| 基于Deform的大长径比PCD微铣刀结构设计及参数优化 |
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| 引用本文： | 王琛,郝秀清,刘凌辉,陈梦月,何宁.基于Deform的大长径比PCD微铣刀结构设计及参数优化[J].金刚石与磨料磨具工程,2019,39(4):30-36. |
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| 作者姓名： | 王琛 郝秀清 刘凌辉 陈梦月 何宁 |
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| 作者单位： | 南京航空航天大学 机电学院,南京,210016;南京航空航天大学 机电学院,南京,210016;南京航空航天大学 机电学院,南京,210016;南京航空航天大学 机电学院,南京,210016;南京航空航天大学 机电学院,南京,210016 |
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| 基金项目： | 南京航空航天大学研究生创新基地(实验室)开放基金(No.kfjj20180501)。国防基础研究计划(No.JCKY2018605C018)国家自然科学基金(No.51575268)航空科学基金(No.2017ZE52055) |
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| 摘 要： | 微细铣削技术是最适合加工高深宽比微结构的微细加工技术之一，而微铣刀制约着微细铣削技术的发展。针对高深宽比微结构的微细铣削加工，设计一种大长径比PCD直刃微铣刀，通过Deform有限元仿真研究不同微铣刀结构参数对铣削力和毛刺高度的影响规律。进一步地，采用多目标曲面响应分析方法对侧刃后角、底刃后角和底刃倾角3个因素进行试验设计，得到优化后的微铣刀结构参数为侧刃后角30°，底刃后角15°和底刃倾角7°。
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| 关 键 词： | 微细铣削技术 大长径比PCD微铣刀 Deform 曲面响应分析方法 |
Structure design and parameter optimization of PCD micro-milling cutter with large aspect ratio based on Deform |
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| WANG Chen,HAO Xiuqing,LIU Linghui,CHEN Mengyue,HE Ning.Structure design and parameter optimization of PCD micro-milling cutter with large aspect ratio based on Deform[J].Diamond & Abrasives Engineering,2019,39(4):30-36. |
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| Authors: | WANG Chen HAO Xiuqing LIU Linghui CHEN Mengyue HE Ning |
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| Affiliation: | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China |
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| Abstract: | Micro-milling technology is one of the most suitable micro-machining techniques for processing high aspect ratio microstructures, but the tools limit its development. In view of micro-milling of high aspect ratio microstructure, a new PCD miller was proposed with large length-diameter ratio and straight edges. The influence of tool structure on milling force and burr height was studied by Deform finite element simulation. Furthermore, the multi-objective response surface methodology is used to test three factors, namely the side edge clearance (SEC), the bottom edge clearance (BEC) and the bottom edge inclination angle (BEIA). Finally, the optimized structural parameters of micro-milling tool are obtained, which are SEC 30°, BEC 15°, BEIA 7°. |
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