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 rough-finish 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.

Cr12MoV Mold Steel Milling Vibration Characteristics and Experimental Research

“…In milling, a tool rotates and moves along the surface of the workpiece to remove excess material to obtain the desired shape and size. Advantages of milling over other machining techniques include [10][11][12][13][14]: First, high precision, milling can achieve highly accurate processing, capable of manufacturing precision parts and molds; second, controllability, the milling process is accurately controlled by CNC control, capable of replicating the same parts and ensuring consistency; third, widely applicable, milling is suitable for a wide range of materials, with a wide range of applications; fourth, high efficiency, milling Milling is usually able to remove a large amount of material in a relatively short period, improving manufacturing efficiency; five is adaptable, the selection of milling tools and parameters can be adjusted according to different workpieces and machining requirements, providing greater flexibility; six is automated, milling can be highly automated through CNC control, reducing human error and operator intervention.…”