EP 0349446 B1 19921216 - PROCESS FOR DIRECTLY FORMING AND FOR OPTIMIZING THE CHARACTERISTICS OF ARMOUR-PIERCING PROJECTILES MADE OF HIGH-DENSITY TUNGSTEN ALLOYS
Title (en)
PROCESS FOR DIRECTLY FORMING AND FOR OPTIMIZING THE CHARACTERISTICS OF ARMOUR-PIERCING PROJECTILES MADE OF HIGH-DENSITY TUNGSTEN ALLOYS
Publication
Application
Priority
FR 8808888 A 19880622
Abstract (en)
[origin: EP0349446A1] This invention relates to a process for directly forming and for optimising the mechanical characteristics of armour-piercing projectiles. <??>This process involves using a blank of ductile heavy metal having an axis of revolution and mass per unit volume at least equal to 17000 kg/m<3> and is characterised in that the said roughly prepared blank is subjected to a finishing treatment at a temperature between ambient temperature and 500 DEG C and at a rate variable in a direction parallel to the axis of the blank. <??>This process is used in military munitions. <IMAGE>
IPC 1-7
IPC 8 full level
B22F 3/24 (2006.01); C22C 1/04 (2006.01); C22C 27/04 (2006.01); C22F 1/00 (2006.01); C22F 1/18 (2006.01); F42B 12/06 (2006.01); F42B 12/74 (2006.01)
CPC (source: EP KR US)
B22F 3/24 (2013.01 - KR); C22C 1/045 (2013.01 - EP US); F42B 12/74 (2013.01 - EP US)
Citation (examination)
EP 0143775 A2 19850605 - VOEST ALPINE AG [AT]
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0349446 A1 19900103; EP 0349446 B1 19921216; AT E83556 T1 19930115; AU 3669189 A 19900104; AU 615077 B2 19910919; BR 8903010 A 19900206; CA 1316017 C 19930413; DE 68903894 D1 19930128; DE 68903894 T2 19930422; EG 20301 A 19981031; ES 2036365 T3 19930516; FR 2633205 A1 19891229; FR 2633205 B1 19920430; GR 3006568 T3 19930630; IL 90684 A0 19900118; IL 90684 A 19930131; IN 171550 B 19921114; JP H0297652 A 19900410; JP H0776413 B2 19950816; KR 900000140 A 19900130; KR 940009657 B1 19941015; SG 12893 G 19930521; US 5069869 A 19911203; ZA 894717 B 19910227
DOCDB simple family (application)
EP 89420225 A 19890620; AT 89420225 T 19890620; AU 3669189 A 19890621; BR 8903010 A 19890621; CA 603468 A 19890621; DE 68903894 T 19890620; EG 30489 A 19890620; ES 89420225 T 19890620; FR 8808888 A 19880622; GR 920402887 T 19921217; IL 9068489 A 19890620; IN 417CA1989 A 19890531; JP 15937389 A 19890621; KR 890008568 A 19890620; SG 12893 A 19930206; US 69750091 A 19910503; ZA 894717 A 19890621