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建立了再生切削颤振的衰减系数模型，采用频率扫描法，获得了稳定切削曲线．分析了任意切宽下及变速切削时的系统频率和衰减系数变化，揭示了变速切削的抑振机理，提出了变速切削有效性的判定准则，生成了变速切削时的切削稳定曲线，为变速范围的选择提供了依据
The damping coefficient model of regenerative cutting chatter is established. The frequency sweep method is used to obtain the stable cutting curve. The change of system frequency and attenuation coefficient under arbitrary cutting width and variable speed cutting are analyzed. The vibration suppression mechanism of variable speed cutting is revealed. The judgment criterion of variable speed cutting efficiency is put forward. The cutting stable curve of variable speed cutting is generated, The choice provided the basis