METHOD FOR MAKING BLANKS OF MISSILE BODIES Russian patent published in 2002 - IPC

Abstract RU 2179491 C2

FIELD: plastic metal working, namely processes for forming blanks of missile bodies. SUBSTANCE: method for making missile body by extruding steel blank in die by means of punch comprises steps of forward extrusion by plunger at punch rigidly mounted along axis of die; at extrusion process providing gap between outer surface of formed blank and inner surface of die; keeping said gap at extrusion process; then drawing blank through annular dies for subsequent mechanical working of its outer surface and reduction of head portion of missile body. Preferably, blank of easy-to-form material such as low-carbon steel before forward extrusion and reduction of head portion of missile body is heated up to deforming temperature. Preferably, blank of easy-to-form material such as low-carbon steel is subjected to forward extrusion and to reduction of body head at 20C. EFFECT: enhanced accuracy of missile body blanks without mechanical working of lock. 3 cl, 6 dwg

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RU 2 179 491 C2

Authors

Kapustin A.I.

Shipunov A.G.

Ratner A.D.

Berezin S.M.

Grishin V.M.

Osipova L.F.

Kochnov A.I.

Dates

2002-02-20Published

2000-04-14Filed