Small grinding technology

( 3) Cemented carbide tools such high melting point and hardness, good chemical and thermal stability, cutting and wear-resisting performance is much better than that of high speed steel tools. In the machining process of general use oil-based cutting fluid. If the heavy cutting, the cutting temperature is high, easy to fast and cutter grinding loss, flow should be used when enough cooling lubricants, with 3% ~ 5% of the emulsion advisable ( The spray cooling, the effect is better) 。 ( 4) Ceramic tool, diamond tool, cubic boron nitride cutting tool these high hardness and wear resistance of cutting tool and cutting generally does not use cutting fluid, sometimes also can use water-based cutting fluid. As we all know, grinding is actually more knife cutting at the same time, the processing technology of grinding feed smaller, cutting cutting force is usually is not big, but grinding speed is higher, 30～80m/s) , so the temperature of the grinding area are generally higher, up to 800 ~ 1000 ℃, easy to cause surface local burn, grinding thermal stress can make the workpiece deformation, and even make the workpiece table surface cracks, because the grinding process can produce a large number of metal abrasive dust and sand grinding wheel, at the end of the table will affect the machining surface roughness, etc. Therefore, in the selection of grinding of water-soluble metal cutting fluid, we require the cutting fluid has good cooling and lubrication and cleaning flush.