Optimization method for rough-finish milling allowance based on depth control of milling affected layer

Abstract

The optimization of machining allowance has an important influence on the machining quality of workpieces. This paper determined an optimization method for rough-finish milling allowance based on depth control of milling affected layer. Firstly, the coupling influence of roughfinish milling cutting depth on milling affected layer depth is studied by experiment. Secondly, the influence rule of rough milling and finish milling on the affected layer depth is studied by experiment, and the prediction model of the milling affected layer depth based on the cutting depth of rough milling and finish milling is established, as well as the surface roughness prediction model of the finish milling cutting depth. Finally, the effectiveness of the optimization results was verified by experiments. The experimental results show the optimized machining parameters can increase the machining efficiency by 31.2%, and the milling affected layer is 91 μm, which indicates that the depth of milling affected layer is effectively controlled.

Study on The Stability and Experimental Study of Non-uniform Allowance Chattering of Thin-Walled Parts Based on ɛ Influence Factor

“…Zhang et al [15] established a margin planning scheme by local stiffness combined with finite element cutting force as a threshold value. Petracek et al [16] and Xin et al [17] used the relationship between depth of cut and rotational speed to optimize the distribution of machining allowances and to reduce chatter, where Petracek et al [16] designed the corresponding spindle speed optimization procedure.…”