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The introduction of lean manufacturing into an engineering company
Procházka, Vojtěch ; Sedlák, Josef (referee) ; Jaroš, Aleš (advisor)
The diploma thesis is focused on implementation of lean production through using Lean Six Sigma method into an engineering company, producing cable harnesses for the automotive industry, mainly for trucks. The aim of the project is to increase production capacity by 25 %, reduce wastage rate to 3 % and design a new layout of production areas. The budget of this project is 3 million CZK. The production was slimmed down using the 5S methodology. To meet the aim of the project, three new machines had to be bought. The steps have resulted in a saving of 64 CZK per piece, which means a return on investment in about 8 months.
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Computational Analysis of Electric Car Ride
Procházka, Vojtěch ; Blaťák, Ondřej (referee) ; Hejtmánek, Petr (advisor)
The topic of bachelor thesis is the suspension of electric vehicles and its comparison with conventional cars. The research part describes properties of electric vehicles and their influence on the design. The increase in their total weight due to batteries and chassis solutions is being investigated especially. The next section is focused on electric motors, especially electric in-wheel motors, which represent a significant increase in unsprung mass. The next chapter describes the effect of suspension and its importance in terms of driving comfort and safety. In the computational part, the influence of the increased sprung and unsprung masses, which were defined in the search, is analyzed using the quarter car model in the MATLAB program. These results are evaluated in conclusion.
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Production of air filter cover
Procházka, Vojtěch ; Žák, Ladislav (referee) ; Podaný, Kamil (advisor)
The thesis is concerned with the concept of an air filter cover production .The component has a cylindrical shape with a circular protrusion and a hole in the bottom. It is made of a steel sheet 11 320 with the thickness 1 mm. Considering the production volume of 20,000 units per year, it was chosen as the most suitable pulling technology with a conventional tool without wall thinning. The component needs to be pulled in two operations, each time a retainer has to be used. The tool for each operation is separate. Technical drawing documentation is processed for the second tool. Due to the calculated force, the ŽĎAS CTH 250 hydraulic press with a nominal force of 2,500 kN was chosen. The economic evaluation shows that the production material cost for one piece is about 42 CZK. The cost of the second stroke tool is 260,000 CZK.
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Řízení rizik ve společnosti zabývající se výrobou otopných systémů
Procházka, Vojtěch
Master's Thesis is dedicated to risk management in company engaged in the production of heating systems. The main goal of this Master's Thesis is the formulation and quantification of suitable recommendations. Through a detailed study of specialized literature and expert articles is explained risk management, the process of risk management, methods of risk identification and risk reduction methods. The acquired knowledge are applied to elaborate the practical part. Risks are identified at the macro environments and analysis of internal and external environments of the company. The probability of occurrence for these risks are determined subsequently for these risks, the size of the intended business impact is determined and the significance of the individual risks are established. Then for each risk is determined recommendations for risk management at Korado a.s.
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