There are many cnc processing plants, and the level of cnc processing is also staggered. Rough cnc processing will have an irreversible impact on the parts and become waste.
Dongguan Yumei Hardware Products Co., Ltd. will introduce you to the effects of rough machining of cnc parts on parts
1. Affect wear resistance: the rougher the CNC product processing surface, the smaller the useful contact area between the mating surfaces, the greater the pressure, the greater the conflict resistance, and the faster the wear.
2. Affecting the stability of the fit: For clearance fits, the rougher the surface, the easier it is to wear, which will gradually increase the clearance during work; for interference fits, the meso convex peaks will be flattened when equipped, The essential useful interference is reduced, and the connection strength is reduced.
3. Influencing fatigue strength: There are large wave troughs on the surface of rough parts. They are the same as sharp notches and cracks. They are very sensitive to stress collection, thereby affecting the fatigue strength of the parts.
4. Affecting corrosion resistance: rough surface of parts can easily cause corrosive gas or liquid to penetrate into the inner metal layer through the mesoscopic valleys on the surface, forming surface erosion.
5. Affect sealing: rough surfaces cannot be closely attached, and gas or liquid leaks through the cracks between the contact surfaces.
6. Affect the contact stiffness: the contact stiffness is the strength of the part's fusion surface to resist contact deformation under the action of external force. The stiffness of the machine depends to a large extent on the contact stiffness between the parts.
7. Affect the measurement accuracy: The surface roughness of the measured surface of the part and the measurement surface of the measuring equipment will directly affect the accuracy of the measurement, especially during careful measurement.
In addition, the surface roughness will have a different level of influence on the coating, thermal conductivity and contact resistance, reflective strength and radiation function of the part, the resistance of the liquid and the flow of the body, and the smooth flow of the conductor surface current. Therefore, the Kaicheng precision hardware cnc processing plant must pay great attention to this aspect, and do not make the same mistakes in the production process.
