Dynamic properties of an air bearing drive system for manufacturing of twist-free surfaces by start-stop turning.

Substitution of grinding by hard turning in order to achieve twist-free surfaces promises significant economic and environmental advantages. The modifications in feed kinematics needed to manufacture such twist-free surfaces by a special start-stop turning process are very demanding in terms of dynamic performance of the machine tool. An approach consists in the integration of an additional highly dynamic drive system. The dynamic properties of an air bearing drive system regarding the demands for start-stop turning are analysed in detail. Furthermore, the ability for manufacturing of twist-free surfaces by start-stop turning is proven. [ABSTRACT FROM AUTHOR]