Improvement of tribotechnological properties of oil-based cutting fluids by adding dry lubricants

Abstract

Having taken an oil component of cutting fluids used when machining difficult-to-machine materials, authors have searched for an additive which would have improved both tribotechnological properties and the cooling effect. Tribotechnological characteristics of widely used friction modifiers, such as graphite, molybdenum disulfide and serpentine, are analyzed. It has been show that the use of montmorillonite, a mineral that is widespread in nature, as an additive improves tribotechnological characteristics and scuffing load capacity of oil-based cutting fluids in general.