Technology for Creating Products From Sheet Composite Material Using Topological Analysis of a 3d Model

Purpose. Using a three-dimensional model of a part, propose an optimal part unfolding using graph modeling and topological analysis methods; develop additional criteria for optimizing flat layouts to reduce the milling labor intensity and assembly accuracy; test the developed criteria on a practical example. Research methods. In the case under study, the research was conducted using graph modeling based on topological analysis of the product model. The research material was a 4 mm thick aluminum composite sheet with a 0.4 mm aluminum layer. Two variants of flat layouts were created based on the developed graphs. The final selection of the optimal flat layout variant was determined according to the developed optimality criteria. Results. The experience of selecting technological parameters for mechanical processing of aluminum composite sheet, which provide high processing productivity and product quality, has been generalized. It has been shown that the use of graph theory based on topological analysis of the model formalizes the process of creating variants of flat layouts. New optimality criteria are proposed, namely the total length of mechanical processing and the minimum number of parallel machining trajectories of bending grooves. Optimization should be carried out according to a priority criterion, using the rest as references for choosing between comparable variants. Scientific novelty. Criteria for optimising the flat layout when machining aluminium composites have been developed, such as: total cutting length to reduce the labour intensity of milling; minimum number of parallel trajectories for machining bending grooves. Practical value. The use of the developed criteria ensures maximum productivity of mechanical processing and maximum accuracy of assembly of products made of aluminium composites. The method of using graph theory based on the analysis of model topology can be the basis for automating the process of creating flat layouts.