STUDYING THE EFFECT OF THE BORING BAR AMPLITUDE-FREQUENCY CHARACTERISTICS ON THE ACCURACY OF MACHINING A LARGE-SIZED PART

Авторы:

Toshov, J.B. (Соавтор)

Absadykov, B.N. (Соавтор)

Sherov, K.T. (Соавтор)

Karsakova, N.Z. (Соавтор)

Sikhimbayev, M.R. (Соавтор)

Издательство:

National Academy of Sciences of the Republic of Kazakhstan

Дата издания

11.04.2024

Область исследования

Инжиниринг и технологии

Тип исследования

Фундаментальное

Аннотация (краткое описание)

The development of advanced industries of the Republic of Kazakhstan (RK), such as chemical, oil, geological exploration industries, etc. dictates the need to develop promising and resource-saving technologies of manufacturing parts and components of machines and technological equipment. The uninterrupted operation of the above industries directly depends on the quality of manufacturing machines and technological equipment. The carried our studies show that there is a problemof machining large-sized parts when manufacturing and repairing machines and technological equipment. The most problematic issue is machining stepped holes of large diameters. To solve this problem, the design of a special boring bar was developed. It allows simultaneous machining stepped holes of large parts of technological equipment. This article is aimed at studying the effect of the boring bar amplitude-frequency characteristics on the accuracy of machining a large-sized part. It is known that the quality of machining depends largely on durability and rigidity of the boring bar design. In this regard, in this work, by using modeling in the Ansys Workbench computer program, the effect of amplitude-frequency characteristics on the boring bar rigidity and durability was determined. For the amplitude-frequency study, graphs of the radial displacement amplitude and the phase angle dependence on frequencies were obtained. It was established that the radial movement in the boring bar cutter at the optimal frequency v = 20,83 Hz is 9.9 µm and at the resonant frequency Vp = 1167, 1 Hz 67.2 µm, which is almost 7 times more. The durability of the boring bar was also calculated in the Harmonic Response module using the additional Fatigue Tool. As a result, it was revealed that the obtained radial movements are within the permissible limit of the tolerance field and the boring bar durability corresponds to the tabulated data. © 2024, National Academy of Sciences of the Republic of Kazakhstan. All rights reserved.

Соответствие целям устойчивого развития (ЦУР)

9. 

Индустриализация, инновации и инфраструктура

URI

https://www.scopus.com/record/display.url?eid=2-s2.0-85192981777&origin=resultslist

DOI

10.32014/2024.2518-170X.405

Тип публикаций

Статья

Дата подачи заявки

01.01.1970

Данный документ располагается в коллекциях

Международные публикации ученых SU

Scopus

Файлы документа

STUDYING THE EFFECT OF THE BORING BAR AMPLITUDE-FREQUENCY CHARACTERISTICS ON THE ACCURACY OF MACHINING A LARGE-SIZED PART.pdf