Computer system for identification of tool wear model in hot forging

• Published in: MATEC web of conferences Vol. 80; p. 11006
• Main Authors: Wilkus, Marek, Rauch, Łukasz, Gronostajski, Zbigniew, Polak, Sławomir, Pietrzyk, Maciej
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Les Ulis EDP Sciences 01-01-2016
• Subjects: Abrasive wear; Adhesive wear; Complexity; Crack initiation; Crack propagation; Deformation mechanisms; Deformation wear; Fatigue cracks; Hot forging; Hybrid systems; Modelling; Multiscale analysis; Oxidation; Plastic deformation; Thermal fatigue; Tool wear; Wear mechanisms
• ISSN: 2261-236X; 2274-7214; 2261-236X
• DOI: 10.1051/matecconf/20168011006

The aim of the research was to create a methodology that will enable effective and reliable prediction of the tool wear. The idea of the hybrid model, which accounts for various mechanisms of tool material deterioration, is proposed in the paper. The mechanisms, which were considered, include abrasive wear, adhesive wear, thermal fatigue, mechanical fatigue, oxidation and plastic deformation. Individual models of various complexity were used for separate phenomena and strategy of combination of these models in one hybrid system was developed to account for the synergy of various mechanisms. The complex hybrid model was built on the basis of these individual models for various wear mechanisms. The individual models expanded from phenomenological ones for abrasive wear to multi-scale methods for modelling micro cracks initiation and propagation utilizing virtual representations of granular microstructures. The latter have been intensively developed recently and they form potentially a powerful tool that allows modelling of thermal and mechanical fatigue, accounting explicitly for the tool material microstructure.