• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2017, Vol. 53 ›› Issue (19): 83-89.doi: 10.3901/JME.2017.19.083

• 特邀专栏:超声加工技术 • 上一篇    下一篇

超声振动螺线磨削表面微观形貌建模与仿真研究

王秋燕1, 梁志强1, 王西彬1, 周天丰1, 赵文祥1, 吴勇波2, 焦黎1   

  1. 1. 北京理工大学先进加工技术国防重点学科试验室 北京 100081;
    2. 秋田县立大学系统科学技术学部 秋田 0150055 日本
  • 收稿日期:2016-06-15 修回日期:2016-12-11 出版日期:2017-10-05 发布日期:2017-10-05
  • 通讯作者: 梁志强(通信作者),男,1984年出生,博士,副教授。主要研究方向为难加工材料切削磨削技术,微细刀具设计与制造技术,E-mail:liangzhiqiang@bit.edu.cn
  • 作者简介:王秋燕,女,1986年出生,博士研究生。主要研究方向为超声振动磨削及表面表征技术,E-mail:wangqy1019@126.com;王西彬,男,1958年出生,博士,教授,博士研究生导师。主要研究方向为先进切削磨削、精密微小型制造、绿色制造、生物加工与成形等,E-mail:cutting0@bit.edu.cn
  • 基金资助:
    国防基础研究计划(JCKY2016208B006)、国家重点基础研究计划(2015CB059900)、国家自然科学基金(51205024,51575049)和国防基础科研计划(A0920132008)资助项目。

Research on Modeling and Simulation of Surface Microtopography in Ultrasonic Vibration Spiral Grinding

WANG Qiuyan1, LIANG Zhiqiang1, WANG Xibin1, ZHOU Tianfeng1, ZHAO Wenxiang1, WU Yongbo2, JIAO Li1   

  1. 1. Key Laboratory of Fundamental Science for Advanced Machining, Beijing Institute of Technology, Beijing 100081;
    2. Faculty of Systems Science and Technology, Akita Prefectural University, Akita 0150055, Japan
  • Received:2016-06-15 Revised:2016-12-11 Online:2017-10-05 Published:2017-10-05

摘要: 为了实现高效率、高质量、低损伤的硬脆材料加工,对工件或砂轮同时施加砂轮轴向和径向的超声振动,该方法的显著特点是磨粒切削轨迹呈三维空间螺旋线型,将其定义为超声振动螺线磨削方法。在磨削工艺和二维超声振动的多参数共同作用下,材料去除机理产生复杂变化,表面微观形貌创出过程变得极其复杂。为此,提出一种超声振动螺线磨削加工表面数值仿真方法。基于超声振动螺线磨削几何映射关系,建立磨粒相对工件的空间螺旋线切削运动模型,进而给出超声振动螺线磨削加工表面生成模型,模拟出普通磨削和超声振动磨削的三维表面微观形貌,对比分析了超声振动对表面形成过程的影响规律。最后将仿真表面与磨削试验表面对比,发现两者微观形貌特征规律基本一致,验证了仿真方法的正确性和有效性。

关键词: 表面形成机制, 超声振动螺线磨削, 仿真, 运动轨迹

Abstract: In order to achieve high efficiency, high quality and low damage machining of hard brittle materials, additional ultrasonic vibrations in the axial and radial directions of workpiece/grinding wheel are applied simultaneously while grinding. The unique property of this technique is the cutting trajectory of abrasive grain is a spiral line. Accordingly, this technique is named as ultrasonic vibration spiral grinding method. Under the interactions of processing parameters and two-dimensional ultrasonic vibrations, the material removal mechanism becomes more complex, as well as the formation process of surface microtopography. Thus, a numerical simulation method of surface formation in ultrasonic vibration spiral grinding is proposed. Based on the geometric mapping relationship between grains and workpiece in ultrasonic vibration spiral grinding, the spiral cutting and motion model of grains is established. The surface formation model of ultrasonic vibration spiral grinding is provided afterward. Consequently, the three-dimensional surface microtopography of conventional grinding and ultrasonic vibration spiral grinding are simulated respectively. Then, the influence laws of ultrasonic vibrations on the surface formation process are comparatively analyzed. At last, the simulated surfaces are compared with the experimental grinding surfaces and their microstructures are found to be in the same manner, which proves the validity of this simulation method.

Key words: moving trajectory, simulation, surface formation mechanism, ultrasonic vibration spiral grinding

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