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Manufacturing of the electric motor cover
Kolář, Zdeněk ; Svoboda, Petr (referee) ; Císařová, Michaela (advisor)
The bachelor 's thesis focuses on the design of the production of an electric motoro cover made prom low-carbon steel 11 305 with a thicnkess of 1,5 mm. For an annual production series of 100 000 pieces per year, the technology of deep drawing without wall thinning has been selected. In the practical part, it was found that the cover body can be produced in a single drawing operation. The blank diameter, increased by the trimming allowance, is 212 mm, which will be produced by cutting from coils with a width of 222 mm and a outer diameter of 1200 mm. Total fore of 249,18 kN includes the drawing component, holder and ejector. Production is carried out on the CUPJ 63 DEU hydraulic press from HŠV Polička, equipped with a lower hydraulic device. Deep drawing die is designed for the machine, which enables the production of the cover body in one drawing operation. Design is supplemented with a detailed assembly procedure. Lubricant MORLAUB KFP 61 V is used for optimal process condition.
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Design for Manufacturing of a Cover
Rusková, Marie ; Císařová, Michaela (referee) ; Řiháček, Jan (advisor)
The thesis deals with the design of the air conditioning cover, which will be placed on the roof of the bus. The part is made of 17 240 stainless steel, which is suitable for cold forming, due to its outdoor environment. Deep drawing is chosen as optimal after assessing possible production technologies. Furthermore, the most suitable shape of the blank is proposed and the necessary calculations are carried out, which are verified by numerical simulation. The deep drawing will take place in one operation. Hydraulic press CTH 250 is chosen based on the required force 554.5 kN
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Manufacturing of the hydraulic pump shaft
Nečas, Zbyněk ; Řiháček, Jan (referee) ; Císařová, Michaela (advisor)
The thesis deals with the design of the production technology of the drive shaft of a hydraulic pump, the main element of which is the groove inside the shaft cavity. This component will be manufactured by Metaldyne Oslavany, spol. s.r.o., where the production series was set at 300,000 pieces per year. The material of the component was also specified as DIN 20CrMo5 steel, which will be purchased for production in bars with a diameter of 42 mm. The workpiece will then be cut from them using circular saws. After evaluating the specified requirements, based on the analysis of the specifications, the cold forming technology is chosen for production, specifically the combination of extrusion and upsetting, which the thesis focus on. Three basic production processes were put in place, for which their manufacturability was verified using the Simufact Forming 2023.4 simulation software. For the most suitable production variant, the flow stress, deformation resistance, and forming forces are calculated for each operation, which were then compared with the results of numerical simulation. According to the highest calculated force, a suitable machine was chosen from the company's current machine park, specifically a conventional single-operation hydraulic press SMG HZPU 320 with a nominal force of 320 tons. Then, tool sets were designed for each of the forming operations, when it was found that in all operations the die must be encapsulated using two clamps. The LP4-Kopřiva program was used to determine the optimal contact diameters, contact pressures and other encapsulation parameters.
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Hydraulic press 10 000 kN
Machara, Matúš ; Dokoupil, Vladimír (referee) ; Omes, Jiří (advisor)
This thesis deals with the design of a hydraulic press for metal forming. In the first part, common solutions of the main structural nodes of hydraulic presses were mentioned. In the second part, the main structural groups of the machine, such as the hydraulic cylinder, frame, and ram, were designed in detail. An unconventional type of frame was chosen for this machine, namely a folded frame. The latter was chosen due to the potential simplification of machine production. An innovative placement of the hydraulic cylinder was also designed for this type of frame. In the conclusion, several findings were mentioned regarding the aforementioned hydraulic cylinder placement and some observations were provided for a person who would design a similar machine.
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Manufacturing of the box
Bednář, Jaroslav ; Peterková, Eva (referee) ; Císařová, Michaela (advisor)
This thesis concerns the design and production of a rotary-shaped soap box made of chrome-nickel austenitic steel 1.4301 0.5 mm thick, with a production batch of 50,000 boxes per year. Due to the size of the batch, the cutting and drawing technology without wall thinning was chosen for one drawing operation using a single tool. Based on analysis of the possibility of producing the tool and the necessary calculations, a tool was designed for the production of the lid and another tool was designed for the production of the lower part of the box. The corresponding hydraulic presses were then selected. A CUPS 25 DEU press from HŠV Polička with a forming force of 250 kN was selected to produce the lid and a Formetal PPCT-200 press with a forming force of 2000 kN was selected to produce the bottom part of the box. The production process is fully automated with an unwinding, straightening and scrapping line from Šmeral.
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Manufacturing of the wheel center cap
Jiřánek, Jakub ; Štroner, Marek (referee) ; Císařová, Michaela (advisor)
The bachelor´s thesis deals with the production of a protective rotary wheel center cap for the hub shaft of a car. It is made of steel 11 320 and the production volume has been set at 120 000 units per year. Among the possible manufacturing technologies, deep drawing was chosen as the most suitable. The diameter of the blank from which the cover is drawn was determined by calculation to be 110 mm. The number of drawing operations was calculated to be one. The total force required for the manufacture of the component was calculated to be 85 kN. According to decisive criteria, a single-acting hydraulic press CUPS 16 DEU from HŠV Polička was chosen, for which a drawing tool was designed. Finally, drawing documentation was created for the cover, assembly of the tool with the die, punch, blank holder and the body of the blank holder.
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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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Frame design for molding machine
Hodonský, Lukáš ; Budík, Tomáš (referee) ; Merenus, Ondřej (advisor)
The aim of the bachelor’s work is research in the field of forming machnines, design construction of frame hydraulic press and his design calculation. For design frame we create require drawing documents. In the end we solve model frame hydraulic press with finite element method.
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Design of two-axis linear measuring device for railroad axles pressing
Mlynář, Vojtěch ; Vejlupek, Josef (referee) ; Brablc, Martin (advisor)
The main goal of this bachelor's thesis is the design of the device capable of measuring the distance between railroad wheelset elements during pressing. The research part presents the parameters of the wheelset press and the existing solutions to the problem. Additionally, distance-measuring sensors, motor sizing methods, and sensitivity analysis methods are described. The third chapter outlines the design process, beginning with early conceptions, their analysis, and leading into the final design.
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Hydraulic press 20 tons
Hájek, Vojtěch ; Novotný, Lubomír (referee) ; Omes, Jiří (advisor)
This bachelor thesis is focused on design of the hydraulic press for pressing half–circeled depression on strut of hoods for automotive industry. The content of this thesis is calculation of hydraulic circuit, elastic and deformation calculation of frame, creating drawing documents and description of the manufacturing and following establishment according to plan of the manufacturing hall.
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