What is the effect of CNC rough machining on parts?

With the continuous development of the processing industry, what we use can only be completed after processing, and the processing must use machines to reduce product defects. Dongguan CNC parts processing is one of them, so what kind of consequences will be caused by rough CNC processing on parts?

1. Impact on wear resistance: the rougher the surface of CNC machining, the smaller the effective contact area between mating surfaces, the greater the pressure, the greater the friction resistance and the faster the wear.

2. Affect the stability of fit: for gap fit, the rougher the surface is, the easier it is to wear, so that the middle gap in the working process gradually increases; for interference fit, because the micro convex peak is squeezed flat during assembly, the practical effective interference is reduced, and the joint strength is reduced.

3. Influence on fatigue strength: there are large grooves on the surface of rough parts. Like sharp corner notches and cracks, they are sensitive to stress concentration, thus affecting the fatigue strength of parts.

4. Impact on corrosion resistance: the rough surface of parts is easy to make corrosive gas or liquid penetrate into the inner metal layer through the micro concave Valley on the surface, forming external corrosion.

5. Influence on sealing: rough surfaces cannot fit tightly, and gas or liquid leaks through the gap between contact surfaces.

6. Influence on contact stiffness: contact stiffness is the ability to resist contact deformation of the separation surface of the part under the action of external force. The stiffness of the machine depends on the contact stiffness between the parts to a great extent.

7. Affect the measurement accuracy: the surface roughness of the measured surface of the part and the measuring surface of the measuring tool will directly affect the measurement accuracy, which is in the fine measurement.