Method and device for cooling the machine zone using an ionized gaseous cutting fluid

PCT No. PCT/RU93/00110 Sec. 371 Date May 25, 1994 Sec. 102(e) Date May 25, 1994 PCT Filed May 17, 1993 PCT Pub. No. WO94/07631 PCT Pub. Date Apr. 14, 1994The method and device are used for cooling the machining zone of a machine tool. According to a method for cooling the machining zone a gaseous cutting to a method for cooling the machining zone a gaseous cutting fluid that has previously been treated with in the field of a corona discharge initiated in an ionizer is fed to the machining zone at a rate not below the cutting speed, a controlled stabilized electric current being used for initiating a corona discharge, the intensity of the electric current is changed in accordance with a change in the rate of flow of the gaseous cutting fluid. A device for carrying the method into effect comprises an ionizer (1) having a housing (7) provided with an outlet nozzle (8) and communicating, through a piping (9), with a source (3) of the gaseous cutting fluid, a corona-discharge electrode (2) accommodated in the housing (1), and a power source (4) electrically connected to the corona-discharge electrode (2) is also provided with a regulator (5) connected in the gaseous cutting fluid feed piping (9) and with a controlled stabilizer (6) of the output electric current intensity connected to the supply circuit of the corona-discharge electrode (2).