3D elliptical vibration-assisted cutting (EVC) is a method for rapidly creating ultra-precision free-form surfaces with features at the micro-scale, which have a wide array of industrial applications. Displacement coupling and low stiffness limit the applications of current 3D EVC mechanisms in machining difficult to cut materials and precise micro-features. To overcome these limitations and improve overall performance, an innovative 3D EVC mechanism with a parallel layout with flexure hinges will be presented. The mechanism was specifically designed to be capable of generating decoupled output displacements in three directions and assuring high stiffness. An analytical model of the mechanism’s kinematics will be formulated to facilitate the prediction of the loci of the tooltip and design and realization of the prototype device. The vibration characteristics of the mechanism were verified through both finite element analysis and experimental modal analysis using swept sine test...

中文翻译：

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基于平行挠曲铰链的3D椭圆振动辅助切削机构的设计与实验研究

3D椭圆振动辅助切削（EVC）是一种快速创建具有微观尺度特征的超精密自由曲面的方法，具有广泛的工业应用。位移耦合和低刚度限制了当前3D EVC机构在难以切削材料和精确的微特征加工中的应用。为了克服这些限制并提高整体性能，将提出一种创新的3D EVC机制，该机制具有带有挠性铰链的平行布局。该机构经过专门设计，能够在三个方向上产生解耦的输出位移，并确保高刚度。将建立该机构运动学的分析模型，以方便工具提示的位点的预测以及原型设备的设计和实现。