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Design of manufacturing technology for door elastomer grommet
Kavan, David ; Stehlík, Ing. Jaroslav (referee) ; Kandus, Bohumil (advisor)
The goal of this project is design of manufacturing technology for door elastomer grommet in a series of 400 000 units per year. As a proposed solution of manufacturing technology has been chosen multicomponent injection moulding. Appropriate thermoplastic elastomer and polyamide was chosen based on the knowledge gained in theoretical study of materials and technologies elaborated in the second part of the project. Moreover, the shape of the door grommnet was redesigned in accordance with the chosen technology. Working machine was chosen from manufacturer Arburg, model Allrounder 630S in a two-shot design, complemented by the index unit. A cost of production of one piece of the door grommet was determined in an economic evaluation. This cost was compared with current cost of production and new technology reducing manufacturing costs of one series by 25%.
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Technical viscous curve for injection molding
Hejkalová, Anna ; Svoboda, Jan (referee) ; Kandus, Bohumil (advisor)
Injection molding is highly dependent on flow qualities of plastics. The bachelor thesis compares the conventional measurement of their rheological attributes with the method of injection molding to the technical viscous curve. This method enables to determine the optimum injection rate at which injection resistance does not allow significant improvement of the melt’s flow attributes, on the contrary increases the energy consumption of the process. At the same time, the thesis tries to prove the advantage of this method.
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Production of components "Key pouch"
Kašpar, Jan ; Kandus, Bohumil (referee) ; Žák, Ladislav (advisor)
The main aim of this thesis is the production of injection moulds for a given component key pouch. The first part of the work describes the basic division of plastics, plastic injection technology and principles of mould construction. The second part deals with actual mould construction processed in Solidworks. The drawing documentation is the output. In conclusi-on, an economic evaluation is completed that will provide approximate cost of production moulds.
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Production single parts "Case of coil winding"
Rudolf, Bronislav ; Kandus, Bohumil (referee) ; Žák, Ladislav (advisor)
Bachelor´s thesis is elaborated in terms of branch B-STG engineering technology. Smoothing - out suggestion manufacturing engaged plastic parts from material PA66- GF25 FR by the help of injection technology. Firstly, the basic materials for injection are described, then is described injection principle, injection mold and injection machine. The practical part deals with their own forms of construction. In the inclusion is simple economics upward revaluation expense and surplus.
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Production technology of plastic body aperture
Dluhoš, Jan ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
This thesis deals with the production of a plastic body of the aperture by the method of injection moulding. The work includes a design of the injection mould for the given component. First, an appropriate material for the moulded piece was chosen and then the necessary calculations for the injection mould were made. A quadruplex injection mould with a heated inlet nozzle and pullout cores was designed based on these calculations. Modular components were chosen when designing the injection mould. The next part of the thesis contains the selection of the injection moulding machine for the given mould. The conclusion contains a technical-economical evaluation including the cost estimating for the injection mould and cost estimating for one moulded piece.
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Design of manufacturing technology for plastic plug
Kočí, Ivan ; Žák, Ladislav (referee) ; Kandus, Bohumil (advisor)
This graduation theses analyse a concept of plastic plug production using the technology of injecting plastic into the form. There is performed a design of the technologic process with necessary calculations included here. Besides that the analysis is also focused on construction of the injection form. For the solution the 3D CAD system by SolidWorks and Hasco, Meusburger, Synventive normals were used. The graduation theses is finally valorized by technological-economic summary.
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Optimization of technological parameters of injection plastic parts
Ulrich, Josef ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
This thesis describes the optimalization of technological parameters during commissioning of injection mold manufacturing. In the introduction, there is general literary studies of plastics, injection molds, injection holding machine, injection holding technology and their effect on quality. The practical part includes an analysis of current state, calculation of injection parameters, moldflow analysis and sampling on the machine. Finally, there is choice of optimal injection holding parameters, design of workplace and technical-economic evaluation.
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Production technology of plastic base device with terminal
Horník, Tomáš ; Kebrle, Ondřej (referee) ; Kandus, Bohumil (advisor)
Master’s thesis deals with selection of a proper technology for manufacturing of chosen plastic part. The beginning of thesis contains part survey. Plastic injection was chosen as the most suitable manufacturing technology. Required theoretical knowledge for plastic injection mould designing were extracted in the recherche. Individual chapters deals with plastics, their manufacturing and plastic injection technology with all required knowledge about this technology, machines and moulds. Designing chapter contains every required calculation for mould design and all individual sections of mould design and injection machine selection. Injection simulations and their evaluations are part of this thesis aswell. Assembly and forms drawings as well as other documents used during thesis processing are included in the attachments.
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Production technology of the connector body from recykled material
Brhel, Michal ; Sedlařík, Vladimír (referee) ; Kandus, Bohumil (advisor)
Study developed during the Master's degree studies of Mechanical Engineering deals with the use of recycled plastic in the injection molding and its influence on the mechanical properties of the mold. Examined product is used in the automotive industry as a connector body. The housing is manufactured from a plastic material, polyamide. The annual production volume of 3 000 000 pieces. According to tests specified in standard USCAR2 regrind influence on mechanical properties and dimensions was evaluated. After the technical evaluation of the project, research was also judged from economic point of view. In this task, savings with the different content of the recycled material during production was calculated. The final chapters justify change of properties and they are proposing the use of recycled materials in practice.
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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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