Host: The Institute of Systems, Control and Information Engineers
Name : 2018 International Symposium of Flexible Automation
Location : Kanazawa Chamber of Commerce and Industry, Kanazawa Japan
Date : July 15, 2018 - July 19, 2018
Pages 88-95
In this paper, we propose a novel 3D shape representation method called “radial ray representation (3R)”. In this method, a solid shape is recorded by a set of dense rays radially expanding from a single point. This representation is especially useful for determining the optimal cutter posture in the 3+2 axis milling of a mold part. As a measure of the appropriateness of the cutter posture, the peak angle of the accessibility cone (AC) is used. In the appropriate postures, we select the optimal one as the tool posture with possible shortest cutter length without holder collisions. We developed 3R model based algorithms for computing the AC and for selecting the optimal cutter posture. We also propose a fast method for obtaining a 3R model using the polygon rendering function of the graphics processing unit. An experimental system is implemented and some computation results are demonstrated.
