FIELD: process engineering.
SUBSTANCE: invention relates to metal forming and may in production of small arms hifled barrels. Initial blank is machined and, then, heat treated. Machining allows making the pipe billet with channel with allowance for removal defective layer formed at hardening heat processing. Said allowance if removed after heat hardening. Then, pipe billet is subjected to two radial reduction jobs to produce forged piece. At preliminary radial squeezing, smooth channel is formed in forged piece while rifled channel is formed at final operation. Final reduction is performed in compliance with enclosed relationship.
EFFECT: higher quality of rifled barrel.
1 ex
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