The maintenance rules for diamond grinding wheels

2020-07-20 1107

Diamond grinding wheels are tools for grinding high hardness and brittleness materials such as hard alloys, glass, ceramics, and gemstones. Metal bonded diamond grinding wheels mainly have two types according to different manufacturing methods: sintering and electroplating; In daily life. How to maintain it? Let's take a look together:

1. If the diamond grinding wheel is not used properly, it should be placed flat or suspended using an inner hole. Other objects or feet should not be stacked on the flat saw blade, and attention should be paid to moisture prevention and rust prevention.

When the diamond grinding wheel is no longer sharp and the cutting surface is rough, it is necessary to carry out timely regrinding. Grinding should not alter the original viewpoint or damage the dynamic balance.

3. It is necessary for the factory to carry out the inner diameter correction and positioning hole machining of diamond grinding wheels. If the processing is poor, it will affect the application effect of the product and may cause risks. In principle, the hole expansion should not exceed the original aperture by 20mm to avoid affecting the stress balance

4. Selection of alloy grinding wheels.

1) The resin bonded diamond grinding wheel has weak bonding strength, so it has good self sharpening performance during grinding, is not easy to block, has high grinding power, low grinding force, and low grinding temperature. The defects are poor wear resistance, high tool wear, and is not suitable for heavy-duty grinding.

2) Ceramic bonded diamond grinding wheels have better wear resistance and bonding ability than resin bonded grinding wheels, with sharp cutting, high grinding power, less heating and blockage, low thermal expansion, simple control accuracy, rough defect grinding surface, and higher cost.

3) Metal bonded diamond grinding wheels have high bonding strength, good wear resistance, low wear, long service life, low grinding cost, and can withstand large loads, but their sharpness is poor and easy to block.

4) The particle size of the abrasive has a certain impact on the blockage and cutting amount of the grinding wheel. Compared with fine sand particles, coarse sand particles have a greater depth of penetration and wear the cutting edge of the abrasive particles. Conversely, the grinding wheel is prone to blockage.

5) The hardness of grinding wheels has a significant impact on blockage. High hardness of grinding wheels has a high thermal conductivity, which is not conducive to external heat dissipation and is beneficial for improving machining accuracy and durability.

6) The selection of grinding wheel concentration is an important characteristic, which has a significant impact on grinding power and processing cost. If the concentration is too low, it affects power. Conversely, abrasive particles are prone to detachment, but the scale of bond concentration is also good.

Article source: Diamond grinding wheel