Prediction and verification of models of burr formation

In order to fulfil the demands of high precision manufacturing and to ensure high process reliability, new methods for theoretical investigations are required. The paper considers the state-of-the-art in burr formation modelling and simulation at first from the theoretical point-of-view, starting with numerical models and coming up to analytical models. In the second main part, new trends will be pointed out – crack initiation implementation, the 'hydrostatic bowl' formulation, cutting-tool (geometry and dynamics) and friction influence and finally some aspects to consider size effects in process scaling to improve burr formation models.