Physical and Chemical Processes when Grinding Metals with Impregnated Abrasive Tools

Improving the efficiency of the grinding treatment process of machine parts and mechanisms provides for the choice of rational processing modes, characteristics of the abrasive tool and coolant, as well as the selection of modifying additives impregnated into the body of the circle. The work investigated the connec-tions between the chemical composition, the main physicochemical and working operational and technolog-ical properties of the lubricating cooling process fluid, which determine the effectiveness of its action in order to increase the processing efficiency and surface quality during grinding. The studies were carried out to identify the nature of physicochemical phenomena in contact between abrasive grain and metal using the “RSZ-2” device. The mechanism of influence of thermoelectric phenomena on the processes of interaction of bodies in the presence of lubricating cooling process fluid, during grinding has been established. The mechanism of the influence of thermoelectric phenomena on the processes of interaction of bodies in the presence of lubricating cooling process fluidduring grinding is revealed. It is shown that the grinding process can be considered as a continuous change in the energy of atomic and molecular interactions in a three-phase system of metal-lubricant-abrasive grain boundaries.

1. Mitrofanov A.P., Parsheva K.A. Issledovanie vliyaniya impregnirovaniya abrazivnogo instru-menta na sostoyanie rel'efa i himicheskij sostav poverhnostnogo sloya trudnoobrabatyvaemoj stali // Tekhnologiya metallov. — 2018, № 6, 23—27 (in Russian)

2. Bratchikov A.Ya. Sposob povysheniya kachestva poverhnosti detalej i rezhushchih svojstv shli-foval'nyh krugov // Metalloobrabotka. — 2014, № 2(80), 11—15 (in Russian)

3. Semenov N.N. Izbrannye trudy: v 4 t. — Moskva: Nauka. — 2005 (in Russian)

4. Slavin A.V., Brzhozovskij B.M. Povyshenie effek-tivnosti shlifovaniya putyom upravleniya fiziko-himicheskimi processami v kontakte “instrument — zagotovka” // Naukoyomkie tekhnologii v mashi-nostroenii. — 2016, № 5(59), 24—30 (in Russian)

5. Processy abrazivnoj obrabotki, abrazivnye in-strumenty i materialy //Sbornik statej Mezhdu-narodnoj nauchno-tekhnicheskoj konferencii. — 2003 (in Russian)

6. Salov P.M., Vyacheslavov D.A., Salova D.P. i dr. Povyshenie effektivnosti processa i kachestva obrabotannoj poverhnosti pri silovom shlifovanii torcom kruga // Vysokie tekhnologii v mashi-nostroenii: materialy Vserossijskoj nauchno-tekhni-cheskoj internet-konferencii, 22–25.10.2015 g. — Samara: SamGTU k-ta. — 2015, 28—29 (in Rus-sian)

7. Salov P.M., Salova D.P. Racional'noe ispol'zovanie rabochej poverhnosti abrazivnyh krugov. — Chebo-ksary: Cheboksarskij politekhnicheskij institut (fil-ial) MGOU. — 2010 (in Russian)

8. Zubarev Yu.M., Priemyshev A.V. [i dr.] Teoriya i praktika povysheniya effektivnosti shlifovaniya ma-terialov: uchebnoe posobie. — SPb.: Lan'. — 2010 (in Russian)

9. Nosova I.V. Aktivizaciya fiziko-himicheskogo vliyaniya sots na pokazateli shlifovaniya // V sbornike: Processy abrazivnoj obrabotki, abrazivnye instrumenty i materialy. Sbornik statej Mezhdu-narodnoj nauchno-tekhnicheskoj konferencii. Min-isterstvo obrazovaniya i nauki Rossijskoj Federacii, Volgogradskij gosudarstvennyj arhitekturno-stroitel'nyj universitet, Volzhskij institut stroitel'stva i tekhnologij (filial) Volgogradskogo gosudarstven-nogo arhitekturno-stroitel'nogo universiteta; pod redakciej Shumyacher V.M. — 2012, 107—110

10. Shumyacher V.M. Fiziko-himicheskie processy pri finishnoj abrazivnoj obrabotke: Monografiya. — Volgograd: VolgGASU. — 2004 (in Russian)