The Study on Applied Status Stability of Water-Based Cutting Fluids at Numerical Control Machining of Aviation Aluminum Alloy

When water-based cutting fluid is used in aviation aluminum alloy NC machining, soap precipitation and emulsification often occur due to its poor stability. It can cause the metal plate or equipment parts to scale or block the cutting fluid pipeline and filter system, which seriously affects the service life of the cutting fluid and the normal use of the equipment. At present, there is a lack of suitable evaluation standard for the stability of application state of water-based cutting fluid. In this paper, through the analysis of the state stability of four kinds of water-based cutting fluids, the state stability evaluation test is formulated. The hard water stability test and emulsion stability test are carried out for two kinds of semi synthetic cutting fluid and two kinds of fully synthetic cutting fluid. The test results show that this evaluation test can effectively evaluate the state stability performance of aviation aluminum alloy cutting fluid, and provide guidance for the optimization and management of cutting fluid in numerical control machining.