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Investigation on Direction Dependency of Tool-Workpiece Compliance of Machine Tool

机译：工具工具工具工件方向依赖性调查

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The direction dependency of tool-workpiece compliance of machine tool was investigated in three dimensions. The tool-workpiece compliance is defined as the frequency response of the relative displacement between the tool and the workpiece to the cutting force. The tool-workpiece compliance of a vertical type machining center was measured. The direction dependency of the compliance magnitude was discussed using the polar plot. The compliance in the Z (vertical) direction was smaller than that in the XY (horizontal) directions. The maximum value of the compliance in the X direction was almost twice as large as those in the Y and Z directions. The influence of the frequency on the direction dependency was also discussed. The direction dependency in the XY plane was small in the frequency range higher than 250 Hz. This can be explained by the symmetry of the spindle about the X and Y directions because the tool-workpiece relative displacement was dominated by the tool displacement in the high frequency range.
机译：三维研究了机床工具工件依从性的方向依赖性。工具工件顺应性被定义为工具与切割力的工具和工件之间相对位移的频率响应。测量了垂直式加工中心的工具工件符合性。使用极性图讨论了合规幅度的方向依赖性。 Z（垂直）方向上的顺应性小于XY（水平）方向上的符合性。 X方向符合性的最大值几乎是Y和Z方向上的两倍。还讨论了频率对方向依赖性的影响。 XY平面的方向依赖性在高于250Hz的频率范围内小。这可以通过围绕x和y方向的主轴的对称来解释，因为工具 - 工件相对位移由高频范围内的工具位移主导。

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