Cutting tool run out considered cutting force estimation in micro milling processes
Applied Mechanics and Materials
Date of Presentation
This paper presents a method of estimating cutting forces of the tool by taking the tool’s run out into account during micro milling processes. The thickness of uncut chip is modelled based on the trochoidal trajectory synthesized from the rotational motion, the feed motion, and the run out of rotational micro tools. The strain gradient plasticity theory is then used in conjunction with the Johnson–Cook constitutive equation to calculate flow stresses, where the influence of the plough shear on the rake face and the elastic recovery on the flank face is considered. The calculated cutting forces using the proposed method for micro milling processes show a satisfactory agreement with existing experimental results.
Cutting tool run out considered cutting force estimation in micro milling processes.
Paper presented at Applied Mechanics and Materials.