How to solve the problem of the surface roughness of the workpiece after dressing the grinding wheel?

We suggest the manufacturers can start from the following aspects:

1. From the technical aspect:

1) When the roughness of the grinding wheel is not up to the requirements, you can try to increase the speed within the range of the grinding wheel speed to improve the surface roughness of the workpiece. In addition, you can also try to reduce the speed of the workpiece to be ground. The purpose of this method is to increase the relative speed of the grinding wheel and the workpiece.

2) When the effect of first method is unsatisfactory, the longitudinal feed of the workpiece can be reduced so that reduce the strength of the workpiece by the diamond grinding wheel, which can also prevent large-area burns of the workpiece.

3) In the working process of the grinding wheel, the flow of cutting fluid or cooling fluid should also be controlled, and clean cutting fluid and cooling fluid should be replaced frequently to reduce the debris blocking the pores of the grinding wheel.

4) After trying above conditions, if the workpiece still has lines or cannot meet the roughness requirements of the workpiece, then we should adjust the balance accuracy of the grinding wheel, the rotation accuracy of the grinding machine spindle, and the smooth movement of the table. Adjust the rigidity of the machine tool and the entire process system in various aspects such as performance to reduce the vibration during grinding.

2. From the aspect of grinding wheel selection: 

The appropriate grinding wheel should be selected to grind the applicable workpieces. Generally speaking, the affinity of abrasives and workpieces material is opposite. When the workpiece material is soft or sticky, the harder abrasive grinding wheel should be used; when the workpiece material is hard or brittle, choose softer abrasive grinding wheel. 

Choose to use a grinding wheel with a larger diameter and increase the width of the grinding wheel. The finer the particle size of the grinding wheel, the surface roughness value of the workpiece can be reduced.

3. From the use of diamond pen for dressing grinding wheel:

When the grinding wheel is dressing and sharpening, a diamond pen with good wear resistance, the appropriate edge shape and installation angle should be controlled. The scientific and reasonable grinding can be obtained good abrasive cutting edge and reduced surface roughness.

Our company produces various grinding wheels for grinding machines. You can send us the characteristic parameters of the grinding wheel, and our company will choose the best for you.