| 空间自由曲面的无允差局部离散化 |
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| 引用本文： | 喻道远,段正澄,涂海宁,孙洪道.空间自由曲面的无允差局部离散化[J].华中科技大学学报(自然科学版),1994(10). |
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| 作者姓名： | 喻道远 段正澄 涂海宁 孙洪道 |
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| 作者单位： | 华中理工大学机械科学与工程学院 |
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| 基金项目： | 国家863高技术计划,CIMS主题应用工厂项目，湖北省自然科学基金 |
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| 摘 要： | 根据点涉法原理和曲面的凸凹性，提出了计算非球面刀刀位轨迹的曲面无允差局部离散化方法。该方法仅对曲面上凹的部位作无允差的离散化处理，即可准确地计算出非球面刀在空间自由曲面上的刀位轨迹。
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| 关 键 词： | CAM，NC编程，自由曲面 |
Local Discretization of a Sculptured Surface without Tolerance |
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| Yu Daoyuan,Duan Zhengcheng,TuHaining ,Sun Hongdao.Local Discretization of a Sculptured Surface without Tolerance[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1994(10). |
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| Authors: | Yu Daoyuan Duan Zhengcheng TuHaining Sun Hongdao |
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| Institution: | Yu Daoyuan;Duan Zhengcheng;TuHaining ;Sun Hongdao |
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| Abstract: | In the NC programming for a sculptured suface,there exists inconsistency between theparametric representation of the surface and the representation with Cartesian coordinates ofthe same surface in a CAM system by which the surface is to be machined.The commonlyused method for dealing with this problem is to perform discretization by recursive segmenta-tion within a spectified tolerance. A new method Of discretization is proposed,for whichsuch a discretization without tolerance will be carried out only for the concave region on thesculptured surface when the cutter path is to be calculated during the programming. |
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| Keywords: | CAM NC programming sculptured surface |
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