骨组织微创切削微细铣刀设计制备及铣削实验研究

doi:10.3969/j.issn.1000-1093.2020.01.018

兵工学报 ›› 2020, Vol. 41 ›› Issue (1): 152-160.doi: 10.3969/j.issn.1000-1093.2020.01.018

骨组织微创切削微细铣刀设计制备及铣削实验研究

高鹏¹，梁志强^2,3，王西彬³，李世迪¹，周天丰^2,3

(1.北京理工大学机械与车辆学院，北京 100081； 2.北京理工大学医工融合研究院，北京 100081; 3.北京理工大学先进加工技术国防重点学科实验室, 北京 100081)

收稿日期:2019-04-15 修回日期:2019-04-15 上线日期:2020-02-22
通讯作者: 梁志强（1984—），男，副教授，博士生导师 E-mail:liangzhiqiang@bit.edu.cn
作者简介:高鹏（1987—），男，博士。E-mail：gaoqindao@126.com
基金资助:
国家自然科学基金项目(51975053、51575049)；国家重点基础研究计划项目(2015CB059900)

Design and Fabrication of Micro-end Mills for Minimally Invasive Milling of Bone Tissue

GAO Peng¹, LIANG Zhiqiang^2,3, WANG Xibin³, LI Shidi¹, ZHOU Tianfeng^2,3

(1.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China; 2.Institute of Engineering Medicine, Beijing Institute of Technology, Beijing 100081, China;3.Key Laboratory of Fundamental Science for Advanced Machining, Beijing Institute of Technology, Beijing 100081, China)

Received:2019-04-15 Revised:2019-04-15 Online:2020-02-22

摘要/Abstract

摘要： 针对医疗骨组织微创切削用超小直径微细铣刀的特殊需求，开展了异形结构微细铣刀结构优化设计研究。设计并制备了直径50 μm的螺旋形、□形和△形3种超小直径微细铣刀，并对比研究其切削性能。分析不同形状的微细刀具几何结构特征，对微细铣刀进行静力学仿真分析，研究不同几何结构对微细铣刀刚度和强度的影响；分析3种微细刀具精密刃磨方法和刃磨质量；开展骨组织微创切削微细铣刀切削实验，对骨组织微细切削形貌进行检测，对比分析不同刀具对骨组织切削质量的影响。实验结果表明：在微细铣刀切削骨组织实验中，螺旋形微细铣刀在切削过程中过早地发生了刀具的整体折断，△形和□形铣刀能够进行长时间切削；△形铣刀切削的沟槽毛刺和崩边较小，表面质量明显优于其他刀具，更适合骨组织微创伤切削。

关键词: 微细铣刀, 骨组织, 微创切削, 铣削实验

Abstract: For the special requirement of ultra-small micro-end mill for minimally invasive milling of bone tissue, the structural optimization design of special-shaped micro end mills is studied. Three kinds of micro-end mills (helical-shaped, △-shaped and □-shaped) with diameter of 50 μm were designed and manufactured, and their milling performances were also investigated. The geometric structures of micro-end mills with different shapes are analyzed, and the static analysis of the mills is conducted to study the effect of geometric structure of micro-end mill on its stiffness and strength. The precision milling method and milling quality of three kinds of micro-end mills are investigated. The bone tissue minimally invasive milling experiments using ultra-small micro end mills were carried out, and the morphologies of milled bone tissues were observed. The milling quality of bone tissue workpiece was analyzed. In the process of bone tissue micro milling, the helical-shaped micro-end mill is prematurely fractured, △- and □-shaped micro-end mills can cut for long time. For the △-shaped micro-end mill, the machined grooves have small burr width and edge collapse, and higher surface quality. The △-shaped micro-end mill is more suitable for minimally invasive milling of bone tissue. Key

Key words: micromillingcutter, bonetissue, minimallyinvasivemilling, millingexperiment

中图分类号:

TH777
TG714

高鹏，梁志强，王西彬，李世迪，周天丰. 骨组织微创切削微细铣刀设计制备及铣削实验研究[J]. 兵工学报, 2020, 41(1): 152-160.

GAO Peng, LIANG Zhiqiang, WANG Xibin, LI Shidi, ZHOU Tianfeng. Design and Fabrication of Micro-end Mills for Minimally Invasive Milling of Bone Tissue[J]. Acta Armamentarii, 2020, 41(1): 152-160.

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第41卷第1期
2020 年1月兵工学报ACTA
ARMAMENTARIIVol.41No.1Jan.2020

骨组织微创切削微细铣刀设计制备及铣削实验研究

Design and Fabrication of Micro-end Mills for Minimally Invasive Milling of Bone Tissue

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