The theoretical analysis and experimental results demonstrate that the motor current has some fluctuation in vari-speed cutting process, but it is almost no effect on normal operation of machine tool.
理论分析和试验结果表明，采用变速切削加工时，电机瞬时电流确有一定程度的波动，但不影响机床电机的正常使用；
OBJECTIVE To explore whether multi Vari Analysis (MVA) is a significant Analysis method on regulation of the entire process and its quality characteristics.
目的探讨多变异分析(MVA)在工作中各环节全过程质量特征及方法。
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