Bryansk, Bryansk, Russian Federation
Bryansk, Bryansk, Russian Federation
Bryansk, Bryansk, Russian Federation
Bryansk, Bryansk, Russian Federation
VAC 2.5.5 Технология и оборудование механической и физико-технической обработки
UDK 621.7.015 Качество обработанной поверхности
BBK 345 Общая технология машиностроения. Обработка металлов
V stat'e izlozheny teoreticheskie osnovy i eksperimental'nyy podhod k obespecheniyu gigaciklovoy ustalosti detaley klassa valov pri nauchno obosnovannom podhode k proektirovaniyu operacionnyh tehnologicheskih processov finishnoy stadii obrabotki. Na osnove fundamental'nyh polozheniy teorii plasticheskoy deformacii metallov polucheny analiticheskie zavisimosti, svyazyvayuschie silovye, temperaturnye i skorostnye faktory lezviynyh i uprochnyayuschih metodov obrabotki na formirovanie parametrov sostoyaniya poverhnostnogo sloya, iz kotoryh naibol'shee vnimanie udeleno razmeru zerna metalla poverhnostnogo sloya. Dannyy parametr v znachitel'noy stepeni opredelyaet vozmozhnosti soprotivleniya processam ustalostnogo razrusheniya pri dislokacionnom mehanizme rosta ustalostnyh treschin. Teoreticheski obosnovana i eksperimental'no podtverzhdena vozmozhnost' tehnologicheskogo upravleniya koefficientom intensivnosti napryazheniy pri ciklicheskih nagruzheniyah za schet realizacii opredelennyh usloviy operacionnyh tehnologicheskih processov. V kachestve metodov obrabotki na finishnoy stadii tehnologicheskogo processa ispol'zovalis' lezviynye instrumenty iz chernoy oksidnoy keramiki i kompozitov, a takzhe iskusstvennye almazy dlya vyglazhivaniya. Dlya etih metodov obrabotki eksperimental'no ustanovleny vozmozhnosti upravleniya rezhimami kak tonkogo tocheniya, tak i almaznogo vyglazhivaniya razmerom zerna poverhnostnogo sloya detaley iz zakalennyh sredneuglerodistyh i legirovannyh staley. Polucheny eksperimental'nye zavisimosti predela vynoslivosti obrazcov iz ukazannyh materialov v zavisimosti ot razmera zerna poverhnostnogo sloya. Na osnove issledovaniy zavisimostey chisla ciklov do razrusheniya predstavlena real'naya kartina vozmozhnostey tehnologicheskogo obespecheniya gigaciklovoy ustalosti detaley klassa valov iz razlichnyh konstrukcionnyh materialov.
gigacycle fatigue, coefficient, intensity, stress, size, grain, strain rate, turning, diamond smoothing, endurance
1. Terentyev VF, Korableva SA. Fatigue of metals: monograph. Moscow: Nauka; 2015.
2. Herzberg RV. Deformation and fracture mechanics of structural materials: monograph. Moscow: Metallurgiya; 1989.
3. Kudryavtsev PI. Non-spreading fatigue cracks: monograph. Moscow: Mashinostroenie; 1982.
4. Unksov EP, Johnson W, Kolmogorov VL. Theory of plastic deformations of metals: monograph. Moscow: Mashinostroenie; 1983.
5. Reznikov AN. Thermophysics of processes of mechanical processing of materials: monograph. Moscow: Mashinostroenie; 1981.
6. Totay AV. Theory and practice of fatigue strength technological support in machinery. Science Intensive Technologies in Mechanical Engineering. 2018;10:38-42.
7. Bondarenko VP, Halepa AP. High-strength carbidochrome hard alloys. Instrumentalny Mir. 1998;3:40-44.
8. GOST 5639-82. Steels and alloys. Methods of detection and determination of grain size. Moscow: Izdatelstvo Standartov; 2003.
9. Torbilo VM. Diamond smoothing: monograph. Moscow: Mashinostroenie; 1972.
