Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Tomáš, Vopát"'
Publikováno v:
Machines, Vol 12, Iss 4, p 251 (2024)
The purpose of the experimental results evaluated in this paper is to verify the viability of using a prototype drag finishing machine for the modification of machined workpieces. The workpieces used in the experiments had a cylindrical shape and wer
Externí odkaz:
https://doaj.org/article/d6afcc6b3eb54d9aa0d3980c80cd6a4a
Autor:
Tomáš Vopát, Marcel Kuruc, Boris Pätoprstý, Marek Vozár, František Jurina, Barbora Bočáková, Jozef Peterka, Augustín Görög, Róbert Straka
Publikováno v:
Machines, Vol 12, Iss 1, p 68 (2024)
The turning of small-diameter deep holes is usually critical when the process of machining is unstable and the use of a special boring bar is often necessary. This paper is focused on the influence of cutting speed with a combination of cutting condi
Externí odkaz:
https://doaj.org/article/5b08cc08b819418ebc2ce89b4b185617
Autor:
Peter, Pokorný, Boris, Pätoprstý, Tomáš, Vopát, Jozef, Peterka, Marek, Vozár, Vladimír, Šimna
Publikováno v:
In Materials Today: Proceedings 2020 22 Part 2:212-218
Publikováno v:
In Materials Today: Proceedings 2020 22 Part 2:205-211
Publikováno v:
Micromachines, Vol 13, Iss 10, p 1562 (2022)
This paper is focused on the issue of preparing the cutting edge microgeometry of cutting inserts made of cubic boron nitride (CBN). The aim of this research was to investigate the possibilities of rotary ultrasonic machining (RUM) for preparing asym
Externí odkaz:
https://doaj.org/article/aba0ac7f49ba47319dcf7ee19f1e03c7
Autor:
Marcel Kuruc, Tomáš Vopát, Jozef Peterka, Martin Necpal, Vladimír Šimna, Ján Milde, František Jurina
Publikováno v:
Materials, Vol 15, Iss 2, p 585 (2022)
The paper deals with the issue of cutting zone and chip compression. The aim was to analyse the microstructure transverse section of the cutting zone on a metallographic cut, due to determined values of chip compression and plastic deformation, which
Externí odkaz:
https://doaj.org/article/1bcd6e90879d4379abc559679259b9c3
Autor:
Jozef Peterka, Wallyson Thomas De Silva, Róbert Straka, Tomáš Vopát, Jakub Hrbál, Michaela Kritikos
Publikováno v:
Research Papers Faculty of Materials Science and Technology Slovak University of Technology. 30:21-29
Internal turning process is a very important and widely used process for enlarging and finishing holes. Especially for the components that work with external members, this operation needs to assure surface and geometric quality. In that case, the cor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::030bfe8557a24a85589c5ceaef7c8866
https://doi.org/10.2478/rput-2022-0003
https://doi.org/10.2478/rput-2022-0003
Autor:
Vitalii Kolesnyk, Jozef Peterka, Marcel Kuruc, Vladimír Šimna, Jana Moravčíková, Tomáš Vopát, Dmytro Lisovenko
Publikováno v:
Materials, Vol 13, Iss 14, p 3232 (2020)
The drilling of holes in CFRP/Ti (Carbon Fiber-Reinforced Plastic/Titanium alloy) alloy stacks is one of the frequently used mechanical operations during the manufacturing of fastening assemblies in temporary civil aircraft. A combination of inhomoge
Externí odkaz:
https://doaj.org/article/f8eee317824d43c6a22f7a3862f4a6e4
Publikováno v:
Micromachines, Vol 11, Iss 2, p 166 (2020)
Nanocomposite AlCrSiN hard coatings were deposited on the cemented carbide substrates with a negative substrate bias voltage within the range of −80 to −120 V using the cathodic arc evaporation system. The effect of variation in the bias voltage
Externí odkaz:
https://doaj.org/article/cc24e3906e9c44399331257928403397
Publikováno v:
In Procedia Engineering 2014 69:1038-1047