| 带再生反馈的柔性立铣刀铣削过程模型 |
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| 引用本文： | 徐安平,曲云霞,李为民,张大卫,黄田. 带再生反馈的柔性立铣刀铣削过程模型[J]. 机械工程学报, 1999, 35(5): 31-36 |
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| 作者姓名： | 徐安平 曲云霞 李为民 张大卫 黄田 |
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| 作者单位： | 河北工业大学机械工程学院;天津大学 |
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| 摘 要： | 精确合理的铣削过程模型是研究铣削加工表面形貌的关键。首先根据线性弹性体基本假设，将铣削过程中刀杆所受的力和产生的变形均分解为动、静两部分；然后运用微分几何理论，考虑实际切削过程中的再生效应，导出动态铣削力集度表达式，进而建立刀杆的动态变形模型，并构造出一套与之相应的高效快速数值仿真算法，同时还给出刀杆静态变形量的计算方法；最后通过仿真实例说明该模型的合理性。
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| 关 键 词： | 表面形貌 立铣刀 柔性刀杆 铣削过程模型 再生反馈 |
A MODEL FOR FLEXIBLE END MILLING PROCESS WITH REGENERATIVE FEEDBACK |
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| Xu Anping,Qu Yunxia,Li Weimin,Zhang Dawei,Huang Tian. A MODEL FOR FLEXIBLE END MILLING PROCESS WITH REGENERATIVE FEEDBACK[J]. Chinese Journal of Mechanical Engineering, 1999, 35(5): 31-36 |
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| Authors: | Xu Anping Qu Yunxia Li Weimin Zhang Dawei Huang Tian |
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| Affiliation: | Hebei University of Technology，Tianjin Tianjin Tianjin University |
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| Abstract: | Precisely and reasonably modeling for milling process is the key to study milled surface topography. First of all, according to the basic hypothesis of linear elasticity, the force acting on the cutter and its deflection in milling process are both divided into two parts: the static and dynamic. Then, applying differential geometry theory, by considering the regenerative feedback in practical milling process, the dynamic milling force acting on the unit length of cutter is derived, so that a new kind of dynamic deflection model of cutter is established. Based on this model, a new set of efficient numerical simulation algorithm is presented. In the mean time, the static deflection of cutter is also formulated. Finally, the rationality of this model is shown by simulation instances. |
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| Keywords: | End mills Flexible cutter Regenerative feedback Milling process model Milled surface topography |
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