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Method and device for producing a tubular solid body from a refractory tungsten heavy metal alloy, particularly as a semi-finished product for the production of a penetrator for a kinetic energy projectile with fragmentation effect

a technology of heavy metal alloys and solid bodies, which is applied in the direction of liquid bottling, packaging goods, special packaging, etc., can solve the problems of inconvenient production and high technical cost, and achieve the effect of good fragmentation

Inactive Publication Date: 2011-07-21
RHEINMETALL WAFFE MUNITION GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0012]The length and diameter are variable and are currently limited not by the method itself, but rather by the conventional manufacturing plants. However, this has the advantage that available manufacturing plants can be used.
[0016]After the pressing, the green preform is sintered in one or more passes, as a result of which workpieces with solid body properties are produced from the compact through known measures. For example, tubes for the production of penetrators with very good fragmentation effect are created, which effect can be adjusted via the ratio of inner to outer diameter and the corresponding material or the material composition.

Problems solved by technology

This method is technically very laborious and not economical.

Method used

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  • Method and device for producing a tubular solid body from a refractory tungsten heavy metal alloy, particularly as a semi-finished product for the production of a penetrator for a kinetic energy projectile with fragmentation effect
  • Method and device for producing a tubular solid body from a refractory tungsten heavy metal alloy, particularly as a semi-finished product for the production of a penetrator for a kinetic energy projectile with fragmentation effect
  • Method and device for producing a tubular solid body from a refractory tungsten heavy metal alloy, particularly as a semi-finished product for the production of a penetrator for a kinetic energy projectile with fragmentation effect

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Embodiment Construction

[0021]FIGS. 1a, b show a filler device or filler mold 1 for the production of a tubular solid body 10, here closed on one side (c.f., FIG. 2). The filler device, as shown in FIG. 1a, comprises an outer tube 2 (preferably made of steel), in which bores are situated on the jacket- and base surface at regular intervals. In this outer tube 2, an extrusion die 3 (preferably made of polyurethane), a filler piece 4 (preferably made of metal), and a filler tube 5 are attached concentrically. The concentricity of the filler piece 4 is ensured by a centering disk 6 (preferably made of polyurethane) at the bottom end, and the centering part 7 of the filler tube 5 placed on the filler piece at the top end. The centering part 7 and the filler tube 5 are permanently connected to one another. An intermediate space 8 forming between the extrusion die 3 and filler piece 4 is filled thereby. After the filler device of FIG. 1a has been filled with the metal powder mixture up to the upper end of the fi...

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Abstract

The invention relates to a filler device (1) comprising an exterior tube (2) having an extrusion die (3) located therein and a filler piece (4) that is filled with a metal powder mixture in the intermediate space (8) formed between the filler piece (4) and the extrusion die (3), whereupon the intermediate space is closed. In order to compact the metal powder, the filler device (1) is placed in a hydrostatic pressing system and the metal powder mixture is pressed into a green preform. The pressed tubes are subsequently sintered in one or more passes through a furnace, for which purpose the pressed tubes are subjected to a preselected time / temperature progression so as to ensure that a melt of tungsten (W) forms and contracts evenly in all directions so that a geometrically desired solid body results after sintering.

Description

[0001]This is a National Phase Application in the United States of International Patent Application No. PCT / EP2008 / 005800 filed Jul. 16, 2008, which claims priority on German Patent Application No. DE 10 2007 037 702.0, filed Aug. 9, 2007. The entire disclosures of the above patent applications are hereby incorporated by reference.FIELD OF THE INVENTION [0002]The invention relates to a method and a device for producing a tubular solid body from a refractory tungsten heavy metal alloy, particularly, as a semi-finished product for the production of a penetrator for a kinetic energy projectile with fragmentation effect.BACKGROUND OF THE INVENTION [0003]Kinetic energy projectiles with a solid penetrator of WSM (tungsten heavy metal) are known. These so-called kinetic energy penetrators are optimized to a maximum penetration depth in armored targets and serve to combat enemy battle tanks.[0004]For specific munitions such as, for example, Penetrator with Enhanced Lateral Effect (PELE), Ac...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B22F3/12B22F1/00B22F3/24B65B1/04
CPCB22F3/1035B22F3/24B22F5/106B22F2998/00B22F2999/00C22C1/045F42B12/22F42B33/0242B22F3/004B22F2003/248B22F3/17
Inventor BEISTER, KLAUS-DIETEROUDELHOVEN, RENEVAGEDES, MICHAEL
Owner RHEINMETALL WAFFE MUNITION GMBH
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