锥球头铣刀铣削力建模及变齿距减振优化设计
2019-04-23
作者：刘宽，孙剑飞
单位：北京航空航天大学
摘要：在航空发动机叶轮加工过程中，径向铣削力带来的切削振动对加工质量有较大的影响。为了降低切削振动，基于某叶轮的实际加工工况，利用有限元仿真和MATLAB软件计算进行了铣削力建模和分析，以减小切削振动幅值、降低铣刀弯曲变形程度为优化条件进行了铣刀结构的优化设计。
关键词：铣削力模型；有限元仿真；振动幅频特性；弯曲变形
中图分类号：TG501；TH162文献标志码：ADOI：10.3969/j.issn.1000-7008.2019.04.013
Milling Force Modeling and Optimization of Variable Reduction for
Cone Ball End Milling Cutter
Liu Kuan，Sun Jianfei
Abstract:Radial cutting force and vibration have an essential influence on machining quality while machining aeroengine impeller.In order to reduce cutting vibration，a milling force model has been given based on finite element simulation and MATLAB numerical method in a certain machining condition.Besides，the structure of mill cutters has been optimized for achieving minimum vibration amplitude and minimum cutter bending deformation.
Keywords:cutting force model；finite element simulation；amplitude frequency characteristic of vibration；bending deformation