Is a cutting fluid with good extreme pressure equal to a high-quality cutting fluid?
September 03, 2022
Many people think that cutting fluid with good extreme pressure is a high-quality cutting fluid? Is this statement correct? In fact, this is a problem that is widely misunderstood by most lubricating oil practitioners. Some people always think that improving the quality or quality grade of cutting fluid is to continuously improve the extreme pressure and lubricity of the cutting fluid, and try to use the lubricity of the cutting fluid to improve the cutting fluid. Divide the quality grade of cutting fluid.
The performance requirements of cutting fluid are various, and the performance it should have is determined according to the needs of practical applications. Lubrication performance is only one of the many functions of cutting fluids. It is not that the higher the lubricity, the better. Excessive lubrication will often bring negative effects to the opposite effect. For example, chemical wear caused by excessive extreme pressure can greatly shorten the tool life and extreme pressure. The application of the lubricating agent will promote rust and cause serious corrosion. Due to the adsorption film (especially the chemical film) formed on the surface of the workpiece by the lubricity additive, the post-treatment and application of the workpiece (such as some metal parts used in the atomic energy industry and the electronics industry) cause trouble. Therefore, let customers pay attention to these when choosing cutting fluid, otherwise it will be counterproductive and bring bad consequences to users.
