Zobrazeno 1 - 10
of 38
pro vyhledávání: '"David Dobrocky"'
Autor:
Stepan Kolomy, Josef Sedlak, Jan Zouhar, Martin Slany, Marek Benc, David Dobrocky, Igor Barenyi, Jozef Majerik
Publikováno v:
Materials, Vol 16, Iss 3, p 977 (2023)
This paper deals with the study of high-strength M300 maraging steel produced using the selective laser melting method. Heat treatment consists of solution annealing and subsequent aging; the influence of the selected aging temperatures on the final
Externí odkaz:
https://doaj.org/article/41140bc9f35e402696918ca08b9ee9e8
Autor:
Zbynek Studeny, Michal Krbata, David Dobrocky, Maros Eckert, Robert Ciger, Marcel Kohutiar, Pavol Mikus
Publikováno v:
Materials, Vol 15, Iss 21, p 7562 (2022)
The present article examines special steels used for the production of injection screws in the plastic industry, with a glass fiber content of up to 30%. Experimental materials, M390 and M398, are classified as tool steels, which are produced by powd
Externí odkaz:
https://doaj.org/article/5c84cebb60004738b05b1b8f84d44b4d
Publikováno v:
Manufacturing Technology. 22:724-732
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f80d0b200d544c32fc27aebbf2bcd16d
https://doi.org/10.21062/mft.2022.085
https://doi.org/10.21062/mft.2022.085
Autor:
Lucie Hrbackova, Josef Sedlak, Felicita Chromjakova, Lucie Macurova, Eva Jurickova, David Dobrocky, Filip Skerik
Publikováno v:
Manufacturing Technology
The surface created by machining significantly affects the service life and functional reliability of the component. As part of this study, four different chip machining technologies were evaluated on the surface texture of the polymer material Ertac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffe1cf2986f57a3826e88eae7335073f
https://doi.org/10.21062/mft.2022.083
https://doi.org/10.21062/mft.2022.083
Publikováno v:
ECS Transactions. 105:319-327
The article studies the surface properties of PLA material prepared by additive technology, i.e. 3D printing. Samples with a square test area were printed by FFF technology. After 3D printing, the surface texture of the samples was evaluated in terms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2dace140e3d1f7f003a2574f69b8d71
https://doi.org/10.1149/10501.0319ecst
https://doi.org/10.1149/10501.0319ecst
Publikováno v:
ECS Transactions. 105:381-389
The article deals with the evaluation of the influence of conventional methods of machining on the surface quality of selected technical plastics. The thermoplastic polymer polyoximethylene (POM-C) Ertacetal C and polyamide (PA 6) Ertalon 6SA were se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc44f76062769e2577eff7098afcf973
https://doi.org/10.1149/10501.0381ecst
https://doi.org/10.1149/10501.0381ecst
Autor:
Jiri Prochazka, David Dobrocky, Zdenek Joska, Chien Nguyen, Jan Sedlacek, Josef Sedlak, Ales Polzer, Petra Sliwkova
Publikováno v:
ECS Transactions. 105:371-380
In the paper an effect of a diffusion technology such as gaseous ferritic nitrocarburizing on the surface properties of selected alloyed case-hardening steel was tested. The steel 18CrNiMo7-6, primarily predetermined for carburizing and frequently ut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::925a4937fd9d595d701757e366cdf6c6
https://doi.org/10.1149/10501.0371ecst
https://doi.org/10.1149/10501.0371ecst
Autor:
David Dobrocky, Zdenek Pokorny, Zdenek Joska, Josef Sedlak, Jan Zouhar, Jozef Majerik, Zbynek Studeny, Jiri Prochazka, Igor Barenyi
Publikováno v:
Coatings, MDPI. 2022, vol. 12, issue 10, 19 p.
Coatings; Volume 12; Issue 10; Pages: 1481
Coatings; Volume 12; Issue 10; Pages: 1481
The influence of plasma nitriding and gas nitriding processes on the change of surface roughness and dimensional accuracy of 42CrMo4 steel was investigated in this paper. Both processes almost always led to changes in the surface texture. After plasm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85430ea10887d5b11dcc20e4a6cb547a
https://hdl.handle.net/11012/208674
https://hdl.handle.net/11012/208674
Autor:
Jan Zouhar, Ales Polzer, Zdenek Joska, Josef Sedlak, Karel Kouřil, David Dobrocky, Martin Slany, Zdenek Pokorny, Oskar Zemcik, Zbynek Studeny
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 117:3859-3871
Bimetal pipes are highly stressed composite components that must resist corrosion in a chemically aggressive environment. They are made by welding resistive material to commonly available carbon steel pipes. The production of pipe bends with a superc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b598458a0a770828250093aa99b4693b
https://doi.org/10.1007/s00170-021-07749-1
https://doi.org/10.1007/s00170-021-07749-1
Publikováno v:
Manufacturing Technology. 21:398-404
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ede50d9a92717651a59680585e27380
https://doi.org/10.21062/mft.2021.039
https://doi.org/10.21062/mft.2021.039