1. Cutting dosage

   The larger the feed, the higher the height of the residual area, and the rough the surface of the part. Therefore, reducing the amount of advancement can effectively reduce the surface roughness value.

   The impact of cutting speed on surface roughness is also great. In the medium -speed cutting plastic material, because tumor accumulation is easy to produce, and the plastic deformation is large, the surface of the parts after processing is large. Low -speed or high -speed cutting plastic materials are usually used, which can effectively avoid the production of chip tumors, which has a positive effect on reducing the surface roughness value.

1. Knife geometric parameters

   In the processing of precision parts, the main partial angle, awarded angle and the tip of the knife tip arc radius have a direct impact on the roughness of the surface of the part. In the case of a certain amount of feed, reducing the primary and secondary corners or increasing the tip of the tip of the knife can reduce the surface roughness value. In addition, appropriately increase the front angle and rear corner, which can reduce the deformed deformation and the friction between the front and rear knives, inhibit the production of tumor accumulation, and reduce the surface roughness value.