• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2019, Vol. 55 ›› Issue (7): 249-256.doi: 10.3901/JME.2019.07.249

• 制造工艺与装备 • 上一篇    

高速超声椭圆振动铣削腹板表面质量研究

高泽1,2, 张德远1,2, 李哲1,2, 姜兴刚1,2, 刘佳佳1,2   

  1. 1. 北京航空航天大学机械工程及自动化学院 北京 100191;
    2. 北京航空航天大学先进加工技术研究中心 北京 100191
  • 收稿日期:2018-04-11 修回日期:2018-09-20 出版日期:2019-04-05 发布日期:2019-04-05
  • 通讯作者: 张德远(通信作者),男,1963年出生,博士,教授,博士研究生导师。主要研究方向为难加工材料高效加工技术、振动切削与功率超声技术。E-mail:zhangdy@buaa.edu.cn
  • 作者简介:高泽,男,1993年出生。主要研究方向为振动加工。E-mail:sy1607403@buaa.edu.cn

Research on Surface Quality of Titanium Alloy Webs via High-speed Ultrasonic Elliptical Vibration Milling

GAO Ze1,2, ZHANG Deyuan1,2, LI Zhe1,2, JIANG Xinggang1,2, LIU Jiajia1,2   

  1. 1. School of Mechanical Engineering and Automation, Beihang University, Beijing 100191;
    2. Research Center for Advanced Processing Technology, Beihang University, Beijing 100191
  • Received:2018-04-11 Revised:2018-09-20 Online:2019-04-05 Published:2019-04-05

摘要: 针对航空航天常用的钛合金机械加工特性差、加工质量低、效率差的问题,提出一种新的加工工艺,高速超声椭圆振动铣削工艺。它是一种刀尖在平面内按椭圆轨迹运动的超声频间歇性切削方法,能够有效地改善铣削质量且突破了常规超声振动加工对临界速度的限制。将高速超声振动铣削工艺引入航空常见薄壁零件结构,腹板的加工中。先分析该工艺微观分离原理,并设计试验验证该工艺在钛合金腹板加工中的效果。结果显示:高速超声振动铣削工艺相比于普通铣削的加工方式在已加工表面让刀量及表面粗糙度值两方面均有稳定提升。粗糙度降幅约10%~40%,让刀量降幅50%左右。

关键词: 表面质量, 薄壁腹板, 高速超声铣削, 钛合金, 椭圆振动

Abstract: To solve the problems of the poor machining performance, low processing quality and poor efficiency of titanium alloys commonly used in aerospace, a new processing technology, high-speed ultrasonic elliptical vibration milling process is proposed. It is an ultrasonic intermittent cutting method in which the tip of the blade moves in an elliptical path in the plane, which can effectively improve the quality of milling and break through the limitations of the conventional ultrasonic vibration processing on the critical speed. High-speed ultrasonic vibration milling process is introduced into the common thin-walled parts structure, web processing. The principle of microscopic separation of the process is analyzed first, and the experiment is designed to verify its effect in the processing of titanium alloy webs. The results show that the high-speed ultrasonic vibration milling process has a stable increase in both the number of cutters and the surface roughness value in the processed surface compared to the ordinary milling processing method. The roughness reduction is about 10% to 40%, and the relieving amount reduction is about 50%.

Key words: elliptical vibration, high-speed ultrasonic milling, surface quality, thin-wall web, titanium alloy

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