首页|Optimal Cutting Parameters for Precision Machining Process
Optimal Cutting Parameters for Precision Machining Process
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NETL
NSTL
Trans Tech Publications Ltd
Semi-discretization method is applied to construct stability chart and performance contour in the parametric space for milling processes. The method creates a mapping of the system responses in a finite dimensional state space. Based on the discipline of that, the smaller the largest absolute value (μ_(max)) of the characteristic multipliers of the mapping is, the faster the system converges to zero, minimization of μ_(max) leads to optimal stable limit. The optimal limits are obtained by using stability chart and performance contours. Additional, a novel analytical method for selection of optimal depth of cut (axial depth of cut) is presented. An example of 2-DOF down-milling model is employed to demonstrate the method. It is shown that the spindle speeds corresponding to the optimal depths of cut locate the left side of the resonant spindle speeds, and the optimal cutting parameters pair (spindle speed and depth of cut) can be used to offer high finishing accuracy in precision machining.
NETL
NSTL
Trans Tech Publications Ltd
