employee
Bryansk, Bryansk, Russian Federation
employee
Bryansk, Bryansk, Russian Federation
employee
Bryansk, Bryansk, Russian Federation
employee
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
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