Підвищення ефективності використання енергії удару при статико-імпульсному зміцненні поверхневим пластичним деформуванням
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Файли
Дата
2018
Автори
Косіюк, М.М.
Костюк, С.А.
Kosiyuk, M.M.
Kostyuk, S.A.
Назва журналу
Номер ISSN
Назва тому
Видавець
Хмельницький національний університиет
Анотація
В статті розглянуто питання підвищення ефективності використання енергії ударного навантаження.
Проведено огляд останніх досліджень і публікацій та встановлено перспективні напрямки підвищення
ефективності використання енергії удару. Запропоновано нову модель ударної системи з статичним
навантаженням бойка та інструмента. Розроблено методику розрахунку енергосилових параметрів ударної
системи та отримано математичні залежності. Одержано математичну залежність для розрахунку
оптимальної енергії удару в залежності від радіуса деформуючого тіла. Запропоновано схему зміцнення
біполярним ударом. Проведено комп’ютерне моделювання процесу статико-імпульсного поверхневого зміцнення.
The problem of increasing the efficiency use shock load energy at static-pulsed surface-plastic strengthening are considered. The review of recent researches and publications was carried out and promising directions for increasing the efficiency use energy of blow were established. The influence of the impact system parameters on the shape and amplitude of the impact pulse is analyzed. The recommended range of correlations of the geometric parameters of the elements of the impact system is established. A new model of impact system with a static load of hammer and tool is offered. The method of calculating the energy-power parameters of proposed impact system is developed and mathematical dependences are obtained. To reaffirmation the efficiency of the proposed scheme, experimental research were carried out on the influence of the static load of hammer and tool on the change of micro hardness surface layer. In purpose to increase the productivity of the process machining and the energy use coefficient, a bipolar impact strengthening scheme is proposed, which is characterized in that during the processing of the part simultaneously receives two opposite deformation waves, whose energy is maximally used for deformation of the surface layer of the part and is not absorbed by a massive anvil, the absence of which reduces the metal capacity of the device design. The mathematical dependence of the calculation of impact energy on the use of spherical deforming bodies of different radii is obtained. Research were carried out of the stress-strain state of samples, which was strengthened by the bipolar impact scheme in the Abaqus software system, was obtained and contour voltage distribution graphs were obtained with reinforced rectangular and round-section samples.
The problem of increasing the efficiency use shock load energy at static-pulsed surface-plastic strengthening are considered. The review of recent researches and publications was carried out and promising directions for increasing the efficiency use energy of blow were established. The influence of the impact system parameters on the shape and amplitude of the impact pulse is analyzed. The recommended range of correlations of the geometric parameters of the elements of the impact system is established. A new model of impact system with a static load of hammer and tool is offered. The method of calculating the energy-power parameters of proposed impact system is developed and mathematical dependences are obtained. To reaffirmation the efficiency of the proposed scheme, experimental research were carried out on the influence of the static load of hammer and tool on the change of micro hardness surface layer. In purpose to increase the productivity of the process machining and the energy use coefficient, a bipolar impact strengthening scheme is proposed, which is characterized in that during the processing of the part simultaneously receives two opposite deformation waves, whose energy is maximally used for deformation of the surface layer of the part and is not absorbed by a massive anvil, the absence of which reduces the metal capacity of the device design. The mathematical dependence of the calculation of impact energy on the use of spherical deforming bodies of different radii is obtained. Research were carried out of the stress-strain state of samples, which was strengthened by the bipolar impact scheme in the Abaqus software system, was obtained and contour voltage distribution graphs were obtained with reinforced rectangular and round-section samples.
Опис
Ключові слова
пластичне деформування, метод, енергія, параметр, зміцнення, plastic deformation, method, energy, parameter, strengthening
Бібліографічний опис
Косіюк, М.М. Підвищення ефективності використання енергії удару при статикоімпульсному зміцненні поверхневим пластичним деформуванням [Текст] / М. М. Косіюк, С. А. Костюк // Вісник Хмельницького національного університету. Технічні науки. – 2018. – № 4. – С. 48-55.