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Manufacturing technology design of the automotive door hinge
Dvořáková, Jana ; Císařová, Michaela (referee) ; Dvořák, Milan (advisor)
The bachelor thesis presents a production proposal of an automotive door hinge from the sheet metal ČSN 11 321 and an economic evaluation of the chosen variant. The hinge is produced in a combined tool by shearing and bending operations. The tool is clamped to a ZH 2500-2000 NG mechanical press with a nominal force of 2500 kN. Because of the press parameters, alternative solutions are proposed that could lead to an increased capacity utilization. Part of the thesis is a literary research, the output of this research is an overview of cutting technologies with evaluation of their suitability for production of the given part, theory of bending and stamping technologies, a brief outline of the possibility of component production by a method of additive manufacturing and theoretical calculations. Technical variants of series production tools are compared as part of the technical and economic evaluation. Drawing documentation of a component and of a tool are listed in the attachment.
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Production of parts for window fittings
Havliš, Lukáš ; Špaček, Jindřich (referee) ; Žák, Ladislav (advisor)
This project submits a proposal for manufacturing technology of casement and frame window hardware base, made of 11343.23 steel 2,5 mm in thickness and with 15000 pieces annual production volume. The components form an integral part of a window hardware arrest mechanism. From potential variants of manufacturing, the technology of stamping and bending, with the use of a combined tool, was chosen. A bibliographic search examining these technologies was made and the machine LE 250 with nominal forming force 2 500kN was selected. The project comprises structural and technological calculations, including the combined tool design. In the economical part of the project, the product prices were quoted and the break-even point was determined. The break-even point is broken as soon as 13 046 pieces are manufactured.
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Production of a clamp
Svoboda, Petr ; Forejt, Milan (referee) ; Podaný, Kamil (advisor)
The thesis presents a proposal for the production technology of the clamp in the company FERRUM s.r.o. It is used to connect floor grates to the supporting structure. It is manufactured from 2 mm thick DC01 sheet metal in a series of 3,500 pieces per month with subsequent surface treatment in the form of hot-dip galvanizing. From the proposed production possibilities, the technology of shearing and bending in a combined tool was chosen. Production takes place in four steps, in the first the outer contour is trimmed, in the second the short arms are bent, in the third the hole for the screw is cut, in the last the long arm is bent, and the part is separated from the rest of the blank. The design of the tool has been developed considering the production capabilities of the company's machining centre. These include turning, milling, drilling and grinding. The production requires a forming force of 387 kN and will be carried out on a LEN 63 C eccentric press located in the company's machine park.
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Manufacturing of kitchen sink
Vágner, Lukáš ; Peterková, Eva (referee) ; Jopek, Miroslav (advisor)
The project deals with the design of production of the kitchen sink made of chromium-nickel austenitic steel 1.4301. Material thickness of the sink is 1 mm. The annual production series is 30,000 pieces. After considering the size of the produced series, a combination of shearing and deep drawing was chosen as the production technology. Shearing of the circular shape was combined with the execution of both draws into one production tool. For this design, the necessary calculations were performed along with verification by simulations in the PAM-STAMP program.The tool is clamped in a hydraulic press PO 400, which has all the necessary parameters. The coil blank is guided through the unwinding and straightening device Compact Line GLK3-1000. The selling price of one sink was set at CZK 1,300. Production becomes profitable after producing 7540 sinks.
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Design of oil pan production
Švejda, Jakub ; Jopek, Miroslav (referee) ; Podaný, Kamil (advisor)
The project elaborated with the technological design of the production of a rectangular oil pan with a vertical bottom, a flange and the logo of the current manufacturer. The material is 1.4301 stainless steel, the wall thickness is 1,5 mm and the production series is 20 000 pieces per year. The semi-finished product is a metal sheet with the size of 1 500 mm by 3 000 mm, from which rectangular profiles with dimensions of 674 mm by 474 mm are obtained with board scissors in the required quantity of 1 667 pieces. Based on the requirements of the pan, a tool design was created, which was conceived in a combined design enabling all technological operations to be performed in a single working stroke. The basic shape is obtained by deep drawing technology without wall thinning in one stroke with a holder. The required parameters of the flange are ensured by blanking and the logo is created by stamping. The tool was designed on the basis of calculations, using the maximum number of standardized components, and its functionality is conditioned by cooperation with a hydraulic press from Dieffenbacher PO 250, which enables the combination of all three technological operations in one stroke due to two lower holders.
