A study on the temperature of cutting fluid in the micro-cutting of commercially pure titanium

Abstract The sustainable machining is a delicate issue because it does not depend only on the environment aspects. A simple solution would be to remove the use of cutting fluids, however, in the machining of difficult-to-cut materials, the use of cutting fluid can be strongly recommended. In these materials, the high temperature during the cut can cause damages that compromise the component efficiency, likes cracks, microstructure, and others. In recent years, the micro-cutting has been employed to obtain more detailed components and/or great surface quality, regardless of dimensions. In this work, the orthogonal micro-cutting of commercially pure titanium was investigated, employing the dry condition and the use of cutting fluid at different temperature, room temperature and the cooled. To know the cutting fluids effects, forces, friction, specific cutting energy, chip compression, chip deformation, and shear plane angle was compared. These outcomes indicated that, under the test conditions, the use of cutting fluid, principally when cooled, had a negative effect on micro-cutting performance.