A5012929881- Engineering Technology and Methodologies
- Advanced machining processes and optimization
- Surface Roughness and Optical Measurements
- Surface Treatment and Coatings
- Advanced Surface Polishing Techniques
- Mining and Gasification Technologies
- Manufacturing Process and Optimization
- Environmental and Industrial Safety
- Material Science and Thermodynamics
- Engineering and Environmental Studies
- Engineering Diagnostics and Reliability
- Advanced Power Generation Technologies
- Metallurgical Processes and Thermodynamics
- Combustion and Detonation Processes
- Polymer Science and Applications
- Adhesion, Friction, and Surface Interactions
- Minerals Flotation and Separation Techniques
Zhytomyr Polytechnic State University
2017-2025
Technische Universität Dresden
2022-2023
V. Bakul Institute for Superhard Materials
2020
Today, micro-milling of NiTi alloys is used to manufacture precision mechanisms, instrumentation, space technology, micro-electro-mechanical systems, biomedical devices, and implants. It becoming increasingly widespread. Micro-milling the process manufacturing high-precision small parts using microtools, it characterized by more difficult chip formation conditions higher specific cutting forces than conventional milling. These adverse effects are greatly amplified when machining...
Робота присвячена дослідженню перспектив застосування мікрофрезерного текстурування, як способу модифікації змочуваності поверхонь сплавів Ni-Ti. Описано основні явища змочування та вплив топології поверхні на її характеристики змочування. Обговорюються обмеження відомих математичних моделей прогнозування крайового кута щодо до поверхні, текстурованої мікрофрезеруванням. Визначено переваги мікрофрезерування, порівняно з іншими технологічними методами, для текстурування метою впливу їх...
A mathematical model of loading the nose-free cutting edges each insert face mill with a spiral-stepped scheme was created. It established that size cut elements depends on feed magnitude, design parameters and position inserts contact arc. Variable factors simulation included clearance angle slope angles cutter assemblies. This made it possible to determine chip thickness width cut, depth maximum value main edge area at an arbitrary Simulation in SolidWorks Motion environment has confirmed...
A method of fractal analysis is applied to describe the relief surface area, which formed at face milling plates different values workpiece feed. Microphotographs samples' served as input data for calculating parameters microrelief area. Here we discuss most favorable conditions obtaining photographic images samples.The implementation was achieved in accordance with rough partition by standard procedure. Data on area real samples, composed base set measure analysis, were calculated...
The paper deals with the problem of determining power characteristics face milling process by computer modelling in DEFORM 3D environment.The influence rake shape round mill inserts on contact area chips surface, conditions chip removal, dynamic loads both during entry into workpiece and after cutting are investigated.The efficient use cylindrical mills designs proved, as these results decrease surface improvement removal conditions.It reduction tool force load, at time entrance to...
Abstract The multifractal analysis (MFA) of the spatial microform area formed on surface steel C35 and aluminum alloy AA2024 at face milling was implemented. input information for MFA micro-images machined workpiece surface. Multifractal (MF) spectra their main parameters are calculated samples various cutting conditions. Renyi’s numbers fractal ordering were chosen as most informative MF describing structure. It is shown that functions system correspond to canonical forms. Quantitative...
The article is devoted to the designs improvement of face mills with round inserts on basis a systems approach. increasing cutting efficiency provided by improving their in following aspects: tool life, accuracy and productivity, quality machined parts surface. Analysis operating conditions milling cutters carried out element (body, shank, location, etc.), these components are considered as one system. technological system (machine, holder, workpiece, tool) presented supersystem, which under...
На прикладi мультифрактального аналiзу (МФА) зображень поверхонь наноплiвок, що синтезувалися золь-гель технологiєю в системi ZnО–SiO2, обговорюються особливостi застосування цього методу при отриманнi кiлькiсних характеристик поверхнi. Вхiдною iнформацiєю для реалiзацiї пiдходу до опису стану були Second electron microscopy (SEM) зображення поверхнi зразкiв пiсля їх синтезу заданих умовах. Чисельними розрахунками узагальнених статистичних сум площi та об’ємiв просторових наноформ показано...
Manufacturing parts with a specific surface microrelief, which often determines their functional properties, is essential in various industry sectors. The practicality of studying the state microrelief after mechanical processing methods critical importance. It crucial to develop mathematical approaches for calculating quantitative characteristics relief, matter significant practical interest. This paper aims identify, discuss, and generalize main features implementing multifractal analysis...
Abstract This study represents the first application of multifractal analysis to characterize spatial microforms’ volumes resulting from face milling on flat surfaces, emphasizing its novelty. Photographs samples C35 steel and AA22024 aluminum alloy, subjected various cutting conditions during milling, were utilized apply approach for describing machined surface microrelief. Multifractal spectra their key parameters computed samples’ surfaces generated at feed rates depths. It is...
Introduction. Explosive technologies are widely used in the extraction industries, mechanical engineering for welding, hardening, etc. However, use of solid explosives is limited, above all, by safety requirements. Therefore, a safer and more convenient source energy, gas detonation, attracting much attention. Pressures, temperatures, velocities detonation waves or shock gases close to them terms intensity, as well pulse nature influence these factors determine high potential their technical...
Introduction. Explosive technologies are widely used in the extraction industries, mechanical engineering for welding, hardening, etc. However, use of solid explosives is limited, above all, by safety requirements. Therefore, a safer and more convenient source energy, gas detonation, attracting much attention. Pressures, temperatures, velocities detonation waves or shock gases close to them terms intensity, as well pulse nature influence these factors determine high potential their technical...
The feasibility of using face milling for the final formation parts surface layer is confirmed by a large number scientific works. At same time, there are significant advantages technological processes mills oblique cutting, equipped with superhard materials, spiral-stepped arrangement cutting inserts. This work devoted to study influence inclination angle mill edge on forces when processing workpiece flat made gray cast iron and carbon tool steel Deform-3D program. in range from 0 -45º...
The main reasons for the failure of machine parts are both breakdowns and wear. Parts that have failed very diverse classified according to various characteristics: functional purpose, materials, workpieces types, weight size, geometric features other wear conditions. Machine subject types (mechanical, thermomechanical, fatigue, corrosion, erosion, etc.). Wearing effects cause formation defects, operating conditions determine dominant which typical certain parts: changes in surfaces size...