Common Problems and Solutions of Parallel Surface Grinding Wheel

Parallel surface grinding needs to ensure that the parallelism of two faces of workpiece and the grinding process of dimensional tolerance. In the application of parallel surface grinding, common problems and solutions are as follows:

A. The surface roughness of workpieces is poor：

If the particle size of grinding wheel is not appropriate, please select the appropriate particle size for grinding wheel;

If the coolant is not clean when filtered, please check the filtering system of coolant;

If the dressing speed of finisher is too fast or it is blunt, please adjust the speed or replace new finisher;

If the feed rate is too big, please reduce the feeding;

If the speed of workpieces is too low, please increase the speed of workpieces;

If the wheel speed is too low, please increase the speed of grinding wheel.

B. The durative of workpiece dimension is not good: If grinding wheel is softer in the hardness, please choose harder grinding wheel.

C. If its discontinuity is not that good and the hardness is harder, please choose softer grinding wheel.

D. The grinding wheel has burn: 

If the feed rate is too big, please reduce the feeding;

If the coolant flow is not enough or the nozzle direction is not correct, please increase the coolant flow rate or adjust the direction of the nozzle;

If the hardness of grinding wheel is harder, please choose softer or more open grinding wheel;

If the dressing for grinding wheel can not meet the requirements, please dress again or replace the finisher;

If scrap metal of cooling fluid is not cleaned, please check the filtration system.

E. There is chattermark on the surface of grinding wheel:

If the feed rate is too big, please reduce the feeding;

If there is vibration in machine tools, please check the machine and the surrounding environment;

If grinding wheel is harder, please reduce the hardness and improve the workpiece speed, to speed up the dressing.