High density projectile and method of making same from a mixture

Details High density projectile and method of making same from a mixture High density projectile and method of making same from a mixture

1992-04-29

1994-01-18

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Consolidation of powder prior to sintering

419 37, B22F 312, B22F 902

Patent

active

052797872

ABSTRACT:
Numerous products can be formed by combining a low melting matrix made up of one or more metals and high melting, high density metal particles and wherein the products can be formed by adding the high density particles to a molten matrix metal and casting same, mixing powders of all the metals together, compacting and centering at a temperature in the low end of the melting range of the matrix alloy, or by mixing the high density particles into a paste of the matrix alloy and molding. These methods and compositions are particularly adaptable for use in forming low or non-toxic high density projectiles, such as, shot, bullets and pellets having a density comparable to that of lead while avoiding problems of toxicity associated with the use of lead.

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Beddow, John, "The Production of Metal Powders by Atomization," 1978, Heyden & Son Ltd., p. 26.
Eremenko, V. N., "Liquid-Phase Sintering," Institute of Materials Science, 1970, p. 7.

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