The paper presents an experimental research related to the chip formation mechanism, chip type and chip shape
dependant on the tool wear process in turning. The performed experimental investigations measured the influence of the
degree of tool wear on the morphology and microstructural alterations in a chip. In dependence to the tool wear degree, the
alterations were monitored in the chip structure and the character of vibrations originating after a certain degree of tool
wear, as well as chip segmentation type in the defined processing conditions. The conducted research presented in the paper
has the objective to contribute to better understanding of mechanisms, shape types and segmentation of chips formed in
dependence to the tool wear degree in turning.