Prohlížení Publikační činnost ČVUT dle autora "Zeman P."
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Analysis of cutting parameters in point machining of parts with complex shape
Autor: Stejskal M.; Vavruška P.; Zeman P.; Rybín J.
(ČVUT v Praze, fakulta strojní, 2018)This paper presents developed SW module in the postprocessor, which is designed to backward analysis of CAM milling toolpath. The module is designed to analyze multi-axis finishing machining of complex shape parts with ... -
An analytical formulation of ZOA-based machining stability for complex tool geometries: application to 5-axis ball-end milling
Autor: Falta J.; Sulitka M.; Zeman P.
(Springer, 2022)The paper describes a computationally convenient analytical formulation of the stability of the cutting process with respect to self-excited vibrations in the case of five-axis milling based on the commonly used zero-order ... -
Aplikace laserových technologií v automobilovém průmyslu
Autor: Zeman P.
(Infocube, 2014) -
Application of laser shock processing
Autor: Brajer J.; Mádl J.; Pitrmuc Z.; Švábek R.; Zeman P.
(Univerzita J. E. Purkyně, 2015)Laser Shock Processing (LSP), or strengthening the material surface by laser shock wave is very modern and progressive technique, which allows a significant increase in fatigue life of cyclically loaded parts. The compressive ... -
Automated feed rate optimization with consideration of angular velocity according to workpiece shape
Autor: Vavruška P.; Pešice M.; Zeman P.; Kozlok T.
(Elsevier B.V., 2022)Selecting the proper cutting conditions for milling parts is one of the most important tasks in setting up manufacturing to achieve minimum machining times and to ensure the desired tool life. This is particularly important ... -
A Comprehensive Methodology for Testing Hard Layers of Cutting Tool Properties in Orthogonal Turning
Autor: Mašek P.; Zeman P.; Kožmín P.; Syrovátka J.
(MM Science Journal, 2022)Thin hard layers deposited on cutting tools known as 'coatings' serve as a protective barrier against abrasion and adhesion wear, while also protecting against thermal and chemical processes that deteriorate the cutting ... -
Cutting Force Modelling in Orthogonal Turning of C/PEEK and C/PA12
Autor: Kovalčík J.; Mašek P.; Zeman P.
(MM Science Journal, 2022)This article focuses on cutting force modelling in the orthogonal turning of two commonly used types of fibre-reinforced plastic materials. Uncoated cutting tool inserts made of sintered carbide and with different rake ... -
Cutting temperature measurement in turning of thermoplastic composites using a tool-work thermocouple
Autor: Mašek P.; Zeman P.; Kolář P.
(Springer, 2021)Turning of carbon fibre reinforced thermoplastic pipes is used for production of fluid ducts for the aerospace and oil industries. Although thermoplastics are chemically stable, the matrix could be affected by the heat ... -
DEVELOPMENT OF A CUTTING TOOL FOR COMPOSITES WITH THERMOPLASTIC MATRIX
Autor: Mašek P.; Zeman P.; Kolář P.
(MM Publishing, 2013)Fibre reinforced thermoplastic composites (FRTC) are becoming an increasingly important material for a wide range of applications. Thus, the demand for high performance tools for machining of this material is increasing. ... -
Edge trimming of C/PPS plate
Autor: Mašek P.; Zeman P.; Kolář P.; Holešovský F.
(Springer, 2019)A main requirement in the field of polymer composites milling with fibre reinforcement is to machine with high quality in one operation (without delamination or burrs). That requires precise selection of cutting tool ... -
Effects of high-pressure cooling in the flank and rake faces of WC tool on the tool wear mechanism and process conditions in turning of alloy 718
Autor: Tamil Alagan N.; Hoier P.; Zeman P.; Klement U.; Beno T.; Wretland A.
