| Autor: |
Uminsky, S., Yakimov, O., Bovnegra, L., Klimenko, N., Balan, V. |
| Předmět: |
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| Zdroj: |
Proceedings of Odessa Polytechnic University / Odes'kyi Politechnichnyi Universytet Pratsi; 2018, Vol. 56 Issue 3, p19-29, 11p |
| Abstrakt: |
To prevent the appearance of burns when grinding, lubricating and cooling technology means and intermittent circles are used. The vast majority of lubricating and cooling technology means represents a real threat to human health and the environment, and the use of intermittent circles is hampered by non-human side-effects arising from their work. The purpose of the study is to reduce the non-human effects associated with the process of discontinuous grinding, and to reduce the harmful effects on human health when the desired quality of the surface to be treated is achieved. The theoretically proved and experimentally tested the possibility of providing the required quality for grinding operations by using intermittent circles and environmentally sound solid lubricants. In order to increase the stability of the grinding wheels and improve the quality of the surface layer of the workpieces, a solid impregnator with a good lubricating and cooling and anti-friction properties has been developed to allow lubrication to remain in the cutting zone. It has been experimentally established that when grinding on a impregnated circle, the power consumed for cutting is 30...40 % less than when grinding with a normal circle. It has been established that the extraction during the grinding process with the impregnated circle of hydrogen and nitrogen and their adsorption to the juvenile surfaces intensifies the process of hardening of the surface layers of the material to be processed and, as a consequence, reduces the energy intensity of the process of chip formation. The results of research can be implmented on the operations of flat grinding and sharpening of metal-cutting tools. Electronmicroscopic studies of the treated surfaces showed that when grinding with impregnated circles, the adhesion setting of the material to be processed with abrasive grains significantly decreases and, as a result, the cutting ability of the grinding wheel increases. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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