FIELD: process engineering.
SUBSTANCE: invention relates to ammunition for small arms, primarily, to bullet armor-piercing cores. Proposed method comprises head multiple forging and annealing. First, taper is formed by punch to provide constant working cavity taper angle unless point with diameter making 0.25 of core diameter is formed. Then, heading tool is used to head said point and to mate two tapers. Annealing is carried out many times after every forging.
EFFECT: higher hardness of core, longer life of tool.
3 dwg, 1 ex
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Authors
Dates
2011-07-10—Published
2009-10-27—Filed