In cutting process, increasing the cutting performance and durability of ceramic high efficient metal abrasive disc cutter is attracting more and more attention. In the metal cutting process, because of chip deformation and friction, the cutting zone produces high temperature, and because of the different ceramic grinding wheel cutter and workpiece materials, forming the two poles of thermocouple and thermoelectric potential, resulting in direct current thermoelectric current. The thermoelectric flow can easily intensify the oxidation process of the surface of the grinding wheel and accelerate the abrasion of the grinding wheel.

Under certain conditions, the contact area between ceramic cheap metal grinding disc cutter and machine tool, workpiece and machine tool, and the contact area between the friction pair of machine tool itself will also produce thermoelectric emf-thermoelectric current. Thermomagnetic effect and electromagnetic effect will also occur in the cutting process. Thermoelectric emission-discharge phenomenon will also occur on the surface of high temperature contact area.

Thermoelectric current produced in the cutting process and other factors caused by the thermal current, and at the same time there is a local thermal current in the grinding tool workpiece within the limited contact area, which aggravates the wear of the grinding tool. In addition to the above-mentioned basic ways, there is a new way to improve the cutting performance and durability of ceramic grinding wheel cutter, that is, to eliminate and strengthen the thermal current effect of wear of ceramic China high efficient grinding disc cutter and try to cut off the thermal current loop.