FIELD: metallurgy.
SUBSTANCE: invention relates to metal deformation process and can be used for metal hardening during the process of treatment. Device contains matrix with located in it two intersecting vertical and tangential channel. Symmetry axis of tangential channel is shifted relative to symmetry axis of the vertical channel for value, constituting 0.5-10 % of radius of matrix tangential channel.
EFFECT: it is provided increasing of mechanical characteristic of treated metal.
1 dwg
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