An approach for measurement uncertainty evaluation of cutting force in machining by turning

In this study it is shown an example of experimental measurement of cutting force during machining with turning and estimating of the associated parameter which describes the measurement uncertainty. It is proposed a tool for identification of the influencing contributors and it is developed a mathematical model for propagation of the measurement uncertainty including factors from the measuring system and factors from the cutting process itself. It can be concluded that main source of uncertainty is coming from the cutting process. Further recommendations are in direction of lowering these significant errors more than focusing on improvement of the force measuring system. After depicturing the errors in the form of table 2 our opinion is that this method is essential for researches of cutting force and without it results can not be considered as complete. Uncertainty parameter makes measurement result to have reliable interpretation