旋转超声加工振幅与实际切削深度特性研究

doi:10.3969/j.issn.1000-1093.2013.07.014

兵工学报 ›› 2013, Vol. 34 ›› Issue (7): 883-888.doi: 10.3969/j.issn.1000-1093.2013.07.014

旋转超声加工振幅与实际切削深度特性研究

张承龙, 冯平法, 吴志军

清华大学机械工程系, 北京100084

收稿日期:2012-12-20 修回日期:2012-12-20 上线日期:2014-08-19
作者简介:张承龙(1986—), 男, 博士研究生。
基金资助:
国家自然科学基金项目(50975153)

Research on the Properties of Ultrasonic Vibration Amplitude and Actual Cutting Depth in Rotary Ultrasonic Machining

ZHANG Cheng-long, FENG Ping-fa, WU Zhi-jun

Department of Precision Instrument and Mechanology, Tsinghua University, Beijing 100084, China

Received:2012-12-20 Revised:2012-12-20 Online:2014-08-19

摘要/Abstract

摘要： 旋转超声加工中金刚石砂轮超声振幅大小、实际切削深度的正确判定以及工艺参数对金刚石砂轮超声振动幅度影响规律的研究对旋转超声高效精密加工有着重要意义。结合旋转超声加工(RUM)时磨粒的运动及切削特性,分析了磨粒的实际切削深度特性,开展了实际切削深度与超声振幅关系的试验研究;通过改变主轴转速、进给速度、切削深度等工艺参数,讨论了工艺参数对加工时金刚石砂轮超声振幅特性的影响。研究表明:旋转超声面铣削加工时,超声振幅与轴向进给的有效叠加决定实际切削深度;金刚石砂轮的超声振幅具有一定的稳定性,可以有效确保旋转超声加工工件的尺寸精度。

关键词: 机械制造工艺与设备, 旋转超声加工, 端面铣削, 实际切深, 超声振幅

Abstract: The determinations of actual cutting depth and ultrasonic vibration amplitude, and the influences of input variables on ultrasonic vibration amplitude have important significance on the high efficiency and precision processing of rotary ultrasonic machining (RUM). The features of actual cutting depth during RUM are presented by analyzing the kinematics and cutting characteristics of diamond tool. Experiments are conducted to explore the relations of actual cutting depth and ultrasonic vibration amplitude,and the effects of spindle speed, feedrate and cutting depth on ultrasonic vibration amplitude. The results show that actual cutting depth is determined by effective superpositied ultrasonic vibration amplitude and cutting depth. The ultrasonic vibration amplitude stays unchanged with the changes in input variables (spindle speed, feedrate, and cutting depth), which can ensure the dimensional accuracy of the workpiece during RUM.

Key words: manufacturing technology and equipment, rotary ultrasonic machining, face milling, actual cutting depth, ultrasonic vibration amplitude

中图分类号:

TG663

张承龙, 冯平法, 吴志军. 旋转超声加工振幅与实际切削深度特性研究[J]. 兵工学报, 2013, 34(7): 883-888.

ZHANG Cheng-long, FENG Ping-fa, WU Zhi-jun. Research on the Properties of Ultrasonic Vibration Amplitude and Actual Cutting Depth in Rotary Ultrasonic Machining[J]. Acta Armamentarii, 2013, 34(7): 883-888.

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旋转超声加工振幅与实际切削深度特性研究

Research on the Properties of Ultrasonic Vibration Amplitude and Actual Cutting Depth in Rotary Ultrasonic Machining

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