关键词: 倾斜平面, 加工去除体, 相邻面组, 虚拟平面

Abstract: To meet the requirement of dealing with the slanting faces in computer aided process planning system,a method of mapping slanting face to its removal volume was developed.The characteristics of slanting faces were analyzed.According to its neighboring faces,the slanting face was divided into two types: the open neighboring faces and the closed neighboring faces.The algorithm for recognizing the slanting face and its neighboring faces was proposed based on geometric reasoning method,and then the type of slanting face was judged.The removal volume of slanting face was obtained by extending the neighboring faces or creating the virtual plane.Based on the developed functional modules,the proposed method was verified by application of complicated machined part.

Key words: slanting face, removal volume, neighboring faces, virtual plane