Gouge-free voxel-based machining for parallel processors
Gouge-free voxel-based machining for parallel processors
复制标题
用于并行处理器的基于无凿孔体素的加工
DOI：
10.1007/s00170-013-5148-x
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Dmytryi Konobrytskyi
中科院分区：
文献类型：
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作者：
Joshua A. Tarbutton;T. Kurfess;Thomas M. Tucker;Dmytryi Konobrytskyi
制造商利用计算机辅助制造（CAM）软件为机床生成刀具路径来生产复杂零件。CAM系统传统上依赖零件的参数曲面表示和复杂算法来生成刀具路径。本文提出了一种基于并行算法和利用体素模型的硬件的新型路径生成框架。新并行算法的使用允许从体素模型自动快速计算刀具路径。该框架的核心组件包括一种从细分曲面模型生成数字体素模型的方法、一种通过并行光线投射方法获取数字曲面信息的方法，以及一种从曲面信息和广义切削几何形状并行计算无过切刀具路径的新方法。然后从时间和实际切削结果方面讨论了在该框架内使用数字模型的性能。
Manufacturers produce complex parts by utilizing computer-aided manufacturing (CAM) software to generate tool paths for a machine tool to follow. CAM systems traditionally rely on parametric surface representations of the parts and complex algorithms to produce the tool paths. This paper presents a new path generation framework that is based on parallel algorithms and hardware that utilizes voxel models. The use of new parallel algorithms allows rapid calculations of tool paths automatically from the voxel model. The core components of this framework are a method of generating digital voxel models from tessellated surface models, a method to obtain digital surface information by a parallel ray-casting approach, and a new approach to calculate gouge-free tool paths in parallel from surface information and generalized cutting geometry. The performance of utilizing digital models within this framework is then discussed with respect to timing and actual cutting results.