Coolant Effect on Grinding Performance in High-Speed Deep Grinding of 40Cr Steel

摘要

High-speed deep grinding (HSDG) technology was developed based on high-speed and creep-feed grinding techniques. What mainly distinguishes HSDG from creep-feed grinding is its employment of a significantly higher wheel speed. Because the higher wheel speed results in a decrease in the undeformed chip thickness, HSDG is thus capable of achieving high stock removal rates and producing a high surface quality throughout the workpiece. However, the increase in wheel speed leads to the formation of a strengthened air barrier around the grinding wheel periphery, which is a great obstacle to the impinging of coolant into the grinding zone.