Dispositivo y método para refrigeración y lubricación de herramientas en proceso de mecanizado

A device (100) for cooling and lubricating a tool during a chip removal machining process, which comprises: a first subsystem (110) for cryogenic cooling that comprises: a first entry (1) configured to introduce CO 2 in liquid state in a first conduit (a) of the device (100); a first exit (18) configured to supply CO 2 in liquid state from a second conduit (g) of the device (100); a third conduit (b) located between said first (a) and second conduit (g); and means (2, 7, 8, 4, 11, 13, 14, 15, 16, d, h, c) for preventing the formation of dry ice in said first, second and third conduits (a, g, b); and a second subsystem (120) for lubrication that comprises means (3, 5, 6, 9, 10, 12, 19, i, j, f, k, e, 20) for supplying micro-particles of a cutting oil in liquid state; wherein said first subsystem (110) and second subsystem (120) are independent from each other, and wherein said first subsystem (110) and second subsystem (120) are configured to act either simultaneously or either one alone (110, 120). Method of operation of the device.