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On the advanced production technology of UHMWPE joint implant part
Urbancová, Kateřina ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
This bachelor’s thesis is dealing with the problematics of individual joint replacements. The thesis summarizes the modern materials used for making artificial joint replacements, but it concentrates mainly on the plastic femoro-tibial part of the implant, usually manufactured from ultra-high molecular weight polyethylene. This material is the best choice when manufacturing the articulating surface of the joint replacement at the moment. The thesis pays attention to the polyethylene surface treatment, as the quality of the surface affects the wear of the plastic, which is critical for the implant lifespan. The thesis also focuses on analysis of the coefficient of friction of UHMWPE in contact with the titanium femoral component. Another part of this thesis is also a wear analysis of used tibial inserts made of UHMWPE and the mechanisms of wear.
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A proposal of block production technology for an injection mold
Továrek, Marek ; Dvořáková, Jana (referee) ; Sliwková, Petra (advisor)
The aim of the bachelor's thesis was to search the selected issue, the choice of tool and machinery, design of block production technology, processing of the technological process and production drawing. The first part is a brief introduction to polymeric materials and their distribution. Technologies for plastics processing are also described here, especially with a focus on injection molding technology and the associated injection mold and injection molding machine. In the second part, tool and machinery equipment, selected block material and design of production technology are designed. Part of the thesis is also a production drawing and technological process.
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A proposal of production technology of a holder
Stará, Veronika ; Zemčík, Oskar (referee) ; Sliwková, Petra (advisor)
The bachelor's thesis deals with the analysis of the current production technology of the specified holder. The new design of the production process deals with the selection of the CNC milling center, the selection of suitable tools for machining, the selection of cutting conditions and determining the length of production of individual operations. The work includes an economic comparison of both variants of the production process.
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Design of an engraving LED laser
Kasík, Martin ; Sliwková, Petra (referee) ; Dvořáková, Jana (advisor)
This thesis is focused on the search of unconventional machining methods, especially on the technology of laser beam machining. It deals with the area of laser cutting and engraving and examines the influence of individual technological parameters on the given process. Furthermore, there is proposal of design of hobby LED engraving machine, its supporting structure, HW and other electronic components. The prototype of the device is physically assembled and its functionality is verified in the form of several engraving tests of raster and vector formats of graphic materials, and some several shape cuts are made also. The technical evaluation of the assembled equipment, evaluation of tests performed and cost calculation is part of the work too.
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A proposal of production technology of a specified component
Janíček, Adam ; Zouhar, Jan (referee) ; Sliwková, Petra (advisor)
This bachelor thesis fosus on machining the parts from worse workable material, exactly stainless steel 1.4404, when the machined component will be the axis of the three-way valve used in food industry. The introduction of my thesis contains of theoretical information about technologies used in components production, continues with an option of machines and tools suitable for fabrication of this component, following with practical part containing the production of manufacturing process, manual, calculation of cutting conditions, production of the component on CNC machines itself, and the last part is complex control of the fabricated component.
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Design of a hydraulic tester for determining the axle play of vehicles
Tůma, Vladimír ; Sliwková, Petra (referee) ; Sedlák, Josef (advisor)
The goal of this thesis is a design of a hydraulic tester for detection of the clearance of the truck front axle at the lines of technical inspection stations. The beginning of the thesis is dedicated to an introduction of the company, which is the first manufacturer of such device in the Czech Republic. The main content of the paper is the analysis of the current technological process of production from purchasing the material to the final assembly at the customer. In the last part of the thesis the technological innovation, which makes the current procedure more efficient as well as its financial assessment, is described.
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Application of modern technologies to increase the life of forming tools
Bambušek, Martin ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
The content of this thesis is to design and analyze possible ways of cooling hot forming tools and holders with use of modern and conventional technologies. From this analysis a least technologically and economically difficult solution with high efficiency of cooling effect is chosen and used on specific application. There are also described heat effects on degradation in the beginning of this thesis. Cutting edge of the tool made by the chosen technological solution is also analyzed during the experiment. In the conclusion of this thesis is an evaluation of achieved results.
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Innovation of production process of the shaft for an auxiliary power unit
Dubovský, Jakub ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
This thesis presents a proposal for a new technology for the production of a shaft component, which is located in the internal system of an auxiliary power unit designed for helicopters. In the first part, an evaluation of the component and the relation of its design to the functional requirements placed on the component in the device is carried out. This is followed by an analysis of the component material and process manufacturing influences. In particular, the heat treatment of the material and the nitriding process performed on the shaft. Following the assessment of the original state of production, options for a new production technology of the component are proposed using the capabilities of the new machinery in the company. After the evaluation of the proposed technological solutions, the selected variant of the production process is verified by a test production series, which declares the applicability of the proposed technology for deployment within the standard production mode. The paper concludes with a technical and economic overview.
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A proposal of production technology of a hinge part
Urbánek, Vojtěch ; Zemčík, Oskar (referee) ; Sliwková, Petra (advisor)
This thesis is aimed on proposal of production technology, NC codes and production of selected hinge part. The theoretical part describes the technologies of milling, surface grinding and hole grinding as technologies used during production and as non-production technologies of CAD/CAM software. Selected production machines and cutting tools are also specified and a technological process is proposed including all the steps and operations for the production of the hinge part. According to the proposed production plan, the work in two different CAM systems for the NC code of the machining center is described. The practical part describes the production on a CNC machining center and grinders. The economic evaluation summarizes material costs, setting production costs and the production and cooperation costs.
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A concept of a revolver hammer manufacturing process
Talanda, Jakub ; Dvořák, Jaromír (referee) ; Sliwková, Petra (advisor)
The objective of this thesis is to propose a manufacturing procedure for the selected part, the Alfa revolver hammer. The paper begins with a short design summary of the part, considers available materials and bar stock, examines individual stages of the manufacturing process and makes a simple economic calculation. It concludes with a series of steps recommended for further action towards full-scale production.
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