What are the hardness, particle size, and concentration of diamond grinding wheels

2020-01-03 3311

Diamond grinding wheels are a widely used type of cutting tool. Below, we will briefly discuss the hardness, particle size, and concentration of diamond grinding wheels.

The hardness level of a diamond grinding wheel represents the holding force of the binder on the abrasive. It is an important indicator for the manufacturer's process control and also the main parameter for users to choose the performance of the grinding tool. The uniform and stable hardness of grinding wheels, as well as the reasonable selection of hardness levels, are important prerequisites for ensuring grinding quality.

2 Diamond grinding wheel particle size

In grinding, operators usually have experience in using ordinary abrasive tools, and the principle of particle size selection is basically the same. However, here we need to consider the differences in the performance of the two major types of abrasives, requiring the same machining surface roughness. Due to the sharpness and low wear resistance of superhard abrasive particles, the selected particle size should be 1-3 finer than ordinary abrasives.

3. The concentration of diamond grinding wheels mainly refers to the number of abrasive particles per unit area of the grinding wheel working surface participating in grinding, while resin bonding agents usually require a concentration of 75-100%; The high concentration of ceramic binder can lead to higher grinding ratio, and usually a concentration of 100-200% is used. Currently, high speed and efficient grinding rely on a higher concentration of grinding wheels, such as the ceramic diamond grinding wheel used in imported camshaft grinding machines, which typically has a concentration of 200%. For some processing with special requirements, the selection of concentration can also be adjusted appropriately.

Article source: Diamond grinding wheelhttp://www.jm-nanhua.com/