Registration Number
0225U001606,
(0124U000678)
, R & D reports
Title
Development of the technological foundations of high-speed diamond grinding of difficult-to-machine materials for aircraft products using solid lubrication.
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Аналіз попереднього досвіду та напрацювань за науково-практичним напрямом прикладної науково-дослідної роботи, проектування і створення кострукторсько-технологіческих засобів для забезпечення безводних технологій високошвидкісного алмазного шліфування важкооброблюваних матеріалів, натурні експериментальні дослідження.
Head
Hasanov Mahomedimin I., Доктор технічних наук
Registration Date
03-02-2025
Organization
National Technical University "Kharkiv Polytechnic Institute"
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The goal of the project is to solve the complex problem of technological productivity, functional quality and environmental cleanliness of high-speed diamond grinding of hard-to-machine materials for aircraft products by developing, researching and offering to the industry innovative waterless processes using solid lubricants.
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Analysis of the activity of foreign companies and research centers shows that foreign specialists are conducting an intensive search for effective technological methods for transitioning to low- and water-free machining technologies. The project involved the development and research of water-free processes of the most progressive method of processing difficult-to-machine materials widely used in the aviation industry - diamond and diamond-spark grinding.
Based on the study of world experience, a number of solid lubricants (TL) were developed for research practice.
Representatives from 2 groups of difficult-to-machine materials widely used in the aviation industry were selected for experiments. From titanium alloys, the VT22 alloy was selected for experiments. The VT22 alloy is used for the manufacture of power parts and welded assemblies of aircraft airframes, power parts and chassis assemblies. The representative of the second group of difficult-to-machine materials was selected dispersion-hardening steel 10X11N23T3MR. Steel is used for the manufacture of parts that are operated at elevated temperatures in aggressive environments. These can be blades, turbine parts, disks, springs.
The universal grinding machine model 3D642E was modernized. To obtain high cutting speeds, a frequency converter was installed on the machine, which allows you to smoothly change the frequency of the electric current supplied to the main engine of the machine, thereby changing the engine speed.
A new protective casing was also designed and manufactured, on which the developed device for solid lubrication of the diamond-metal working tool surface of the grinding wheel was placed.
Preliminary studies of the operation of the equipment were conducted. At the highest frequency of electric current on the electric motor of 150 Hz, the wheel rotation speed was 10,000 rpm, which corresponds to a cutting speed of 80 m/s.
Product Description
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Ivanova Maryna S.
Harashchenko Olena S.
Harashchenko Yaroslav M.
Kamchatna-Stepanova Kateryna V.
Klochko Oleksandr O.
Kotliar Oleksii V.
Permiakov Oleksandr A.
Rudniev Oleksandr V.
Serhiienko Mykola Ye.
Stepanov Mykhailo S.
Titarenko Oksana V.
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2026-06-23
