Experimental Study on the Milling of Microchannels with Assistant Ultrasonic Vibration of Workpiece

doi:10.7652/xjtuxb201609019

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Experimental Study on the Milling of Microchannels with Assistant Ultrasonic Vibration of Workpiece

更新时间：2025-07-09

- Experimental Study on the Milling of Microchannels with Assistant Ultrasonic Vibration of Workpiece
- Vol. 50, Issue 9, Pages: 119-124(2016)
- 作者机构：
  
  1. 广西大学广西制造系统与先进制造技术重点实验室,南宁,530004
  2. 中国地质大学(武汉)机械与电子信息学院,武汉,430074
  3. 华中科技大学材料成形与模具技术国家重点实验室,武汉,430081
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201609019
  CLC： TG663
- Online First：10 September 2016，
  
  Published：2016
- 稿件说明：
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Experimental Study on the Milling of Microchannels with Assistant Ultrasonic Vibration of Workpiece[J]. 2016, 50(9): 119-124.
DOI：

Experimental Study on the Milling of Microchannels with Assistant Ultrasonic Vibration of Workpiece[J]. 2016, 50(9): 119-124. DOI： 10.7652/xjtuxb201609019.

摘要

为了改善不锈钢材料的微通道高速铣削成形特性

利用自行研制的具有双直槽结构的矩形六面体超声变幅器实现工件的水平超声振动

对304奥氏体不锈钢板载微通道结构进行工件超声振动辅助微铣削成形加工试验

研究了不同工艺参数对微通道成形表面质量的影响。试验结果表明:在超声辅助微铣削加工过程中

当工件的水平超声振幅为4 μm时可有效改善切削加工表面的粗糙度

偏大或偏小的超声振幅都会导致微通道表面质量变差; 当每齿进给量接近刀具最小切削厚度时

微铣刀钝圆半径引起的尺寸效应最为显著

表面切削加工质量较差

而略大于刀具最小切削厚度的微铣削每齿进给量以及较小的轴向切深

都有利于改善不锈钢微通道表面的铣削成形质量。

Abstract

To improve the high-speed milling performance of stainless steel microchannels

a horizontal ultrasonic vibration of workpiece was excited by a self-developed rectangular hexahedron sonotrode with double straight slots. And the micro-milling experiments of micro-channel structure on the 304 austenitic stainless steel sheets with ultrasonic vibration of workpiece were conducted to study the effect of different experimental parameters on the surface quality of microchannels. The experimental results indicate that this approach can improve the surface roughness of the microchannels when the horizontal ultrasonic vibration amplitude of the workpiece reaches 4 μm

but smaller or larger ultrasonic amplitude will lead to poor surface roughness. When the feed rate per tooth is close to the minimum cutting thickness of micro-milling tool

the size effect caused by the blunt round radius of micro milling cutter will become significant and the surface roughness turns to poorer. The feed rate per tooth slightly larger than the minimum cutting thickness of micro-milling tool and the small axial cutting depth are both beneficial to improving the milling quality of the workpieces.

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references

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