Talking about the refinement of the diamond cutter structure
The size of the diamond tip reflects the quality of the sintering process. After accurately calculating the addition amount, under the correct sintering process conditions, the tolerance of the tip size can be 0.1mm, otherwise there will be problems. Generally, the size is too large. The reason is Yes: The powder is seriously oxidized, and it is still not pressed at the specified temperature and pressure; the temperature is not enough, the alloying has not formed, and it does not help under the applied pressure; the holding pressure and cooling time are not enough, the mold is released prematurely, and the blade is not shaped Springback sometimes occurs; the amount of feed is too large; the mold is too old and the size is too large. The large size of the cutter head indicates that the density is insufficient, which greatly reduces the ability of the binder to grasp the diamond. The cutter head appears sharp, but the life is greatly reduced.
2.Density and quality
Dividing the actual weight of the diamond cutter head by the actual volume of the cutter head gives the overall density of the cutter head. The inspection of density is very important, especially in the absence of a hardness tester, the density reflects the performance of the cutter head. The minimum density is calculated as follows: Minimum density = total weight of the cutter head plus the standard volume of the cutter head X95%. The reason for insufficient weight is mainly because the heating speed is too fast, which causes "run out".