Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Jozef Peterka"'
Autor:
Jinyang Xu, Vitalii Kolesnyk, Changping Li, Bohdan Lysenko, Jozef Peterka, Munish Kumar Gupta
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 6614-6651 (2023)
CFRP/Ti stacks have attracted considerable attention over the past decades as a promising alternative to individual fibrous composites and metallic alloys due to their improved properties and enhanced structural functions. Mechanical drilling is a co
Externí odkaz:
https://doaj.org/article/ab4f8094f98741bc9c7146a053ea960e
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:
Jozef Peterka, Marcel Kuruc, Vitalii Kolesnyk, Ivan Dehtiarov, Jana Moravcikova, Tomas Vopat, Peter Pokorny, Frantisek Jurina, Vladimir Simna
Publikováno v:
Machines, Vol 11, Iss 10, p 946 (2023)
The work is new due to the type of process used—ultrasonic precision machining—to determine the possible effect of spindle heating (long-term machining) on the precision of the flat surface. It was carried out on a precise ultrasonic machining ma
Externí odkaz:
https://doaj.org/article/9c55c19ae57244509eba2e0c62003d22
Autor:
Oleksandr Yevdokymov, Vitalii Kolesnyk, Jozef Peterka, Tomas Vopat, Munish Kumar Gupta, Dmytro Lisovenko, Andrii Dovhopolov
Publikováno v:
Metals, Vol 13, Iss 8, p 1354 (2023)
Nickel superalloys occupy a reasonably broad niche in the industry. One of this group’s most common and well-known alloys is Inconel 718. Parts from Inconel 718 are used in aerospace, energy, automotive, and some other vital industries, which creat
Externí odkaz:
https://doaj.org/article/b3496c2788d94d0babf0a246264d4775
Autor:
Jozef Peterka, Frantisek Jurina, Marek Vozar, Boris Patoprsty, Tomas Vopat, Vladimir Simna, Pavol Bozek
Publikováno v:
Sensors, Vol 23, Iss 13, p 5794 (2023)
This paper presents a novel cutting fluid monitoring sensor system and a description of an algorithm framework to monitor the state of the cutting emulsion in the machine tool sump. One of the most frequently used coolants in metal machining is cutti
Externí odkaz:
https://doaj.org/article/2b8c9bdae9734260b2df810435140346
Publikováno v:
Designs, Vol 7, Iss 2, p 43 (2023)
The paper describes the design and implementation of a cutting fluid monitoring system, as well as the design and development of an algorithm to increase the life of the cutting fluid in the machine tool reservoir. Cutting fluids are the most common
Externí odkaz:
https://doaj.org/article/3dc3a325039f43fb8fd11d2dd974073a
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 7, Iss 2, p 61 (2023)
The roughness origin of machined surfaces is caused by the following physical causes: the copying of the shape and the roughness of the cutting part of the tool into the workpiece, the existence of vibration of the tool, and the existence of the buil
Externí odkaz:
https://doaj.org/article/a708b952aabb40e1bed1c377bd71f93b
Autor:
Vitalii Kolesnyk, Jozef Peterka, Oleksandr Alekseev, Anna Neshta, Jinyang Xu, Bohdan Lysenko, Martin Sahul, Jozef Martinovič, Jakub Hrbal
Publikováno v:
Materials, Vol 15, Iss 5, p 1940 (2022)
Drilling of Carbon Fiber-Reinforced Plastic/Titanium alloy (CFRP/Ti) stacks represents one of the most widely used machining methods for making holes to fasten assemblies in civil aircraft. However, poor machinability of CFRP/Ti stacks in combination
Externí odkaz:
https://doaj.org/article/992d96f7bbdd47f4962381c79da733ad
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:
Marcel Kuruc, Jozef Peterka
Publikováno v:
Machines, Vol 9, Iss 8, p 164 (2021)
The paper deals with the behavior of the rotary ultrasonic machining process at different cutting speeds of ceramic materials. This process is relatively new; therefore, there are gaps in information about its behavior at near-critical parameters. We
Externí odkaz:
https://doaj.org/article/9fbabda5a18b43ca9f5f049fea633f3f