Second, the diamond pen needs to be slightly trimmed, and the most suitable trimming depth must be selected to trim the grinding wheel. Choosing too large dressing depth will produce higher cutting temperature, reduce the service life of dresser and cut off the useful grinding wheel layer. The end result is that the diamond dressing pen and grinding wheel are damaged, which is counterproductive.
Thirdly, the lateral movement speed is the speed at which the dressing tool passes through the grinding wheel surface during dressing. It plays a key role in the surface roughness and metal cutting rate required for machining parts. Too slow lateral movement speed will cause grinding wheel blockage and damage the surface roughness and metal cutting rate of parts. Too slow lateral movement speed will also cause grinding wheel vibration and burn the surface of parts. The uniform and rapid lateral movement speed can trim the surface of grinding wheel, improve the grinding performance of grinding wheel, improve grinding efficiency and reduce the surface roughness of parts.
Keep cool
Proper use of cooling liquid can speed up dressing and improve dressing efficiency. According to experience, the coolant with a diameter of 3/8 inch can take away a lot of heat from the dresser and prolong its service life. When the diamond dressing tool passes through the grinding wheel, a coolant nozzle is installed to fill the entire surface of the grinding wheel, or coolant is continuously added to the diamond dressing tool. When the dressing tool comes into contact with the grinding wheel and starts dressing, it is never allowed to withdraw from the cooling liquid. Otherwise, the diamond dressing tool will crack or break under the extreme temperature change of hot and cold.
Using the filter to filter the coolant with high precision can avoid the repeated circulation of dirt or debris in the coolant. The contaminated coolant will make the grinding wheel wear quickly and increase the dressing times of the grinding wheel. Only in dry grinding (only in this case can the cooling of diamond dressing tools be interrupted) can the grinding wheel be dry dressed. Every day before work, after turning off the coolant, let the grinding wheel idle for a few minutes. This can prevent the grinding wheel from breaking.
Vibration is the enemy of dressing.
In grinding wheel dressing, it is very important to effectively reduce vibration, avoid leaving dressing marks on the surface of grinding wheel and avoid collision and damage to dressing tools. This means that the grinding wheel must be balanced, which is determined by the structural characteristics of the grinding wheel itself. Uneven density and the geometry of the whole grinding wheel will affect the inherent balance of the grinding wheel. Therefore, it is also very important to choose high-quality grinding wheels.
In order to further avoid vibration, it is necessary to ensure that the dressing tool is firmly clamped on the fixture seat, and keep the minimum protrusion to ensure that the dressing tool has sufficient rigidity. If the diamond tool is not tightly clamped, it will cause vibration and noise, produce ripples on the surface of the part, deform the surface of the part and damage the dressing tool.
In a word: superhard grinding wheel must be reshaped and sharpened before grinding. According to the experience mentioned above, it will help your grinding wheel to produce the best grinding effect. Our factory wholeheartedly provides new and old customers with more cost-effective grinding wheel dressing tools.