椭圆振动车削微观特性仿真研究

Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence Pub Date : 2019-09-20 DOI:10.1145/3366194.3366195

Dongsheng Guo, Minliang Zhang

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引用次数: 1

摘要

通过建立有限元模型，研究了高强度铝合金材料Al7050-T7451的椭圆振动车削(EVT)和常规车削(CT)工艺。分析了EVT加工过程中切削区等效应力分布特征。进一步研究了椭圆振动车削过程中刀具前刀面的剪切角、切屑形貌和温度分布等微观切削特性，并与普通车削过程进行了比较。仿真结果表明，椭圆振动车削过程中的应力分布处于动态变化过程。与常规切削相比，EVT技术可以增加剪切角，且EVT工艺形成的切屑更薄，弯曲程度更大。因此，EVT技术在延长刀具使用寿命、提高塑料材料的切削性能方面具有重要的应用价值。

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Simulation Research on Microscopic Characteristics of Elliptical Vibration Turning

This paper presented the elliptical vibration turning (EVT) and conventional turning (CT) process of high-strength aluminum alloy material Al7050-T7451 by establishing the finite element models. The characteristics of equivalent stress distribution were analyzed in cutting area during EVT process. Furthermore, the microscopic cutting characteristics of elliptical vibration turning such as shear angle, chip morphology and temperature distribution of the tool rake face were further studied and compared with the ordinary turning process. The simulation results showed that the stress distribution was in a dynamic change process during elliptical vibration turning. Compared with conventional cutting, EVT technology can increase the shear angle, and the chip formed in the EVT process was thinner and had larger bending degree. Therefore, EVT technology has important application value in prolonging the service life of tools and improving the cutting performance of plastic materials.

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来源期刊

Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence

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