| 慢刀伺服加工自由曲面的表面形貌预测 |
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| 引用本文： | 铁贵鹏,戴一帆,尹自强,关朝亮.慢刀伺服加工自由曲面的表面形貌预测[J].航空精密制造技术,2009,45(6). |
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| 作者姓名： | 铁贵鹏 戴一帆 尹自强 关朝亮 |
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| 作者单位： | 国防科技大学机电工程与自动化学院,长沙,410073 |
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| 摘 要： | 本文通过建立自由曲面车削加工的仿真预测模型,在加工前进行参数优选.该模型考虑了刀具几何形状、切削用量及刀具轨迹点和插补方法对加工后自由曲面的表面形貌的影响.对渐进式近视镜片光学元件进行了加工实验,实测粗糙度R_a=31nm,仿真得到粗糙度R_a=23nm.实验验证了仿真模型的有效性.
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| 关 键 词： | 慢刀伺服 自由曲面 表面形貌 仿真 |
Prediction of Surface Topography of Freeform Optics Fabricated by Using Slow Tool Servo |
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| Abstract: | The parameters before machining could be chosen by the establishment of free-form turning model. The model takes into account the tool geometry, the cutting parameters, the tool path and the method of interpolation which influence the surface topography. Machine experiment to near-sight lens has been taken. The measured roughness is Ra=31nm while the predicted roughness is Ra=23nm. The experiment verified the validity of the simulation model. |
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| Keywords: | slow tool servo freeform surface surface topography computer simulation |
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