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Data selection and optimisation of cutting conditions for progressive production technologies of drilling with a step drill
Barák, Vít ; Fiala, Zdeněk (referee) ; Píška, Miroslav (advisor)
The thesis contains theoretical analysis of drilling by twist drill focused on the step drill. The review includes description of the drill geometry, calculation of the basic parameters of drilling, including forces and process optimization. Following is manufacturing process and analysis of the monolithic step drill designed for the required hole parameters. The optimal cutting conditions are necessary to find for the correct function of the tool. The load values of the tool are accurately assessed using a piezoelectric dynamometer, thereby obtaining the overall progress of individual loads. The roughness of the workpiece is evaluated by the optical measuring device.
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Design of a combined tool for holes machining of the universal chuck
Kovář, Matouš ; Fiala, Zdeněk (referee) ; Jaroš, Aleš (advisor)
This master’s thesis focuses on the design of a combined tool for machining holes of a universal chuck. The thesis analyses the component and technologies used for the production of precision holes for pinions in the chuck body. Furthermore, the current production of precision holes is described, including the used machine, tools, cutting conditions and technological process with machine times. In the next part of the thesis, a proposal of more efficient production of precision holes is made accompanied by a design of a combined tool. The design includes its structural treatment, used cutting tool inserts and drill, the method of clamping, used material, the heat treatment, the determination of the cutting conditions and the development of a new technological procedure. The thesis concludes with a technological and economic evaluation, where the existing and the newly proposed technologies for the production of precision holes for pinions in the chuck body are compared.
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Design of production technology for a component of a rotary shape
Dvořák, Dominik ; Fiala, Zdeněk (referee) ; Kalivoda, Milan (advisor)
For the design of the interlocking shaft production technology, this component was first described and after defining the limiting conditions of production, three variants of its implementation were selected. The technologies used were characterized and subsequently the most economically efficient variant was chosen, which also met the specified criteria. A production process with a tool sheet was compiled for this variant. Furthermore, the NC code was created in the control system of the production machine, followed by its verification during the simulations. Two prototypes were made. The first of them was used to optimize the design of production technology, the second was produced after simulations to verify the correctness of the proposed solution. This was followed by a technical and economic evaluation, used to predict the production costs of the entire production volume and compare them with the estimate.
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Suggestion of technology for clutch component
Drápal, Jakub ; Fiala, Zdeněk (referee) ; Zemčík, Oskar (advisor)
The Bachelor work draft production of manufacturing machined component clutch of motorcycle Ducati. The work includes familiarization with the function of component, desvising the technological process for unit production and subsequent production on the CNC lathe. Technological preparation for production on the CNC machine will be imple-mented with using CAD / CAM software. In conclusion will be assessed technical economic evaluation of production this component.
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Vibration at turning
Procházka, Luděk ; Kolář, Ladislav (referee) ; Fiala, Zdeněk (advisor)
This thesis deals with vibration which occurs during the cutting process in turning. It describes vibration, types of vibration and its causes. It also provides a basic description of the turning technology. The main part of the thesis is a description of self-excited vibrations, an unwanted phenomena in the turning process, which needs to be eliminated or reduced. The experimental section of the thesis aims to measure natural frequencies of the machine-tool-workpiece system and to create a stability diagram for this process.
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Materials Used for Cutting Tools for Metal Machining
Tomek, Lukáš ; Fiala, Zdeněk (referee) ; Kalivoda, Milan (advisor)
This thesis deals with cutting materials used for the production of inserts and tools for ma-chining. The aim of this thesis is to describe the various materials used in machining, their basic characteristics, composition and production. The work also includes a description of profiles of leading world producers of cutting tools. On the example of the designed shaft is made application of turning tools needed for its machining and short description of its production with a graphic demonstration. The final part is devoted to the evaluation of the turning in terms of used resources depending on the cost,productiontime and subsequent recycling of end-of-life instruments.
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Machining on a CNC machine including automatic measurement
Kubín, David ; Fiala, Zdeněk (referee) ; Kalivoda, Milan (advisor)
The topic of the bachelor thesis is the analysis and integration of the measuring cycle into the machining process on a CNC machine. The topic is dealt with in two parts, theoretical and practical. The theoretical part briefly discusses the history of NC/CNC machines, including the basic control modes of NC/CNC machines and the structure of the NC programme. Furthermore, the control systems produced by renowned companies available on the Czech market are presented. Besides other facts, measuring cycles in control systems and their examples are also mentioned in this part. The practical part of the bachelor’s thesis is focused on the creation of a suitable illustrative component, the subsequent compilation of operational data and documents into the technological preparation of the production. The production of the component and its subsequent measurements are based on these data. The production process ends with the evalution of the information obtained.
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CNC machining of shaft from gearbox
Konvičný, Denis ; Fiala, Zdeněk (referee) ; Kalivoda, Milan (advisor)
The diploma thesis deals with the production of gearbox shaft components using a CNC machine tool, shaft programming in Tebis 4.0 R8 software, Sinumerik SinuTrain 7.5, and manufacturing accuracy checking using 3D scanning technology, which allows you to compare the CAD model and the scan of the manufactured part.
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Milling of the flat surfaces on the CNC Machines
Kolesa, Jan ; Fiala, Zdeněk (referee) ; Kalivoda, Milan (advisor)
The purpose of the bachelor thesis is a generaldescription of the milling of flatsurface of components on CNC machines. The introductory part of the thesis deals not only with the generaltheory, but also with a number of millingissues. The next part of the bachelor thesis containdifferentiationof millingtools and CNC machines. The last part of the thesis deals with particularproductionassortments and certainmanufacturers of machinetools operating in our market.
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