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润滑冷却液在金属切削加工中,具有重要的作用。金属切削加工时,由于刀具的切割和挤压作用,使金属切削层产生变形。此外,前刀面与切屑、后刀面与工件之间还产生强烈的摩擦。由于变形和摩擦,产生很大的切削力和很高的切削温度,从而影响着刀具的磨损、功率的消耗以及工件表面质量。科学地选用润滑冷却液可以有效地减少摩擦、提高切削速度、延长刀具寿命、减少动力消耗和提高工件表面质量。动、植物油是一种很好的润滑冷却液。在我国许多地区还在应用。从“备战、备荒、为人民”的战略方针考虑,最好少用或不用动、植物油,应大力发展其代用品。
Lubrication of coolant in metal cutting, has an important role. Metal cutting, due to the cutting tool and extrusion, the metal cutting layer deformation. In addition, the rake face and the chip, flank and the workpiece also produces a strong friction between. Due to deformation and friction, resulting in a large cutting force and high cutting temperature, which affects the tool wear and tear, power consumption and workpiece surface quality. Scientific selection of lubrication fluid can effectively reduce friction, improve cutting speed, extend tool life, reduce power consumption and improve the surface quality of the workpiece. Dynamic vegetable oil is a good lubricant. In many areas of our country still being applied. From the strategic principle of “preparing for war, preparing for waste, and for the people”, it is best to use less or no animal or plant oils and vigorously develop their substitutes.