NL SE
DOCDB simple family (publication)
EP 0035718 A1 19810916; EP 0035718 B1 19840808; AT E8853 T1 19840815; DE 3008679 A1 19810910; DE 3008679 C2 19830818; US 4634475 A 19870106
DOCDB simple family (application)
EP 81101433 A 19810227; AT 81101433 T 19810227; DE 3008679 A 19800306; US 45317682 A 19821227