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首页> 外文期刊>International Journal of Machine Tools & Manufacture: Design, research and application >A theoretical and experimental study of surface generation under spindle vibration in ultra-precision raster milling
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A theoretical and experimental study of surface generation under spindle vibration in ultra-precision raster milling

机译：超精密光栅铣削主轴振动下表面生成的理论和实验研究

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摘要

In ultra-precision raster milling (UPRM), the impulse spindle vibration induced by the impulse-like cutting forces is intrinsic and special mechanism majorly influencing surface topography. It is fundamentally distinctive with the step spindle vibration induced by the step-like cutting forces in turning. However, no work has been conducted to study surface generation under the impulse spindle vibration in UPRM in depth. Consequently, this paper theoretically and experimentally elaborates that in UPRM, (i) the impulse spindle vibration includes the axial, radial and coupled-tilting spindle vibration with damping; (ii) the excitation frequency of the impulse-like cutting forces, i.e. spindle speed, determines the spindle vibration characteristics, i.e. synchronous or asynchronous spindle vibration; (iii) the coupled-tilting spindle vibration is a predominant factor influencing surface generation; and (iv) the irregular spindle-vibration waves induced by the impulse spindle vibration produce one of the irregular, lattice-like and stripe patterns or their hybrids at a milled surface.
机译：在超精密光栅铣削（UPRM）中，由类似脉冲的切削力引起的脉冲主轴振动是内在的，并且是主要影响表面形貌的特殊机制。从根本上说，车削时阶梯状切削力引起的步进主轴振动是独特的。但是，尚未进行深入研究UPRM中脉冲主轴振动下的表面生成的工作。因此，本文从理论上和实验上阐述了在UPRM中，（i）脉冲主轴振动包括轴向，径向和倾斜耦合耦合主轴振动; （ii）脉冲状切削力的激发频率，即主轴转速，决定了主轴的振动特性，即同步或异步主轴振动; （iii）倾斜主轴耦合振动是影响表面生成的主要因素; （iv）由脉冲主轴振动引起的不规则的主轴振动波在铣削表面上产生不规则的，格子状和条纹图案之一或它们的混合体。

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