Modelling and experimental determination of the service life of carbide tools with TiAlCN coatings

Abstract

In the field of mechanical engineering, reducing the labour‑intensive processes associated with coating deposition is critical to minimising financial and time‑related losses; therefore, the prediction of tool life constitutes a highly relevant research objective. To address this challenge, a mathematical model has been developed to quantify the influence of key technological parameters on the cutting path achieved by carbide cutting tools with carbonitride coatings. The coatings were synthesised using the full factorial experiment (FFE) approach, enabling a systematic evaluation of parameter interactions. The derived model allows for accurate prediction of the cutting path and, consequently, the tool life, with a demonstrated prediction accuracy of 90 %. Notably, the model is versatile and can be applied across a broad range of technological parameters (U, ITi, IAl, n, p, IPINK) used in the synthesis of carbonitride coatings, thus providing a practical tool for process optimisation in machining operations. doi 10.54708/19926502_2026_30311388