Prohlížení Publikační činnost ČVUT dle autora "Kolář P."
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Calibration Method for In-Process Identification of Tangential Specific Cutting Force in Milling
Autor: Janota M.; Kolář P.; Falta J.; Kozlok T.
(MDPI AG, 2022)The cutting forces that occur during machining cause static and dynamic deformations of the machine–tool–workpiece system. In general, the cutting force is spatial. However, knowledge of the tangential component of the ... -
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 ... -
EMO 2019: O strojích a datech
Autor: Kolář P.; Petráček P.; Švéda J.; Falta J.; Červenka J.; Fojtů P.; Mareš M.; Hornych J.; Sova J.; Janota M.; Koubek J.; Sulitka M.; Šimůnek A.; Vavruška P.; Stejskal M.; Brajer J.; Mašek P.
(MM Publishing, 2019)EMO Hannover – veletrh, kde se tisíce a tisíce návštěvníků z celého světa mohou setkat s tím nejlepším a nejnovějším, co se v poslední době v průmyslovém světě událo. MM Průmyslové spektrum pravidelně přináší z této události ... -
Estimation of Machine Tool Accuracy Based on Monte Carlo Simulation Using Movement Axes Geometric Errors Model
Autor: Valášek A.; Smolík J.; Kolář P.
(MM Science Journal, 2023)Accuracy is one of the most important feature of a machine tool. Being able to estimate the overall accuracy of a machine tool represented by the total volumetric error can be a huge advantage in the design process. This ... -
Framework for milling process monitoring
Autor: Švéda J.; Kolář P.; Rytíř M.; Fojtů P.; Fiala Š.; Chládek Š.; Kozlok T.; Machálka M.
(MM Science Journal, 2022)Modern machining systems use horizontal and vertical data integration for the automatic monitoring and quality control of the machining operations. There are currently available some comprehensive papers focused on high-level ... -
Frictional Force Modeling of a Machine Tool Feed Drive Telescopic Cover
Autor: Ferkl J.; Novotný L.; Fiala Š.; Kolář P.; Rytíř M.
(MM Science Journal, 2021)Telescopic covers are components which can have a potentially large impact on machine tool feed drive capabilities. Generally speaking, frictional force modelling is a well-established field of interest in which many ... -
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 ... -
Indirect drill condition monitoring based on machine tool control system data
Autor: Kolář P.; Burian D.; Fojtů P.; Mašek P.; Fiala Š.; Chládek Š.; Petráček P.; Švéda J.; Rytíř M.
(MM Science Journal, 2022)Automatic process monitoring, including tool wear monitoring, is a key aspect of improving the energy efficiency and cost of the machining process. The tool flank wear continuously increases during drilling operations. The ... -
Influence of Composite Spindle Ram on Machine Tool Dynamic Stiffness
Autor: Kulíšek V.; Kolář P.; Smolík J.; Růžička M.; Janota M.; Machálka M.
(MM Science Journal, 2022)Demands for improving machine tool productivity and accuracy can be addressed using alternative material structures with the potential to reduce the mass of moving bodies and decrease machine tool dynamic compliance. A ... -
Inteligentní podtlaková úchopná hlavice manipulačního robota
Autor: Jančaříková E.; Kolář P.; Novák O.
(Faculty of Mechanical Engineering, 2021)Flexibilní průmyslová automatizace je v dnešní době založena zejména na průmyslových robotech. Podtlakové úchopné hlavice jsou jednou z možností pro manipulaci objektů. Při jejich navrhování se konstruktér vždy musí ... -
Method for Safe Experimental Testing of Machine Tool Usable Spindle Power
Autor: Kolář P.; Janota M.; Švéda J.; Kozlok T.
(MM Science Journal, 2021)The regenerative chatter during milling is a consequence of the machine tool dynamic compliance and the specific setting of the cutting process. The basic request on the machine structure is to enable a stable cut with ... -
MILLING TOOLS FOR CUTTING OF FIBER-REINFORCED PLASTIC
Autor: Kolář P.; Mašek P.; Zeman P.
(Ed. Inst. of the Wroclaw Board of Scientific Technical Societies Federation NOT, 2014)Composites with thermoplastic matrix are used in a wide range of applications. Their production and application volume grows every year. The need for precision machining of a near-net-shape workpiece is a topical subject, ... -
Modeling of Passive Forces of Machine Tool Covers
Autor: Kolář P.; Hudec J.; Sulitka M.
(The Japan Society of Mechanical Engineers, 2010)The passive forces acting against the drive force are phenomena that influence dynamical properties and precision of linear axes equipped with feed drives. Covers are one of important sources of passive forces in machine ... -
On Cutting Force Coefficient Model with Respect to Tool Geometry and Tool Wear
Autor: Kolář P.; Fojtů P.; Schmitz T.
(Elsevier Science Publishers B.V., 2015)Cutting force models are important for machining processes simulations. This paper presents measurement of cutting forces during C45 (1.0503) carbon steel machining using a coated carbide tool. Various cutting edge geometries ... -
On passive damping in machine tool hybrid structural parts
Autor: Kulíšek V.; Kolář P.; Vrba P.; Smolík J.; Janota M.; Růžička M.; Machálka M.
(Springer, 2021)Hybrid materials combining steel or cast iron with fibre or particle composites have a good potential for lightweight machine tool structural design with high damping ratio. These materials are analyzed in the paper with ... -
Operational method for identification of specific cutting force during milling
Autor: Janota M.; Kolář P.; Sulitka M.
(MM Science Journal, 2019)Specific cutting force is a key parameter that is important for estimating cutting forces that occur during machining. This information is important for various applications. The most important application is estimation ... -
Optimization of five-axis finish milling using a virtualmachine tool
Autor: Matyska V.; Kolář P.; Sulitka M.; Fojtů P.
(MM Science Journal, 2019)The five axis finish milling process is a complex process. The request surface quality and accuracy should be produced within as short time as is possible. This three main process characteristics - quality, accuracy and ... -
Průmysl 4.0 v oboru výrobních strojů
Autor: Kolář P.; Smolík J.
(MM Publishing, 2017)Článek prezentuje výsledky spolupráce firem a výzkumných institucí na téma technických řešení v oblasti Průmyslu 4.0.