Towards autonomous compilation of turning force databases: Utilization of on-machine measurement of machined parts

Several hitherto unrealized advantages would follow if each shop floor mach ine could compile its own machining database autonomously. This paper focus es on CNC turning to develop a shop floor friendly method for determining t he cutting force component normal to the machined surface as well as the lu mped static stiffness parameters of the machining set up solely from on-mac hine part inspection data gathered immediately after machining. It is shown that one can also estimate the shear and chip flow angles as well as the t angential and feed forces by combining this method with a suitable predicti ve model of the turning operation.