Efficient Algorithm for Sidewall Machining of Aircraft Structural Part

Traditionally, the boundaries of the pocket bottom face are often used as the guide elements of the machining process of sidewall machining. However, for complex pocket, overcutting often occurs due to the incorrectness of the guide elements. To solve this problem, the sidewall machining model is presented at first. Then, terms such as rim convex edge and visible property are introduced in detailed. Finally, the rim convex edges are projected onto the bottom face and the visible guide lines are constructed by sub-lines selection based on the visible property. At last a case study is given to verify the feasibility and effectiveness of the proposed algorithm. The result shows that the algorithm can avoid overcutting for complex pocket.