Evaluation, Control, Monitoring, and Management of the Quality (Stability) of Synthetic Cutting Fluids in Mass-Production Machining

A retrospective analysis of cutting fluids in metalworking revealed that their development has proceeded in two directions: improving the physicochemical and technological properties of cutting fluids obtained from concentrates, and improving systems technologies for centralized control of cutting fluids, including centralized control. With the advancement of synthetic cutting fluids with high resistance to adverse external influences in the Russian Federation, some effects have been observed extending the service life of cutting fluids between replacements, but significantly less than expected. An analysis of the causes of the reduced cutting fluid service life revealed that this is due to the relatively infrequent correction of inevitable distributed losses of cutting fluid. These losses are caused by the state of the “cutting fluid - center cooling fan - process line” production system. This discovery led to an understanding of the potential for using estimates of distributed inevitable coolant losses to control and monitor the center cooling fan and the production system. To address this issue and confirm the scientific hypothesis regarding the feasibility of organizing control, monitoring, and management of the metalworking process occurring during the operation of cutting fluids based on an ongoing assessment of their distributed inevitable losses over time, proactive research was conducted. The purpose of the research was to confirm the above-mentioned hypothesis. The phenomenon of variation in inevitable distributed coolant losses in a central cooling system (CSF) complex was analyzed based on systematization of results and their transformation into time series during the period between coolant changes. Coolant variations were studied using a probabilisticdeterministic approach on a complex of 27 CSFs during the period between changes. For this purpose, digital data was generated for the rate of inevitable distributed coolant losses across all CSFs in the complex, with varying operating parameters and the fundamental possibility of developing an indicative method for coolant control and monitoring, etc.