Abstract
In order to improve the turning accuracy of the lathe, a basalt fiber reinforced polymer concrete lathe bed was designed. In the light of theory, the turning error model of the lathe, the vibration of the lathe-workpiece system and the average amplitude calculation model of turning error are established. The Runge-Kutta method is used to calculate the vibration of the lathe-workpiece. The influence of the workpiece radius and turning parameters on the average amplitude of the turning error is studied. The results shows that average amplitude of the turning error is significantly influenced by feed rate, workpiece radius, back engagement and spindle speed from large to small.
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