微晶玻璃超声辅助磨削制孔工艺参数对表面质量及出口崩边的影响研究
Study on the Effect of Ultrasonic Assisted Grinding Parameters on the Surface Quality and Edge Breakage at Hole Outlet of Microcrystalline Glass
张文超 1崔恩铭 2张保全 3王明伟2
作者信息
- 1. 北京精雕科技集团有限公司,北京 102308;北京理工大学机械与车辆学院,北京 100081;大连工业大学机械工程与自动化学院,辽宁大连 116034
- 2. 大连工业大学机械工程与自动化学院,辽宁大连 116034
- 3. 北京精雕科技集团有限公司,北京 102308
- 折叠
摘要
为研究微晶玻璃超声辅助磨削制孔过程中工艺参数对小孔内壁表面质量及出口崩边的影响,在超声振幅 3 μm、频率 20 kHz条件下,采用有限元方法分析了加工过程中磨削力随着主轴转速、进给速度等工艺参数变化的规律.利用五轴加工机床分别开展了超声辅助磨削与普通磨削的加工试验,对比了工件表面粗糙度及出口崩边状况.结果表明:相同工艺参数下,超声辅助磨削相较于普通磨削,可显著减小磨削力,加工小孔的崩边尺寸更小,工件表面质量更好.
Abstract
To study the effect of ultrasonic grinding parameters on the surface quality and edge breakage at hole outlet of microcrystalline glass,the ultrasonic amplitude of 3 μm and vibration frequency of 20 kHz were selected in finite element method to analyze the changes of grinding force with the process parameters(feed speed,rotation speed).The force changes of ordinary grinding and ultrasonic grinding under the same process parameters were compared.Then,ultrasonic assisted grinding and ordinary grinding were carried out on five-axis machine tool to compare the surface roughness of the workpiece and the edge breakage at the outlet.The results showed that ultrasonic assisted grinding can significantly reduce the grinding force compared with ordinary grinding,and the experimental results also showed that the small hole edge breakage size under ultrasonic assisted grinding is smaller than that of ordinary grinding.
关键词
微晶玻璃/超声辅助磨削/工艺参数/磨削力/崩边Key words
microcrystalline glass/ultrasonic assisted grinding/process parameters/grinding force/edge breakage引用本文复制引用
基金项目
辽宁省自然科学基金指导项目(201602056)
辽宁省教育厅高校基本科研项目(2023)(JYTMS20230403)
出版年
2024
NETL
NSTL
万方数据