IMPROVEMENT OF TURNING MATERIALS IN THE ENVIRONMENT CHILLED IONIZED AIR 

Kurnosov Nikolay Efimovich, doctor of technical sciences, professor, sub-department of transport machines, Penza State University,
E-mail: ttmo-pgu@mail.ru
Tarnopolskiy Alexander Vladimirovich, candidate of technical sciences, associate professor, sub-department of transport machines,
Penza State University, E-mail: taw48@bk.ru
Asoskov Alexander Sergeyevich, candidate of technical sciences, associate professor, sub-department of transport machines,
Penza State University, E-mail: asoskov_w@mail.ru 

621.941 

Background. The temperature in the cutting zone is a negative factor in turning. The increase of temperature in the cutting zone increases the roughness of the processed surface, the decrease of the resistance of the cutting edge of the tool, reduce performance
and increase cost for turning. The use of physically and chemically active ionized air as a lubricating-cooling technological means improves the performance of turning. The temperature in the cutting zone becomes a positive factor contributing to the high rate physical-chemical processes occurring in the cutting zone and is the basis of the action of ionized air. It is known that the obtaining of the ionized air and its supply to the cutting zone of the machine by the device in which successively installed pipe is Wound and a corona ionizer. Technically rational to the ionized air using balloelectric effect in the vortex flow of air, it uses only the energy of humidified compressed air under pressure up to 0.6 MPa. The purpose of this study was to determine the influence of ionized in a vortex flow of humidified air surface finish and durability of the blade of the tool under high temperatures in the cutting zone. These studies have not been previously.
Materials and methods. The study was performed in laboratory and production environments with the use of certified instruments
and measuring instruments. The research results are processed using software packages LGraph2, Mathcad 13 and other programs.
Results. The paper presents the conditions of the field studies, in which the dependences of the influence of pressure and humidity in
the eddy currents on the concentration of ions and the influence of ion concentrations on the roughness of machined by turning, the surface resistance of cutting tool and temperature in the cutting zone. The results of comparative studies of cutting processes when used as coolants of ionized air, and traditional methods of feeding coolants-water emulsion and processed without submission of lubricating-cooling technological means.
Conclusions. Ionized in a vortex flow of the humidified air is an alternative to liquid lubricant-cooling technological means. Its application improves the performance of the turning process and reduce its cost. 

temperature in the cutting zone, roughness of the processed surface, vitality blade of the tool, ionized air, concentration of ions