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Quality control analysis of fuel tanks
Kostková, Diana ; Maradová, Karla (referee) ; Zuth, Daniel (advisor)
In my bachelor's thesis, I focused on quality control, where understanding the entire issue and the essence of individual tests required examining the production process. Each type of production has its strengths and weaknesses, so I aimed to highlight these factors throughout my work. Subsequently, I delved into individual tests, deliberately selecting them so that each test evaluated a different parameter. This was followed by recommendations for improvement in practice, focusing on dimensional control to enhance production efficiency while minimizing time consumption. The main aim of this recommendation was to reduce scrap rates by at least one-third. I assessed the suitability of equipment using a multi-criteria evaluation method, ultimately identifying the most suitable equipment based on designated criteria, including measurement speed, measurement accuracy, price, safety and many others.
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Manufacturing of the sensor holder
Horáček, Jonáš ; Ohnišťová, Petra (referee) ; Harant, Martin (advisor)
The present thesis focuses on developing the manufacturing technology for a polycarbonate holder designed to attach motion and water level sensors to the walls of residential units. Based on an analysis of the requirements and the nature of the component, injection molding is identified as the most suitable production method. Research of this process is further elaborated. Technological calculations are then performed, leading to the design of a quadruple mold featuring a hot runner system and direct gating. Most mold components were sourced from the supplier Meusburger, with the exception of the mold inserts, which were custom-made to facilitate the manufacturability of the mold and reduce costs. A simulation analysis of the filling process was performed to identify potentially hazardous process zones, specifically areas where compressed air could be trapped. Venting solutions were implemented in these zones to mitigate any potential hazards. Following the design specifications and additional calculations, the ARBURG ALLROUNDER 470 C GOLDEN EDITION injection molding machine was selected for the mold. A drawing documentation is attached to the thesis.
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Design of manufacturing technology for plastic terminal device
Adamiec, Pavel ; Žák, Ladislav (referee) ; Kandus, Bohumil (advisor)
The master thesis deals with design to produce terminal using the plastic injection molding. In the first part are theoretical information about injection molding and injection molding with inserts. The second part is a concrete design of production terminal which contains: injection mold design, calculation of the injection parameters, machine selection, technical and economic evaluation of production. Terminal is made of polyamide 66, inserts material is brass. Parts of injection mold assembly are selected from Hasco standards. The main parts of assembly are made of 1.2312 steel. Production cycle is placed on injection machine Allrounder 375 V from Arburg.
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Design of manufacturing technology for plastic terminal device
Adamiec, Pavel ; Žák, Ladislav (referee) ; Kandus, Bohumil (advisor)
The master thesis deals with design to produce terminal using the plastic injection molding. In the first part are theoretical information about injection molding and injection molding with inserts. The second part is a concrete design of production terminal which contains: injection mold design, calculation of the injection parameters, machine selection, technical and economic evaluation of production. Terminal is made of polyamide 66, inserts material is brass. Parts of injection mold assembly are selected from Hasco standards. The main parts of assembly are made of 1.2312 steel. Production cycle is placed on injection machine Allrounder 375 V from Arburg.
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Application of quality control tools
Dubská, Markéta ; Hůlová, Marie (advisor) ; Kořánová, Helena (referee)
This bachelor's thesis focuses on a quality management in the enterprise JE Plast s.r.o. The aim is to suggest possible ways of improving the quality of processes and production in the company and to show the potential use of the seven quality control tools. The work is divided into two parts -- theoretical and practical. Firstly, it describes theoretical concepts of quality and approaches to its management. Further, it deals with quality control legislation and provides an overview of quality management tools. In the practical part, there is description of the company JE Plast s.r.o. After that, the tools for specific production are applied. For this purpose, the author used data obtained during the monthly monitoring of production in the company. Finally is presented the evaluation of the resulting outputs and proposal how to make manufacturing processes more efficient. Outputs will be further delivered to the company JE Plast s.r.o.
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