| 基于Z-map模型的球头铣刀铣削力建模与仿真 |
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| 引用本文： | 张臣,周儒荣,庄海军,周来水.基于Z-map模型的球头铣刀铣削力建模与仿真[J].航空学报,2006,27(2):347-352. |
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| 作者姓名： | 张臣 周儒荣 庄海军 周来水 |
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| 作者单位： | 南京航空航天大学,CAD/CAM工程研究中心,江苏,南京,210016 |
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| 基金项目： | 国家科技攻关项目
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江苏省科技攻关项目
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高等学校优秀青年教师教学科研奖励计划 |
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| 摘 要： | 对球头铣刀铣削力建模进行了研究。在Z-map仿真模型的基础上,提出了识别加工中参与切削的切削刃单元的方法,通过考虑刀具偏心和刀具变形对瞬时切削厚度的影响,推导出了瞬时切削厚度的表达式,由铣削力和切削负载之间的关系,建立了球头铣刀三轴铣削力仿真模型。铣削力仿真计算与铣削实验的对比表明在考虑刀具偏心和刀具变形后所建立的铣削力模型能够对铣削力进行准确的预测。
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| 关 键 词： | 计算机辅助制造 铣削力模型 Z-map模型 球头铣刀 刀具偏心 刀具变形 |
| 文章编号： | 1000-6893(2006)02-0347-06 |
| 修稿时间： | 2005年3月11日 |
Modeling and Simulation of Ball-end Milling Forces Based on Z-map Model |
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| ZHANG Chen,ZHOU Ru-rong,ZHUANG Hai-jun,ZHOU Lai-shui.Modeling and Simulation of Ball-end Milling Forces Based on Z-map Model[J].Acta Aeronautica et Astronautica Sinica,2006,27(2):347-352. |
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| Authors: | ZHANG Chen ZHOU Ru-rong ZHUANG Hai-jun ZHOU Lai-shui |
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| Institution: | Research Center of CAD/CAM Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | The model of ball-end cutter milling forces is studied. The algorithm to identify the engaging cutting edges is proposed using Z-map simulation model in ball-end milling process. The expression of instantaneous chip thickness is discussed by analyzing the effects of cutter eccentricity and deflection. Then ball-end cutter milling forces simulation model is established on the basis of the relationship between milling force and chip load. At the same time, the simulation results agree well with those obtained from experiments and show that the presented milling forces model considering cutter eccentricity and deflection can predict milling forces correctly. |
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| Keywords: | CAM milling forces model Z-map model ball-end mill cutter cutter eccentricity cutter deflection |
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