Abstract
Computer aided design of the manufacturing technology for fasteners is presented in the paper. This work puts special emphasis on the tool wear analysis. The particular objectives of the work were twofold. The first objective wss selection of the tool wear model and identification of coefficients in this model on the basis of measurements of tool shapes in industrial processes. Measurements after various number of produced forgings were performed and coefficient in the tool wear model was identified using inverse approach. In the second part of the paper the idea of simulation of the manufacturing chain is adapted to the analysis of the tool wear. Simulations of various variants of manufacturing chains were performed and the alternative, which gives the longest tool life, was selected. Industrial trials were performed for the selected cycle and the efficiency of this cycle was evaluated.