Characterization of ultrasonic vibration and polishing force in sapphire ultrasonic vibration-assisted flexible polishing: Insights from in-situ monitoring systems

IF 3.8 2区物理与天体物理 Q1 ACOUSTICS Ultrasonics Pub Date : 2024-09-02 DOI:10.1016/j.ultras.2024.107431

Ying Geng , Guoyan Sun , Sheng Wang , Qingliang Zhao

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Abstract

Sapphire ultrasonic vibration-assisted flexible polishing (UVAFP) is a promising technique for comprehensively improving the surface integrity of machined parts. The technique was performed on an ultra-precision machine tool with the in-situ monitoring systems in this paper, which aims to provide a new perspective for understanding the material removal mechanisms in the sapphire UVAFP process. A Taguchi L₉ (4³) orthogonal experiment was conducted to investigate the effects of feed distance, spindle speed, ultrasonic vibration (UV), and polishing time on the surface finish and material removal in the process. In addition, the effect of a polyurethane ball tool is not trivial. A single-factor experiment was conducted for exploring it. Based on a laser displacement measurement system and an acoustic emission sensor system, the characteristics of time-dependent ultrasonic amplitude and ultrasonic frequency for the sapphire UVAFP system were analyzed, with the effectiveness of UV demonstrated. Based on a three-component force measurement system, the characteristics of normal force and its relationship with process parameters and tool deformation were analyzed, with macro- and micro-level examined. In conclusion, this paper presents the characterization of UV and polishing force in the sapphire UVAFP process, providing novel insights into understanding the material removal mechanisms of sapphire and even more manufacturing problems.

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蓝宝石超声振动辅助柔性抛光中超声振动和抛光力的表征：现场监测系统的启示

蓝宝石超声波振动辅助柔性抛光（UVAFP）是一种很有前途的技术，可全面提高加工零件的表面完整性。本文利用原位监测系统在超精密机床上进行了该技术的研究，旨在为理解蓝宝石 UVAFP 过程中的材料去除机理提供一个新的视角。通过 Taguchi L9 (43) 正交实验，研究了进给距离、主轴转速、超声波振动 (UV) 和抛光时间对加工过程中表面光洁度和材料去除率的影响。此外，聚氨酯球形刀具的影响也不小。为探究这一问题，我们进行了一次单因素实验。基于激光位移测量系统和声发射传感器系统，分析了蓝宝石 UVAFP 系统随时间变化的超声波振幅和超声波频率特性，证明了紫外线的有效性。基于三分量测力系统，分析了法向力的特性及其与工艺参数和刀具变形的关系，并进行了宏观和微观层面的研究。总之，本文介绍了蓝宝石 UVAFP 工艺中紫外线和抛光力的特性，为理解蓝宝石材料去除机制乃至更多制造问题提供了新的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ultrasonics 医学-核医学

CiteScore

7.60

自引率

19.00%

发文量

186

审稿时长

3.9 months

期刊介绍： Ultrasonics is the only internationally established journal which covers the entire field of ultrasound research and technology and all its many applications. Ultrasonics contains a variety of sections to keep readers fully informed and up-to-date on the whole spectrum of research and development throughout the world. Ultrasonics publishes papers of exceptional quality and of relevance to both academia and industry. Manuscripts in which ultrasonics is a central issue and not simply an incidental tool or minor issue, are welcomed. As well as top quality original research papers and review articles by world renowned experts, Ultrasonics also regularly features short communications, a calendar of forthcoming events and special issues dedicated to topical subjects.