Simulation of the behaviour of CNC machine-tools in three-axis milling of sculptured surfaces

被引：3
|
作者：
Pessoles X. [1 ]
Landon Y. [1 ]
Mousseigne M. [1 ]
Rubio W. [1 ]
机构：
[1] Université de Toulouse, INSA, ICA (Institut Clément Ader), F-31077 Toulouse, 135, Avenue de Rangueil
来源：
International Journal of Machining and Machinability of Materials | 2010年 / 8卷 / 3-4期
关键词：
CNC dynamics; High-speed machining; HSM; Sculptured surfaces; Simulation;
D O I：
10.1504/IJMMM.2010.036142
中图分类号：
学科分类号：
摘要：
Three-axis high-speed machining (HSM) of sculptured surfaces is currently programmed with linear or B-spline interpolation using CAM software. In both cases, due to axis dynamic limits of the CNC machine-tools, the desired feed rate is rarely reached, leading to lower productivity and impaired quality. In order to allow an optimisation of the process, a simulator is proposed in this paper. Changes in position, velocity, acceleration and jerk of each axis during three-axis HSM operations are modelled, based on a trapezoidal acceleration scheme. The relative speed between tool and workpiece is then computed for linear segments as for B-spline paths. Transitions between segments are also simulated. The three-axis simulator is experimentally validated through machining of a turbine blade. Copyright © 2010 Inderscience Enterprises Ltd.
引用
收藏
页码：326 / 338
页数：12
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