Evaluation of Cutting Fluid Penetration into the Cutting Zone During Grinding of Rolling Rolls

The process of cutting fluid penetration into the contact zone of the grinding wheel and workpiece at circular external grinding of rolls of rolling mills and the main factors influencing this process are investigated. It is established that cutting fluid penetration into the contact zone of the grinding wheel and the workpiece is a complex hydromechanical process occurring due to the capillary effect using the finest network of capillaries formed in the contact zone of the grinding wheel and workpiece. It is established that dynamic phenomena in the technological system accompanying the cutting process when grinding rolls exert a significant influence on the penetrating ability of cutting fluid. Based on the research results, recommendations on selecting grinding modes of rolls providing the maximum degree of cutting fluid penetration into the contact zone of the wheel and workpiece are offered. In this case, the maximum increase of “useful” cutting fluid consumption is achieved, which reduces the grinding process’s heat intensity at a minimum cutting fluid consumption, thereby increasing the grinding efficiency.