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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part B. Journal of engineering manufacture >Reverse engineering physical models employing wrap-around B-spline surfaces and quadrics
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Reverse engineering physical models employing wrap-around B-spline surfaces and quadrics

机译：使用环绕B样条曲面和二次曲面的逆向工程物理模型

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摘要

Reverse engineering involves digitizing a three-dimensional model or part, by means of a tactile or non-contact optical sensor, converting the data to a CAD (computer aided design) database description and manufacturing by CNC (computer numericalcontrolled) machines. This paper demonstrates an effective approach to the reverse engineering of physical models by employing a three-dimensional laser scanning system in conjunction with surface-fitting software developed by the authors. Accuratesurface data are collected by the laser scanner and then input to the surface-fitting software. Surface entities such as B-spline and quadric functions are employed to build the CAD model. The CAD model is compatible with popular design and manufacturingsoftware packages. A telephone receiver is used to illustrate the efficiency of the process.
机译：逆向工程涉及通过触觉或非接触式光学传感器将三维模型或零件数字化，将数据转换为CAD（计算机辅助设计）数据库描述，并通过CNC（计算机数控）机器进行制造。本文通过使用三维激光扫描系统以及作者开发的表面拟合软件，展示了一种有效的物理模型逆向工程方法。准确的表面数据由激光扫描仪收集，然后输入到表面拟合软件中。使用诸如B样条和二次函数之类的曲面实体来构建CAD模型。 CAD模型与流行的设计和制造软件包兼容。电话接收器用于说明该过程的效率。

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