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Application of modern technologies for the production of spare parts airsoft guns
Král, Ondřej ; Zemčík, Oskar (referee) ; Jaroš, Aleš (advisor)
This bachelor thesis describes design and manufacture of airsoft spare parts. Selected spare parts were hammer and spring holder, which were designed in 3D parametric software Autodesk Inventor 2016. Chosen method to manufacture spare parts, was Fused Modeling Deposition, which is part of Rapid Prototyping technology. The device for producing parts was 3D printer uPrint. The manufacture of silicon mould was based on printed spring holder, which was used for parts manufacture, by casting plastic materiál. Thesis is completed with a technical-economical evaluation, in which it was found that the silicon mould casting is more profitable in the production of more parts.
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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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Design and production of experimental axle part
Volfík, Jiří ; Slaný, Martin (referee) ; Zemčík, Oskar (advisor)
The content of this diploma thesis is a design of construction and selection of suitable material for upper-carrier part used for racing vehicle, produced by FDM 3D printing with the alternative option to replace an existing part, which was produced by conventional technique of CNC machining. Various versions of the experimental part are analyzed by FEM and compared in terms of safety coefficient with target to select the most appropriate construction design. The chosen version of the model is at the end compared with already existing part, which was also analyzed by FEM.
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Analysis of electro-spark cutting and digging machines from firm name Emotek s.r.o. and their enforcement on EU market
Svoboda, Jiří ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
The aim of this work is to make the reader closer to the principle and usage of an uconventional technology of shaping metal materials - electro discharge machining. The first part of the work contents historical dates, an explanation of the principle and the technological insertion. In the second part I concentrate on the range of products of the Slovakian company Emotek, to be specific, on their spark cutting machine EIR 005. I sample the description of the machine and its technical - economic comparison with the competitive electro - spark machines. The whole work is primarily concentrated on the electro - spark cutting machines. The digging machines are mentioned only marginally. Lastly, the work should persuade the readers of indisputable advantages of this technology and its utilization. Furthemore to introduce Emotek as a company competing with other external producers as well as with merchants and to point out the further possible progress of the company and its activity in the electro - discharge machining branch.
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Production of GPS holder on FDM 3D printer
Šebesta, Vít ; Šeniglová, Hana (referee) ; Zemčík, Oskar (advisor)
This bachelor thesis is dealing with design and production of a model holder for GPS using 3D FDM printer. Three models were created by the Autodesk Inventor Professional 2015 and they were economically and technically assessed. Then model No.3 was chosen for detailed analysis. The important methods of 3D printing and appropriateness of using different materials such as ABS and PLA are also discussed in this thesis.
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Automation of layoutplanning
Pavlíček, Michal ; Zemčík, Oskar (referee) ; Hlavenka, Bohumil (advisor)
This thesis deal with suggestion of program, which channelize technologist-planner whole tasks which are unit with projection. Deal with capacitive calculation methods and technology projection methods. This methods were implementing in program Excel and AutoCAD. It was reaching configurational guide in html format, which unit whole section of program.
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Suggestion of technology for manufacturing parts of a hydraulic press
Gryc, David ; Mouralová, Kateřina (referee) ; Zemčík, Oskar (advisor)
An introduction of hydraulic press and description of his main parts. An analysis of the given components and a proposal for the most suitable intermediate was made. A selection of tools and gauges for individual operations has been done. A proposition of manufacturing process and enumeration of machines times was proposed. Economic evaluation containing costs for intermediate, tools, workmen’s wages and energy for operating machines has been calculated.
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Plastic materials and their treatment
Kopečný, Aleš ; Zemčík, Oskar (referee) ; Osička, Karel (advisor)
This research the basic empirical knowledge about the processing of plastic materials. The following are analyzes of the nature of plastic materials and analysis of the use of these materials in the engineering industry. This paper deals with the technological methods of processing plastics. Specifically, it is done as a summary of information about the technologies needed for the production of molds for plastics. Key words
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Simulation of a temperature field of the FDM printhead
Rousek, Jakub ; Dvořák, Jaromír (referee) ; Zemčík, Oskar (advisor)
The aim of this thesis is to analyze the thermal behaviour of the printhead used on RepRap 3D printers. The main focus was on heatbreak zone, where are located important processes in terms of softening and melting of materiál. For choosed printheads is looked at effect of their design on the temperature profile and lenght of thermoplastic transition phase. For the purpose of simulations, 3D models were created using CAD system. These models were then used as vase for the simulation models of temperature distribution and spreading. The prinhead used for CR10 printer reach significantly worse result of heat distribution in heatbreak for model with bolt attachment between heat block and heatsink. This attachment is increasing temperature at the bottom of of heatsink and also increasing length of transition zone. The same attachment is look at for the second type of printhead – A10M. Here is difference less noticable. The heat transfer by attachment bolts is compenzated by reducing thickness of wall in the heatbreaks. For the printhead type diamond was deemed necessery usage of insulation materiál between heat block and rst of the components. Insufficient insulation is increasing risk of clogging and thermal damage to construction supporting fan.
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