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HSS end milling cutters with PVD coatings and their use in practice
Vondra, Jiří ; Slaný, Martin (referee) ; Jaroš, Aleš (advisor)
This diploma thesis deals with the durability of PVD coating in front groove milling. In the theoretical part there is the analysis of high-speed steels, a survey of milling and an overview of coating methods. The experimental part is focused on the power ratios during milling with a router cutter and its wear. From the experiment it is possible to conclude that nanocomposite coatings reduce cutting forces, but do not produce the most durable tool under the cutting conditions.
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On the production technology of a specific part
Kalina, Adam ; Slaný, Martin (referee) ; Píška, Miroslav (advisor)
This document describes the design of new production technology specific part in an engineering company. The specific part is manufactured on a machining center by milling method. To create model was used SolidWorks software and to create CNC program was used SolidCAM program. There is production process created with new and old technologies. There is a comparison of both technologies in conclusion.
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Wire Electrical Discharge Machining
Brázda, Radim ; Slaný, Martin (referee) ; Sámelová, Vendula (advisor)
This work deals with the technology of wire electrical discharge machining. The first chapter describes the basic principles and essence of electrical discharge machining. Then the work deals with the wire cutting in terms of wires, machines and cutting conditions and benefits of this technology. In the last chapter the work is focused on trends and news in wire electrical discharge machining and also describes the possibilities of this technology.
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Surface heat treatment after 3D FDM print
Břoušek, Lukáš ; Slaný, Martin (referee) ; Zemčík, Oskar (advisor)
The topic of diploma thesis are surface heat treatments after 3D print by method Fused Deposition Modeling. In the introduction is located recherche of the given issue. Further, we describe the construction and process of the 3D printer construction, on which will be printed samples for experiments in the next part of the thesis. The aim is to determine the behavior and changes of surface structures of heat-affected samples from different materials. Furthermore, the suitability of the used methods and the possibility of their use in practice.
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Construction and production of modeller CNC milling machine
Krejčí, Miloš ; Slaný, Martin (referee) ; Zemčík, Oskar (advisor)
The purpose of this bachelor thesis is to design and manufacture a modeller CNC milling machine. The work includes introduction of modeller CNC milling machines available on the market and their comparison. The thesis also contains custom design of modeller CNC milling machine, followed by prototype manufacturing and testing. The design includes calculation and experimental verification of stepper motor parameters, frame sizing, load simulation and selection of suitable control electronics. A prototype was designed to verify concept, manufacturing technologies and cost.
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Effect of size impact on surface integrity while reaming with modern reaming head MT3
Rybařík, Jaroslav ; Kouřil, Karel (referee) ; Slaný, Martin (advisor)
The aim of this thesis is to design, implement and evaluate an experiment that verifies the influence the size effect on selected parameters of the surface integrity. For the experiment were used highly productive reaming head MT3 made by HAM-FINAL. Evaluation of the surface integrity was done in terms of the characteristics of the surface roughness, geometric tolerances and changes in microstructure. Furthermore, the influence of the depth of chips evaluated for changes in the feed force, cutting torque and changes in specific cutting energy. The theoretical part deals with the description of the size effect, characteristic reaming, surface integrity, preparation of material and identification of highly productive MT3 reaming head.
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Contactless measurement of surface temperatures during milling
Kmenta, Michal ; Slaný, Martin (referee) ; Polzer, Aleš (advisor)
This Master's theses deals with the contactless measurement of surface temperatures and incorporates it among other methods of temperature measurement. For practical experiments were used infrared camera ThermaCAM SC 2000 from producer FLIR. The experiment was focused on the area of manufacturing technology – milling. Have been investigated effects of different cutting conditions on the surface temperature of the machined sample and the results are expressed mainly in the charts.
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The durability of cutting inserts during face milling
Spáčil, Radek ; Slaný, Martin (referee) ; Jaroš, Aleš (advisor)
The bachelor thesis deals with the wear of cutting tools in the form of cutting inserts during face milling. The thesis is divided into two parts. The first part is a form of search which describes milling technology and also includes progressive milling method HFC. The next chapter describes the types of using cutting materials with greater emphasis on sintered carbides. The third chapter deals with the basic methods of coating. The experimental part of bachelor thesis gives a description of used material, tool, machine, and the experimental progress. The aim of the experiment was to compare the durability and to compile the action of forces for cutting inserts. The experiment has shown that the cutting force increases as wear level increases.
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