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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >An application of eddy current damping effect on single point diamond turning of titanium alloys
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An application of eddy current damping effect on single point diamond turning of titanium alloys

机译：涡流阻尼效应对钛合金单点金刚石转动的应用

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Titanium alloys Ti6Al4V (TC4) have been popularly applied in many industries. They have superior material properties including an excellent strength-to-weight ratio and corrosion resistance. However, they are regarded as difficult to cut materials; serious tool wear, a high level of cutting vibration and low surface integrity are always involved in machining processes especially in ultra-precision machining (UPM). In this paper, a novel hybrid machining technology using an eddy current damping effect is firstly introduced in UPM to suppress machining vibration and improve the machining performance of titanium alloys. A magnetic field was superimposed on samples during single point diamond turning (SPDT) by exposing the samples in between two permanent magnets. When the titanium alloys were rotated within a magnetic field in the SPDT, an eddy current was generated through a stationary magnetic field inside the titanium alloys. An eddy current generated its own magnetic field with the opposite direction of the external magnetic field leading a repulsive force, compensating for the machining vibration induced by the turning process. The experimental results showed a remarkable improvement in cutting force variation, a significant reduction in adhesive tool wear and an extreme long chip formation in comparison to normal SPDT of titanium alloys, suggesting the enhancement of the machinability of titanium alloys using an eddy current damping effect. An eddy current damping effect was firstly introduced in the area of UPM to deliver the results of outstanding machining performance.
机译：钛合金Ti6Al4V（TC4）已被广泛应用于许多行业。它们具有优异的材料性能，包括优异的强度重量比和耐腐蚀性。但是，他们被认为是难以切割的材料;严重的工具磨损，高水平的切削振动和低表面完整性始终涉及尤其是超精密加工（UPM）的加工工艺。本文首先在uPM中引入了一种新的混合加工技术，以抑制加工振动并提高钛合金的加工性能。通过在两个永磁体之间暴露在单点金刚石转动（SPDT）期间叠加在样品上的磁场。当钛合金在SPDT中的磁场内旋转时，通过钛合金内的固定磁场产生涡流。涡流产生其自身的磁场，其具有外部磁场的相反方向引起排斥力，补偿由转动过程引起的加工振动。实验结果表明，与钛合金的正常SPDT相比，切割力变化的显着提高，粘合剂刀具磨损和极端长芯片形成，表明使用涡流阻尼效果提高钛合金的加工性。首先在UPM面积中引入了涡流阻尼效果，以提供出色的加工性能的结果。

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