Tool Life Prediction of Cemented Carbide Tools During Milling of Compacted Graphite Iron

Sammanfattning

In the field of mechanical engineering, the optimization of machining processes, such as milling, is a critical factor for industrial efficiency and product quality. To this end, accurate tool life models allow for the identification of machining parameters that minimize wear and extend tool life, leading to significant improvements in process efficiency, which can lead to lowered costs, higher product quality, and more sustainable manufacturing processes. Additionally, the use of newer materials, such as compacted graphite iron (CGI), a cast iron with superior mechanical properties, opens new possibilities for the manufacturing industry. This thesis therefore investigates the possibility of using the Colding tool model as a tool in predicting the tool life of cemented carbide cutting tools during the milling of compacted graphite iron (CGI). The methodology involves a series of controlled milling experiments, observing tool wear over time and the application of the Colding model to predict tool life under these conditions. The results of the study confirm that the Colding model of tool life prediction can be successfully adapted to the unique geometries found in milling, and that it can be used to predict tool life during the machining of compacted graphite iron. The findings of this research also provide valuable insights into the behaviour of cemented carbide tools in the milling of compacted graphite iron, highlighting the importance of understanding the specific cutting process, and selecting appropriate machining parameters and tool materials.