FIELD: process engineering.
SUBSTANCE: invention relates to machine building. Barrel billet is machine to get barrel smooth bore. Rifling grooves are produced by plastic deformation, chromium plated and heated. Rifling grooves on smooth barrel bore surface by plastic deformation is carried out after chromium-plating of barrel smooth bore surface. Heating after chromium-plating is performed in vacuum or protective gas at temperature not exceeding that of barrel billet tempering.
EFFECT: barrel bore straightness.
1 ex
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