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Progress in technology of mold milling with coated profile tools
Doležel, Ondřej ; Bumbálek, Bohumil (referee) ; Píška, Miroslav (advisor)
This diploma thesis is involved in possible development of different types of milling molds coated with modern plows. The first part is devoted to an analysis of contemporary trends in forms production technology. The analysis includes the different types of machines and tools for making various kinds of molds and dies. Another part deals with design of dies for sheet metal shears. The thesis continues by design of the production procedure after heat treatment and finishing die by miling. For milling of die are designed miling tools, the NC program and the possible development of manufacturing the die using a new machining center and the possibility of production optimization. The penultimate point of the thesis is technical and economical evaluation of the direction of development and comparison of positives and negatoves of each method. At the final evaluation is all summed up.
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Design of technology for a mould manufacturing for casting in short run production
Pivoda, Miroslav ; Dvořáček, Jan (referee) ; Sedlák, Josef (advisor)
The aim of thesis is to describe the basic methods called Rapid Prototyping in theory and using one of them to create master model. Master model will be used to create silicone mould where a limited series of wax models will be by means of vacuum casting chamber. They will also be used to make ceramic form in which the final pad will be cast from freely accessible materials. After processing it the suitability of the proposed technologies for the production of the part in question will be assessed.
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Production technology for plastic socket outlet
Pokorný, Martin ; Orel, Daniel (referee) ; Kandus, Bohumil (advisor)
This project concentrates on the technology of manufacturing of the plastic socket outlet. It consists of two parts, where the first part is a literature study. Here are described the characteristics of the materials and their specifications. Further on is described basic knowledges technical methods of injection and some other technologies. The second section consists of the right proposal of the material. Further on in this section is described technological treatment. Mechanical function and its design and technical drawing are a part of this second section. As a final result is a brief comparison of the technology between the injection or pressing into molds. Herewith is also included a simplified financial budget calculation.
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Production single parts from thermoplastic
Ruibar, Jakub ; Kandus, Bohumil (referee) ; Žák, Ladislav (advisor)
The project developed in terms of engineering study of field N2307-00 Engineering Technology submits a design of components from plastic production technology – centre ring of labels on CD. In literary study there are summarized the basics of technology issues in elaboration of plastics injection into the metal form. The work includes production of component technology assessment and design of component production technology. Furthermore, the work includes the design of constructional solutions injection form, the option of suitable material of injection and the injection machine as well as the economic classification of production. As part of this diploma work is also considerations process of injection through the use of simulation program Moldex3D. This work is supported by appropriate drawing and appended documentation.
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On the modern surface treatment of pressure casting dies
Černý, Štěpán ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
Bachelor thesis is focused on the influence of surface treatments due to prolonging life and decreasing an amount of service hours on the die casting molds of aluminium alloys. Theoretical analysis of the problem deals with the requirements for tools materials used for making these moulds. Furthermore it deals with the materials which are most commonly used in their production and the species of aluminium alloys which are most commonly casted. The second part of this thesis, which is discussed in detail, deals with design solution regarding to usage of surface finishes on the moulds for die casting and their specific properties. Another part of this thesis contains experimental tests where was measured selected coating in order to determine its behaviour during the casting cycles with a focus on increasing lifetime of the mould insert, also reducing the amount of glued metal on the walls and finally improving the surface of casted part. It was found, according the analysis results, that the TiAlN coating helped to reduce the amount of glued metal on the mould walls. This also helped to reduce the amount of service intervals. On the other side for achieving much better results is better to use TiB2 coating. It has been experimentally confirmed that the TiAlN coating is not suitable for using in die casting moulds of aluminium alloys.
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Comparison of options in production of injection molds
Marko, Tibor ; Sliwková, Petra (referee) ; Kandus, Bohumil (advisor)
The project elaborated in frame of engineering studies branch engineering technology (2303R002) by comparing different methods of injection molding tool manufacturing. Set manufacturing method for each one of three selected plastic parts, particularly focused on cavity and core manufacturing. Various technological methods of manufacturing, material removal and forming plastic parts will be used for each cavity and core. Production research and economical evaluation will be developed based on given production processes and technology, which will determined which technology to use to pay off in economic terms, depending on the complexity of the plastic part.
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The design and technology of a mold production for the precision casting
Kopcík, Daniel ; Humár, Anton (referee) ; Píška, Miroslav (advisor)
The theoretical part of this bachelor´s thesis describes basic attributes of the lost wax casting method. The aforementioned section describes casting stages from component assignment to model casting, with the main concern of making wax model moulds, materials employed for moulding mixtures and casting accuracy achieved by precise casting. The experimental part begins with mould design for two components set by a customer, continues with focusing on design of casting and wax model mould. This is followed with creation of the CNC machine control program as well as choice of the moulding mixture and finally description of such casting. The experimental section is concluded by brief description of casting test and evaluation of the quality and accuracy of cast parts.
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