骨科用球头铣刀的铣削力预测模型研究  

Study on Prediction Model of Bone Milling Force of Ball-end Milling Cutter

作　　者：何玲瑞 胡亚辉[1] 林贻泽 张善青[1] 张春秋[1] 郑清春[1] He Lingrui;Hu Yahui;Lin Yize;Zhang Shanqing;Zhang Chunqiu;Zheng Qingchun(Tianjin University of Technology,Tianjin 300382,China;不详)

机构地区：[1]天津市先进机电系统设计与智能控制重点实验室,机电工程国家级实验教学示范中心(天津理工大学),天津市300382

出　　处：《工具技术》2022年第3期70-74,共5页Tool Engineering

基　　金：国家自然科学基金面上项目(62073239);国家自然项目基金(12072235)。

摘　　要：在骨科手术中,铣削力过大会导致铣刀断裂、骨组织二次损伤等问题。本文基于ABAQUS仿真软件建立了球头铣刀铣削皮质骨有限元模型,并且验证了模型的正确性。设计了正交试验,利用极差分析法得到铣削参数对铣削力的影响程度。利用多元线性回归处理试验结果,建立了皮质骨铣削力的预测模型。研究结果表明,对铣削力影响最大的是进给速度v_(f),主轴转速n次之,刀具直径d的影响最小。实际操作中,合理选择铣削参数可以提高加工效率,通过控制切削用量可以获得最优的铣削力。In bone surgery,the excessive milling force leads to milling cutter fracture,bone tissue secondary injury and other problems,thus affecting the results of surgery.Based on ABAQUS simulation software,the finite element model of cortical bone milling with ball-end milling cutter is established and the correctness of the model is verified.Orthogonal tests are designed and range analysis method is used to obtain the influence degree of milling parameters on the milling force.The results show that the feed speed v_(f) has the greatest influence on the milling force,followed by the spindle speed n,and the cutter diameter d has the least influence.Reasonable selection of milling parameters in practical operation can improve the machining efficiency,and the optimal milling force can be obtained by controlling the cutting amount.

关 键 词：铣削力 皮质骨 有限元仿真 回归分析 

分 类 号：TG714[金属学及工艺—刀具与模具] TG501.3