Effects of the Tool Bending on the Cutting Force in Ball End Milling
2019
In this paper, the influence of the tool bending during a ball end milling on the cutting force magnitude is investigated. A thermomechanical model of the cutting force using the cutter workpiece engagement region (CWE) method to determine the actual cutting geometry is developed. The tool bending was considered in calculating the equivalent radius of each discretized element of the tool. The rotational center shifts according to the bending direction. A decrease in the cutting force and a good agreement between the modeled and measured forces is observed.
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