摘要
提出一种基于离散数据的复杂曲面数控粗加工方法 被加工曲面用多面体模型来描述 ,采用分层切削方法加工 ,基于二维等值平面图的拓扑结构 ,求出各层的有效加工区域 ,利用数控编程自动生成刀具轨迹 该方法成功地解决了层切法加工复杂曲面时不能处理岛中岛的难题 ,经实践检验 。
The sculptured surface is approximated by a regular mesh of rectangular facets. A set of equidistant horizontal planes are assigned to intersect the blank of machined part, resulting in a series of contours, which demarcate the feasible cutting regions of each layer of material removal. The desired cutter path is computed through NC programming. This approach successfully solves the problem of layered milling for sculptured surfaces with nested islands.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2003年第3期338-342,共5页
Journal of Computer-Aided Design & Computer Graphics
基金
教育部高等学校重点实验室访问学者基金资助
关键词
离散数据
粗加工
刀具轨迹
scattered data
rough cutting
tool path
