METHOD OF MANUFACTURING A FRANGIBLE NONSINTERED POWDER-BASED PROJECTILE

Title:

METHOD OF MANUFACTURING A FRANGIBLE NONSINTERED POWDER-BASED PROJECTILE

Document Type and Number:

WIPO Patent Application WO2000033014

Kind Code:

A3

Abstract:

A method for the manufacture of heavy metal powder-based frangible projectiles which are relatively easy and inexpensive to manufacture and which exhibit a selectable variety of desirable physical and/or performance properties. The projectiles of the present invention are powder-based, preferably including predominantly tungsten powder as a heavy metal, particularly a tungsten powder which includes a predominate portion of finely sized particles. Lighter metal powders, also preferably having a predominate portion of finely sized particles, may be employed in combination with the tungsten to achieve certain desired results. Importantly, the present inventor has found that inclusion of a non-metal matrix powder, also of finely sized particles, in a mixture of a heavy metal powder, such as tungsten powder, and a light metal powder, may be employed in a variety of combinations to produce a projectile which is fully frangible upon striking a target (no ricochet), or which is frangible after either partial or full penetration of a selected target, either a semi-solid (e.g., a gel block) or a solid (e.g., a 1/4 inch thick cold rolled steel plate at an angle of about 90 degrees).

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Inventors:

BEAL HAROLD F (US)

Application Number:

PCT/US1999/027871

Publication Date:

September 14, 2000

Filing Date:

November 24, 1999

Export Citation:

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Assignee:

BEAL HAROLD F (US)

International Classes:

F42B12/74; (IPC1-7): F42B12/72

Foreign References:

US6048379A	2000-04-11
US4949645A	1990-08-21
US5237930A	1993-08-24
US5719352A	1998-02-17

Other References: