FIELD: process engineering.
SUBSTANCE: invention relates to metal forming and may be used in producing grinding bodies for drum mills. Grinding bodies are formed in three passes. Said passes comprises swaging out, reverse extrusion and reduction. Reverse extrusion aims at producing barrel-like billet with ball-like bottom. Bottom outer diameter makes 0.9 to 0.92 of grinding body OD. Reduction is performed to produce hollow-ball billet with one bore. Bore diameter makes 0.3 to 0.4 of inner diameter of grinding body.
EFFECT: ruling out accumulation of inner strains in colliding grinding bodies.
4 dwg, 2 tbl
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