文献类型：期刊文献

中文题名：凸曲面横向曲率变化对三维加工精度的影响

英文题名：Effect of Transversal Curvature Variation of Curvex Surface on Three-axis Milling Precision

作者：刘璨[1]

机构：[1]广东海洋大学工程学院,广东湛江524025

年份：2010

卷号：38

期号：23

起止页码：135

中文期刊名：机床与液压

外文期刊名：Machine Tool & Hydraulics

收录：CSTPCD、、北大核心2008、北大核心

语种：中文

中文关键词：凸曲面;曲率;残留高度;数学推导

外文关键词：Convex surface; Curvature; Scallop-height; Mathmatics deducing

中文摘要：为探索凸曲面三维加工方向的选择方法,对原始几何模型进行数学推导,证明残留高度对横向曲率半径的偏导数为负数,说明残留高度随横向曲率半径的增大而减小。在CAD/CAM软件上对同一凸曲面做两种不同方向的等行距三维加工仿真实验,结果表明横向曲率半径较大的加工残留高度小。该结论可用于选择注塑模凸曲面三维加工方向,尤其对小曲面的半精加工有较大的参考价值。

外文摘要：In order to explore the means of selecting three-axis milling direction for curvex surface,by mathmatics deducing on original geometric model,it is demonstrated the partial derivative of scallop-heigh to transversal curvature-radial is negative,which indicates that the scallop-height will decrease as transversal curvature-radial increases.With three-dimension CAD/CAM software,simulation experiments of three-axis millings toward two different directions on the same convex surface were done.The results show that the precision of milling with greater transversal curvature is better than the other.This conclusion can be applied in selecting three-axis milling direction for convex surface of plastic injection mould.It＇s especial valuable in semi-finish milling on small surface.