Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Libor Beránek"'
Autor:
Ondřej Stránský, Libor Beránek, Sunil Pathak, Jan Šmaus, Jaromír Kopeček, Jan Kaufman, Marek Böhm, Jan Brajer, Tomáš Mocek, František Holešovský
Publikováno v:
Virtual and Physical Prototyping, Vol 19, Iss 1 (2024)
ABSTRACTThe objective of this work is to study the effects of different coating materials (black paint, thermoplastic elastomers, black vinyl tape and uncoated surfaces) in Laser Shock Peening (LSP) processing of laser powder bed fusion (L-PBF) print
Externí odkaz:
https://doaj.org/article/fb11aefdf457461d93ef77ffe4e761ef
Autor:
Ondřej Stránský, Libor Beránek, Sunil Pathak, Jan Kaufman, Marek Böhm, Jaromír Kopeček, František Holešovský, Šimon Petrášek, Lucie Hlavůňková, Zbyněk Soukup
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 1683-1695 (2023)
Laser powder bed fusion (L-PBF) has emerged as one of the most promising technologies for producing complex geometries that are difficult to achieve with other methods. However, its widespread adoption is hindered by issues such as deleterious micros
Externí odkaz:
https://doaj.org/article/30ba287044f049cda0bc6350ebde6e70
Autor:
Sunil Pathak, Sanin Zulić, Jan Kaufman, Jaromír Kopeček, Ondřej Stránský, Marek Böhm, Jan Brajer, Libor Beránek, Ashish Shukla, Michal Ackermann, Filip Véle, Tomáš Mocek
Publikováno v:
Journal of Materials Research and Technology, Vol 19, Iss , Pp 4787-4792 (2022)
This paper investigates the post-processing of additively manufactured stainless steel (SS) 304 L samples through laser shock peening (LSP). Four samples, differently processed, (i) as-built (AB); (ii) as-built + annealed; (iii) as-built + polished;
Externí odkaz:
https://doaj.org/article/3ad65ff76af74463892d17dff1c684d8
Publikováno v:
Polymers, Vol 15, Iss 14, p 3065 (2023)
This study presents a comprehensive techno-economic analysis of PLA materials for fused filament fabrication (FFF) from eight European manufacturers. The comparison involved rigorous experimental assessments of the mechanical properties, dimensional
Externí odkaz:
https://doaj.org/article/3343752336324ab79cfcd847f6fed6b0
Publikováno v:
Metals, Vol 12, Iss 9, p 1497 (2022)
This paper evaluates the effect of stress-relieving heat treatment on the AlSi10Mg alloy prepared by additive manufacturing using the Laser Powder Bed Fusion (L-PBF) with print parameters: 370 W, 1400 m/s, and 50 μm. The as-built state and four diff
Externí odkaz:
https://doaj.org/article/41deddf99da544f0bb701941965a3a0f
Publikováno v:
Materials, Vol 15, Iss 16, p 5484 (2022)
This study has compared the performance of cryogenically processed EN 52 Silchrome valve steel with untreated material. After completing the standard heat treatment process, EN 52 steel material specimens are subjected to a deep cryogenic process wit
Externí odkaz:
https://doaj.org/article/562176fd475a47a59feec3488eceab00
Autor:
Zdeněk Pitrmuc, Jan Šimota, Libor Beránek, Petr Mikeš, Vladislav Andronov, Jiří Sommer, František Holešovský
Publikováno v:
Materials, Vol 15, Iss 2, p 551 (2022)
This paper aims at an in-depth and comprehensive analysis of mechanical and microstructural properties of AISI 316L austenitic stainless steel (W. Nr. 1.4404, CL20ES) produced by laser powder bed fusion (LPBF) additive manufacturing (AM) technology.
Externí odkaz:
https://doaj.org/article/4f033161ef70467ab8251e888358a3dd
Publikováno v:
Materials, Vol 14, Iss 16, p 4381 (2021)
Dry machining is one of the main ways to reduce the environmental burden of the machining process and reduce the negative effect of the cutting fluid and aerosols on operators. In addition, dry machining can reduce overall machining costs and, in the
Externí odkaz:
https://doaj.org/article/1920605c6fb94bbc88669fc701bd6e55
Publikováno v:
Materials, Vol 14, Iss 11, p 2852 (2021)
The purpose of this study was to find and optimize the process parameters of producing tool steel 1.2709 at a layer thickness of 100 μm by DMLS (Direct Metal Laser Sintering). HPDC (High Pressure Die Casting) tools are printed from this material. To
Externí odkaz:
https://doaj.org/article/0ec1b295af364ef8b57a285760c5ccf6
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 9, Iss 0, Pp 1-7 (2017)
The goal of this contribution was to describe parameters of surface integrity of two machined materials; austenite and duplex stainless steel. Residual stresses and presence of straininduced martensite were studied as a function of the side rake angl
Externí odkaz:
https://doaj.org/article/582ccf8d9d7442b3923f9207b888d6d3