1. Resinoid grinding wheel has high hardness and wear resistance: The hardness of the polycrystalline diamond layer is generally HV7000-9000, and it is consistent in all directions, which is 2-4 times the hardness of the general grinding wheel abrasive. The durability of the grinding wheel cut with it is very high, and its volume wear ratio can reach 1/13 million. The mass wear ratio can reach 1/300,000, thereby reducing production costs.
2. Resinoid grinding wheel has high bending strength: The bending strength of diamond is 210-490MPa, and the composite layer of the PDC blade has a thicker carbide support with higher bending strength under it, and its composite bending strength can reach 1500 MPa, so there is no edge collapse or breakage during the cutting process.
3. The resinoid grinding wheel is prone to edge collapse when cutting in and out: When cutting the grinding wheel with a tool with a larger main deflection angle, the cutting in and out is prone to edge collapse. In order to solve this problem, a circular blade is used to change the main deflection angle to make the cutting in and out smooth. When the feed rate is 1-1.5mm, no edge collapse occurs.
4. The chips are in powder form: The chips of the cutting wheel are in powder form, and the tool wear is in the form of back face wear, which is mainly borne by the wear of the resinoid grinding wheel abrasive.
5. The cutting force and cutting temperature are low: Resinoid grinding wheel has a high thermal conductivity, which is 1.5 to 9 times that of cemented carbide and 2 to 6 times that of copper, so that the temperature of the cutting area is quickly transmitted. Therefore, the temperature of cutting resin bond or ceramic diamond grinding wheel with diamond composite sheet tool is many times lower than that of cutting metal.
6. Compared with traditional turning tools, resinoid grinding wheel has almost no dust flying during the turning process, and the noise can be effectively reduced. The working environment is further improved, which is beneficial to the physical and mental health of employees.