(Elsevier Science, 2019)The exceptional properties of Heat Resistant Super Alloys (HRSA) justify the search for advanced technologies that can improve the capability of machining these materials. One such advanced technology is the application ... -
Enhanced tribological performance and nanostructuring speed on AlTiN by beamshaping technology
Autor: Primus T.; Hauschwitz P.; Vítů T.; Bičišťová R.; Zeman P.; Cimrman M.; Brajer J.; Mocek T.; Smrž M.
(Maney Publishing, 2022)For the first time, a dynamic beamshaping technology has been utilized for the efficient production of periodic nanostructures on top of AlTiN coating to enable dry machining without costly and environmentally hazardous ... -
Experimental Investigation of a Method for Selective and Precise Laser De-Coating
Autor: Primus T.; Hlavinka J.; Zeman P.; Kožmín P.; Čermák A.
(Springer Nature, 2022)Coatings are used in many industrial applications as a protective barrier, improving component properties such as friction, wear resistance, and thermal resistivity. When components become worn, any coatings must be ... -
Experimental investigation of CMT discontinuous wire arc additive manufacturing of Inconel 625
Autor: Votruba V.; Diviš I.; Pilsová L.; Zeman P.; Beránek L.; Horváth J.; Smolík J.
(Springer, 2022)Additive manufacturing (AM) is a progressive technology which holds promise for manufacturing of heat resistant super alloys. One of the most productive methods is wire arc additive manufacturing (WAAM). In this article, ... -
An Experimental Investigation of Controlled Changes in Wettability of Laser-Treated Surfaces after Various Post Treatment Methods
Autor: Primus T.; Zeman P.; Brajer J.; Kožmín P.; Syrovátka Š.
(MDPI, 2021)In this paper, a quick nanosecond laser micro structuring process was employed to change the surface wettability of Ti6Al4V alloy. The same laser structuring method was used throughout, but with varying input fluence. The ... -
High-pressure flank cooling and chip morphology in turning Alloy 718
Autor: Alagan N.T.; Zeman P.; Mára V.; Beno T.; Wretland A.
(Elsevier B.V., 2021)The use of cutting fluids is commonly considered a necessity while machining Heat Resistant Super Alloys (HRSA). Specifically, cutting fluids applied under high-pressure, which for many decades have been the solution for ... -
Hlavní trendy EMO Hannover 2017 očima výzkumníků
Autor: Kolář P.; Burian D.; Hornych J.; Novotný L.; Horejš O.; Mareš M.; Brajer J.; Zeman P.; Stach E.; Malý J.; Chládek Š.; Kopačka J.; Sova J.; Vrba P.; Šimůnek A.; Koubek J.; Sulitka M.; Vyroubal J.
(MM Publishing, 2017)Hannoverský veletrh EMO je právem považován za výkladní skříň toho nejlepšího, co inovační týmy světových leaderů i jejich následovníků navrhli a v prototypech či již sériově nabízejí. Sektor výrobních strojů bývá na špici ... -
Identifying the lead angle limit to achieve required surface roughness in ball-end milling
Autor: Pešice M.; Vavruška P.; Falta J.; Zeman P.; Malý J.
(Springer, 2022)When milling generally shaped surfaces with a ball-end milling tool, machined surface roughness and accuracy as well as machining productivity are often monitored. Improving one of these parameters often causes a decrease ... -
Increasing Tool Life and Machining Performance by Dynamic Spindle Speed Control along Toolpaths for Milling Complex Shape Parts
Autor: Vavruška P.; Bartoš F.; Stejskal M.; Pešice M.; Zeman P.; Heinrich P.
(Elsevier, 2022)This paper focuses on dynamic spindle speed and feed rate control to increase tool life and reduce machining time during milling of complex shaped parts. Machining of complex shaped surfaces is one of the most demanding ... -
Investigation of micro-textured cutting tools used for face turning of alloy 718 with high-pressure cooling
Autor: Tamil Alagan N.; Zeman P.; Hoier P.; Beno T.; Klement U.
(Elsevier, 2019)There is an increasing demand to improve the service life of cutting tools during machining of heat resistant superalloys (HRSA). Various studies showed that textured cutting tools improved the tribological properties and ...