Development of a novel three degrees-of-freedom rotary vibration-assisted micropolishing system based on piezoelectric actuation

Gu, Yan and Chen, Xiuyuan and Lu, Faxiang and Lin, Jieqiong and Yi, Allen and Feng, Jie and Sun, Yang (2019) Development of a novel three degrees-of-freedom rotary vibration-assisted micropolishing system based on piezoelectric actuation. Micromachines, 10 (8). 502. ISSN 2072-666X (https://doi.org/10.3390/mi10080502)

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Abstract

The limited degrees of freedom (DOF) and movement form of the compliant vibration-assisted processing device are inherent constraints of the polishing technique. In this paper, a concept of a 3-DOF rotary vibration-assisted micropolishing system (3D RVMS) is proposed and demonstrated. The 3-DOF means the proposed vibration-assisted polishing device (VPD) is driven by three piezo-electric (PZT) actuators. Compared with the current vibration-assisted polishing technology which generates a trajectory with orthogonal actuators or parallel actuators, a novel 3-DOF piezoelectrically actuated VPD was designed to enable the workpiece to move along the rotational direction. Meanwhile, the proposed VPD can deliver large processing stoke in mrad scale and can be operated at a flexible non-resonant mode. A matrix-based compliance modeling method was adopted for calculating the compliance and amplification ratio of the VPD. Additionally, the dynamic and static properties of the developed VPD were verified using finite element analysis. Then, the VPD was manufactured and experimentally tested to investigate its practical performance. Finally, various polished surfaces which used silicon carbide (SiC) ceramic as workpiece material were uniformly generated by the high-performance 3D RVMS. Compared with a nonvibration polishing system, surface roughness was clearly improved by introducing rotary vibration-assisted processing. Both the analysis and experiments verified the effectiveness of the present 3D RVMS for micro-machining surfaces.

  • Item type:Article
    ID code:81381
    Dates:
    Date
    Event
    29 July 2019
    Published
    26 July 2019
    Accepted
    Notes:Gu, Y.; Chen, X.; Lu, F.; Lin, J.; Yi, A.; Feng, J.; Sun, Y. Development of a Novel Three Degrees-of-Freedom Rotary Vibration-Assisted Micropolishing System Based on Piezoelectric Actuation. Micromachines 2019, 10, 502. https://doi.org/10.3390/mi10080502
    Subjects:Science > Physics
    Technology > Manufactures
    Department:Faculty of Engineering > Design, Manufacture and Engineering Management
    Depositing user: Pure Administrator
    Date deposited:07 Jul 2022 08:32
    Last modified:09 Apr 2024 03:20
    URI:https://strathprints.strath.ac.uk/id/eprint/81381
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