东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (5): 705-709.DOI: 10.12068/j.issn.1005-3026.2019.05.019

• 机械工程 • 上一篇    下一篇

轴向超声振动辅助钻削机理与试验研究

田英健， 邹平， 陈硕， 温泉   

  1. (东北大学 机械工程及自动化学院， 辽宁 沈阳110819)
  • 收稿日期:2018-03-23 修回日期:2018-03-23 出版日期:2019-05-15 发布日期:2019-05-17
  • 通讯作者: 田英健
  • 作者简介:田英健(1991-)，男，河南濮阳人，东北大学博士研究生; 邹平(1963-)，男，辽宁沈阳人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51505074); 沈阳市科学技术计划项目(F16-205-1-05).

Cutting Mechanism Research and Experimental Study on Axial Ultrasonic Vibration Assisted Drilling

TIAN Ying-jian， ZOU Ping， CHEN Shuo， WEN Quan   

  1. School of Mechanical Science & Engineering， Northeastern University， Shenyang 110819， China.
  • Received:2018-03-23 Revised:2018-03-23 Online:2019-05-15 Published:2019-05-17
  • Contact: ZOU Ping
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摘要： 针对传统钻削过程中经常出现断屑、排屑困难以及加工质量差等问题， 提出了轴向超声振动辅助钻削加工方法，并研究了其运动特性和断屑机理.利用自行设计的轴向超声振动辅助钻削系统对45号钢进行了传统钻削与轴向超声振动辅助钻削的对比试验.从孔的粗糙度、表面微观形貌、切屑形态等方面进行研究.结果表明，相对于传统钻削，轴向超声振动辅助钻削能有效降低孔表面粗糙度，改善孔表面微观形貌.另外，对试验结果进行方差分析，结果显示主轴转速和超声振幅对孔表面粗糙度有显著影响，其中当振幅在20μm，主轴转速在450r/min时加工效果最好.

关键词: 轴向超声振动, 辅助钻削, 45号钢材料, 运动特性, 断屑机理, 加工质量

Abstract: An axial ultrasonic vibration assisted drilling method was proposed for solving problems such as difficulties in chip breaking， chip removal and poor processing quality in traditional drilling process. Motion characteristics and chip breaking mechanism were studied， and the comparative tests of conventional drilling and axial ultrasonic vibration assisted drilling were performed on the 45# steel using an own-designed axial ultrasonic vibration assisted drilling system. Investigations were done toward the machining precision of holes， surface morphology and the shape of chips. The experimental results demonstrate that axial ultrasonic vibration assisted drilling can effectively reduce the surface roughness and improve the microscopic morphology compared with the traditional processing. In addition， variance analysis is used for data processing， indicating that the spindle speed and ultrasonic amplitude have significant influences on the surface roughness， and the processing effect is best when the amplitude is 20μm and spindle speed is 450r/min.

Key words: axial ultrasonic vibration, assisted drilling, 45# steel materials, movement characteristics, mechanism of chip broken, machining quality

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