%0 Journal Article %T Increasing the efficiency of coal mass grinding by changing the geometry of the impact surface of the grinding wheel %A Chetverikov, S.V. %K tangential hammermill, grinding wheel, working surface, coal mass, crushing, grinding, abrasive wear, angle of trim, efficiency coefficient %J Science intensive technologies in mechanical engineering %D 2025 %N 2025 %P 6 %I Bryansk State Technical University