EP 0143775 A3 19860625 - SUB-CALIBRE PENETRATOR AND METHOD OF MAKING THE SAME
Title (en)
SUB-CALIBRE PENETRATOR AND METHOD OF MAKING THE SAME
Publication
Application
Priority
- AT 132384 A 19840419
- AT 132484 A 19840419
- AT 177484 A 19840529
- AT 411483 A 19831123
Abstract (en)
[origin: ES8606037A1] The invention relates to a penetrator (1, 11) made of heavy metal, such as, for instance, tungsten heavy metal or depleted uranium, for driving-cage projectiles which have the penetrator led by the driving cage in the gun barrel. The driving cage (6, 12) detaches itself from the penetrator after the launch. The penetrator (1, 11) shows lower strength and higher ductility in the middle portion (d) of its length than in its head portion (c) and, in its tail portion, it shows higher strength and lower ductility than in its middle portion (d) and lower strength and higher ductility than in its head portion (c). This shall decrease the risk of fracture when striking an armour. The varying strength values in the head portion (c), in the middle portion (d) and in the tail portion (e) are obtained by cold-hammering under varying degrees of deformation, by sintering from various powder mixtures or by varying partial heat-treatment in the various portions (head portion c, middle portion d and tail portion e), and these measures can be applied individually or in combination. At least one pilot core (14, 15) which is only loosely connected to the penetrator (1, 11) can also be fitted to the head portion.
IPC 1-7
IPC 8 full level
F42B 12/06 (2006.01)
CPC (source: EP US)
F42B 12/06 (2013.01 - EP US); F42B 14/061 (2013.01 - EP)
Citation (search report)
- [X] GB 1514908 A 19780621 - MALLORY METALLURG PROD LTD
- [X] DE 2848019 B2 19800724
- [X] FR 1212390 A 19600323
- [A] LU 56486 A1 19690521
- [A] FR 1231010 A 19600926 - CIE IND DES METAUX ELECTRONIQU
- [A] US 2401483 A 19460604 - HENSEL FRANZ R, et al
- [A] US 2393648 A 19460129 - MARTIN CARL A
- [A] FR 829623 A 19380701 - ACIERIES DE CHAMPAGNOLE
- [A] FR 363305 A 19060726 - ELIAS MATTISON JOHNSON [US]
- [A] EP 0088898 A1 19830921 - RHEINMETALL GMBH [DE]
Designated contracting state (EPC)
AT BE DE FR GB SE
DOCDB simple family (publication)
EP 0143775 A2 19850605; EP 0143775 A3 19860625; EP 0143775 B1 19890111; AT E40006 T1 19890115; BR 8405954 A 19850917; DE 3476117 D1 19890216; ES 537862 A0 19860401; ES 8606037 A1 19860401; IL 73583 A 19901223; US 4665828 A 19870519
DOCDB simple family (application)
EP 84890215 A 19841114; AT 84890215 T 19841114; BR 8405954 A 19841122; DE 3476117 T 19841114; ES 537862 A 19841122; IL 7358384 A 19841121; US 67417084 A 19841123