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Production Design of a Holder for Paddle Valve and Pressure Gauge
Bílek, Jan ; Harant, Martin (referee) ; Řiháček, Jan (advisor)
The bachelor thesis is focused on the design of a suitable manufacturing technology for a sheet metal holder for valve and pressure gauge control for buses. A 1.5 mm thick sheet metal roll was chosen as a semi-finished product. S235JR structural steel was selected as the optimum material. The production series was set at 150,000 pieces per year. After evaluating suitable production methods, the technology of sequential shearing and bending combined in a combined tool was chosen. In the proposed tool, the part will be produced in four steps from 11 rolls with 95.85 % utilization. The production will be carried out in a Mecânica Exacta eccentric press, model CC100, supplemented by a coil unwinding device.
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Manufacturing of the water siphon by sheet metal forming
Toufar, Jan ; Lidmila, Zdeněk (referee) ; Jopek, Miroslav (advisor)
The thesis presents a design for the manufacturing of a foul air trap made of chromium-nickel austenitic stainless steel resistant to corrosion 1.4301. In regards to the rotationally symmetrical shape of the air trap, the most fitting technology for manufacturing was deep drawing without thinning of the side and for the preparation of the blank shearing. The selected method of drawing, results in the necessity to utilize a triple action press, which allows for the optimal connection of all selected technologies into one combined tool. All technological calculations were determined and examined. Based on these calculations, a tool was designed. In this tool, the component is assembled out of a coil in three operations of one stroke. The selected machine for production is the press Dieffenbacher PO 250.
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Design of a combined tool for holes machining of the universal chuck
Kovář, Matouš ; Fiala, Zdeněk (referee) ; Jaroš, Aleš (advisor)
This master’s thesis focuses on the design of a combined tool for machining holes of a universal chuck. The thesis analyses the component and technologies used for the production of precision holes for pinions in the chuck body. Furthermore, the current production of precision holes is described, including the used machine, tools, cutting conditions and technological process with machine times. In the next part of the thesis, a proposal of more efficient production of precision holes is made accompanied by a design of a combined tool. The design includes its structural treatment, used cutting tool inserts and drill, the method of clamping, used material, the heat treatment, the determination of the cutting conditions and the development of a new technological procedure. The thesis concludes with a technological and economic evaluation, where the existing and the newly proposed technologies for the production of precision holes for pinions in the chuck body are compared.
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Manufacturing of the Body Part of an RC Helicopter
Kománek, Michal ; Císařová, Michaela (referee) ; Řiháček, Jan (advisor)
This thesis deals with the production of manufacturing of the body part of an RC helicopter, made from aluminium sheet with a thickness of 1 mm. Set production series is 200 000 pieces per year. After researching suitable production methods, the technology of progressive stamping was chosen. Based on theoretical knowledge has been design a production plan with the highest productivity. Technological and design calculations serving as a basis for tools and press selection are also an essential part.
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Manufacturing of the Wall Bracket
Fridrich, Ladislav ; Jopek, Miroslav (referee) ; Řiháček, Jan (advisor)
The bachelor's thesis deals with a suitable design of production technology for a wall bracket, which will serve as a speaker positioning system. The part is made of non-alloy structural steel S 235JR with a thickness of 3 mm. The production series is set at 200,000 pieces per year. After evaluating the production possibilities, the technology of bending and progressive cutting is chosen, which are combined in a combined tool. Subsequently, the most suitable arrangement of the part on the sheet metal strip is selected and the sheet metal coil is selected as a semi-finished product for production. Furthermore, technological calculations are performed and drawing documentation of the tool is made. Based on the calculated values, the production machine Mecanica Exacta model CC250 from the company Formetal s.r.o.
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