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Power and stability limits in milling

机译:铣削的功率和稳定性极限

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The metal removal rate (MRR) in milling is typically limited by the dynamics of the tool-spindle combination or by the power. If the tool is stiff, the power is limiting, and the spindle stalls before chattering. If the tool is flexible, there is a spindle speed range where chatter is limiting. Many tools have some spindle speeds where chatter is limiting and others where power is limiting. This paper presents a new "power lobe" diagram which is independent of the workpiece material. Combined with the power curve for the spindle, this "stable power" diagram defines the achievable MRR for the entire machine dynamics.
机译:铣削中的金属去除率(MRR)通常受刀具主轴组合的动力或功率的限制。如果工具较硬,则功率会受到限制,并且主轴会在振颤之前停转。如果该工具是灵活的,则主轴转速范围将受到颤振的限制。许多工具的主轴转速有些受到颤动的限制,有些则受到了功率的限制。本文提出了一个新的“功率波瓣”图,该图与工件材料无关。结合主轴的功率曲线,此“稳定功率”图定义了整个机床动力学可实现的MRR。

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