DEVELOPMENT OF HIGHLY EFFICIENT ROUGH CUTTING SYSTEM BASED ON BOUNDARY-MAP GEOMETRIC MODEL

摘要

Highly efficient cutting is especially required during rough cutting, because it must cut much removal volume. While several rough cutting methods have been developed and attempted to improve a machining efficiency, more improvement of the machining efficiency has been required continuously. This paper describes for a highly efficient rough cutting system based on Boundary-Map geometric model. In this system the authors newly propose two methods to generate tool path. First method is to create a tool path constructed by straight line. Second one is to create a tool path to minimize fluctuation of cutting load applied to cutting tool. Boundary-Map geometric model is newly developed to satisfy the functions required for practical CAM system, for example, a high-speed collision checking and an adaptation to deformation. Finally, the capabilities of this system are demonstrated by generating the tool path using each methods and executing cutting tests on a CNC machining center.