FIELD: metal working; applicable in supply of lubricant-coolant process mixture to zone of grinding by cup grinding wheel. SUBSTANCE: cup grinding wheel is installed at an acute angle to worked surface. Lubricant-coolant process mixture is supplied from outside through gap between the working face of inclined wheel and blank worked surface to internal surface of wheel. Jet of lubricant-coolant process mixture is given oscillating motion in planes square and parallel to plane of working. Amplitude of supply of lubricant-coolant is ensured over entire curve of wheel contact with blank. EFFECT: increased cooling efficiency by 20%, simplified method of supplying lubricant-coolant and machine kinetics due to avoidance of making spindle hollow. 3 dwg
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