International Journal of Mechanical Engineering

in the process of milling the top surface , it is easy to produce abnormal knife lines when the position of the feed and the path of the walking knife are changed, some fingers touch without concave and convex feeling, and when it is serious, it will produce knife grain steps, and the finger touch has obvious concave and convex platform step feeling, which is difficult to eliminate. the existence of knife grain steps affects the surface quality of the product, seriously affects the sealing effect of the product, and easily leads to the oil leakage of the product. Therefore, it is very important to eliminate the abnormal knife grain step and ensure the product quality. In this paper, the causes and elimination methods of abnormal knife pattern are discussed.

Top milling; Abnormal knife pattern; Knife pattern step