Influence factors of surface topography in micro-side milling

Surface topography is one of the most important factors which affects the equipment reliability and life. In order to study the various influence factors of surface topography in micro-side milling, a surface topography model was established which took into account of the machine tool system’s dynamic characteristic. Dynamic characteristic functions was obtained by Receptance Coupling method, and then combined with milling force model to calculate dynamic deflection of the cutter. A new surface topography model was proposed in which cutter deflection was introduced into cutting edge trajectory equations in micro-side milling. An orthogonal experiment was designed in which spindle speed, feed rate, radial depth of cut, and milling mode were chosen as the main influence factors. Then the influence on surface topography in micro-side milling was analyzed by experiment results and simulation model. The analysis results showed that the most important factors on surface topography in micro-side milling are spindle speed, feed rate, radial depth of cut, and milling methods.