北京航空航天大学学报 ›› 2019, Vol. 45 ›› Issue (8): 1606-1612.doi: 10.13700/j.bh.1001-5965.2018.0712

• 超声加工技术 • 上一篇    下一篇

钛合金薄壁件高速超声椭圆振动铣削机理和试验

张明亮1,2, 张德远1,3, 刘佳佳1, 高泽1, 韩雄4   

  1. 1. 北京航空航天大学 机械工程及自动化学院, 北京 100083;
    2. 北京航空航天大学 沈元荣誉学院, 北京 100083;
    3. 北京航空航天大学 生物医学工程高精尖创新中心, 北京 100083;
    4. 航空工业成都飞机工业(集团)有限责任公司, 成都 610073
  • 收稿日期:2018-12-02 出版日期:2019-08-20 发布日期:2019-09-06
  • 通讯作者: 张德远 E-mail:zhangdy@buaa.edu.cn
  • 作者简介:张明亮 男,博士研究生。主要研究方向:超声铣削、生物制造;张德远 男,博士,教授,博士生导师。主要研究方向:难加工材料高效加工技术、振动切削与功率超声技术。
  • 基金资助:
    国家自然科学基金(51475031)

Mechanism and experiment of high-speed ultrasonic elliptical vibration milling of thin-walled titanium alloy parts

ZHANG Mingliang1,2, ZHANG Deyuan1,3, LIU Jiajia1, GAO Ze1, HAN Xiong4   

  1. 1. School of Mechanical Engineering and Automation, Beihang University, Beijing 100083, China;
    2. Shenyuan Honors College, Beihang University, Beijing 100083, China;
    3. Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University Beijing 100083, China;
    4. AVIC Chengdu Aircraft Industrial(Group) Co., Ltd., Chengdu 610073, China
  • Received:2018-12-02 Online:2019-08-20 Published:2019-09-06
  • Supported by:
    National Natural Science Foundation of China (51475031)

摘要: 针对航空领域中钛合金薄壁件在铣削过程中存在加工精度差、加工效率低等问题,提出了钛合金薄壁件高速超声椭圆振动铣削的方法。首先,在铣削加工中引入高速超声振动切削理念,使切削刀具刀尖附加椭圆振动进行超声频断续切削,可改善加工质量且突破了超声振动加工对临界速度的限制。然后,分析了该方法的分离原理,采用独立研制的超声椭圆振动铣削刀柄装置针对钛合金薄壁件进行了切削试验。试验结果显示,高速超声椭圆振动铣削相较于普通铣削,切削力降低20%~30%,且已加工表面让刀量降幅20%~30%,表面缺陷减少,表面粗糙度降低。

关键词: 高速超声椭圆振动, 铣削, 钛合金薄壁件, 切削力, 让刀量

Abstract: A high-speed ultrasonic elliptical vibration milling method is proposed for poor processing quality and low processing efficiency in milling of thin-walled titanium alloy parts in aerospace. Firstly, high-speed ultrasonic elliptic vibration milling combines high-speed ultrasonic vibration cutting concept with milling. A high-frequency intermittent cutting where the cutting tool tip moves in accordance with the elliptical trajectory can effectively improve the quality of machining and break through the limitations of the ultrasonic vibration processing on the critical speed. Then, the separation principle of the process is analyzed, and a self-developed ultrasonic vibration milling device is used in the experiment with thin-walled titanium alloy parts. The experimental results show that, compared to the common milling processing, the cutting force reduction and the relieving amount reduction for high-speed ultrasonic elliptical vibration milling method are both about 20% to 30%, and meanwhile the surface defects and roughness are cut down.

Key words: high-speed ultrasonic elliptical vibration, milling, thin-walled titanium alloy parts, cutting force, relieving amount

中图分类号: 


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