MODELLING FUNCTIONAL COMPOSITION OF AN AUTOMATED SYSTEM FOR SELECTING MACHINING METHOD AND CUTTING TOOL

The aim of the study is to develop a functional model of an automated system for selecting a machining method and cutting tool. This system is necessary to improve the quality and speed of developing technological processes for ma-chining parts and reducing production costs while maintaining high product quality. The objective of the study is to conduct functional modelling at the initial stage of developing an automated system to determine the hierarchical structure of the developed automated system and to identify internal relationships. The study uses the methodology of structural analysis, which allows considering the system at different abstraction levels. Within the framework of the structural analysis, the authors apply the IDEF0 functional modelling technology. The novelty of the work lies in bas-ing the functional model on the allowance classification, which allows establishing the relationship between the pa-rameters of the allowance, machining methods and the cutting tool. In developing the model, the authors determine the main modules of the automated system, integration points with the enterprise’s other automated control systems, input and output data. The results of the study can be applied in developing automated systems for technological preparation of production. Further development of the work entails designing implementation algorithms for core functions and establishing databases for allowances, machining methods, and cutting tools. Conclusion states that the constructed functional model in IDEF0 notation allows identifying controlling influences and mechanisms for imple-menting the process of automatic choosing of machining methods and cutting tools. The paper displays interdepend-encies between the processes at one level, determines data flows and logic for executing the system processes.