FIELD: production of seamless shell cases. SUBSTANCE: shell case has a mouth, body with a cylindrical inner surface conjugate to the bottom in radius, and a flange. The radius of the body inner surface is within 18.3 to 30.1 of the radius of conjugation of the bottom to the body inner surface. Tapered sections of different taper are made on the outer surface of the body on the side of the flange, the first section from the flange has a larger taper, relative to the subsequent ones, the distance from the flange to the end of the last section equals 3.6 to 7.6 of the radius of conjugation of the bottom to the body. In another design variant a cylindrical section is made before the first tapered section on the side of the flange, the distance from the flange to the point of conjugation of the tapered section to the cylindrical one equals 1.7 to 3.1 of the radius of conjugation of the bottom to the body. EFFECT: improved design. 2 cl, 2 dwg
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Authors
Dates
1997-12-27—Published
1996-02-20—Filed