TY JOUR TI STUDY OF THE INITIAL DAMAGE OF A COPPER SLAG ABRASIVE TO INCREASE THE PRODUCTIVITY OF HYDROABRASIVE CUTTING KW modeling KW abrasive KW copper slag KW hydroabrasive cutting KW selective destruction KW disintegrator KW crack JO Transport engineering AU Barsukov, G.V. AU Shorkin, V.S. AU Vlasov, V.V. AU Petrukhin, A.V. AU Nozdrin, E.D. PY 2025 IS 2025 PB Bryansk State Technical University