Method of forming high fragmentation mortar shells

Details Method of forming high fragmentation mortar shells Method of forming high fragmentation mortar shells

1978-12-14

1981-01-27

Tudor, Harold J.

Ammunition and explosives

Igniting devices and systems

29 12, 148 12R, 148 12F, F42B 1348

Patent

active

042468442

ABSTRACT:
The method and product, for forming ordnance shells such as mortar shells and other explosive projectiles wherein the fragmenation count or shattering of the shell upon explosion is greatly increased over standard shells produced in a conventional manner.
The method includes special heat treatment of the shell or projectile during initial stages of its formation whereby the molecular structure of steel used is changed principally from lamellar to spheroidal.

REFERENCES:
patent: 1310075 (1919-07-01), Hadfield et al.
patent: 1407254 (1922-02-01), Cox
patent: 2044780 (1936-06-01), Hardigg
patent: 2183502 (1939-12-01), Lefere
patent: 3513038 (1970-05-01), Weil
patent: 3547032 (1970-12-01), Horvath, Jr.
patent: 3676907 (1966-02-01), Magis
patent: 3791881 (1974-02-01), Hayes
The Making, Shaping and Treating of Steel, Edited by Harold McGannon, USS 8 Edition 1964, p. 1057.
Physical Mettalurgy for Engineers, by Clark and Varney, Van Nostrand Com. Inc., Sep. 1962, pp. 158 & 159.

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