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Warhead casing

  • US 5,000,093 A
  • Filed: 09/25/1980
  • Issued: 03/19/1991
  • Est. Priority Date: 09/25/1980
  • Status: Expired due to Term
First Claim
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1. A method of fabricating warhead casings which comprises the following steps in order:

  • (1) mixing magnesium powder and aluminum powder in a Mg-Al weight ratio from about 22;

    78 to about 28;

    72, said magnesium and aluminum powder having an average particle size within about 80 percent of each other and having an average particle size less than about 150 microns;

    (2) isostatically pressing said powder mixture into a preform with the configuration of said warhead casing with a density from about 20 to 40 percent of the theoretical density;

    (3) releasing said pressure;

    (4) heating said preform at a temperature from about 350 C. to about 425 C. in an inert atmosphere until said preform reaches a density from about 60 to about 70 percent of the theoretical density;

    (5) cooling said preform to room temperature.

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