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Manufacturing of clamp
Svoboda, Petr ; Lidmila, Zdeněk (referee) ; Podaný, Kamil (advisor)
The bachelor thesis presents the modernization of the technological process of clamp manufacturing in the company FERRUM s.r.o. The part is used to connect the protective elements with the exit ladder. The component is made of 3 mm thick sheet metal. S235JR steel with subsequent hot-dip galvanizing as an anti-corrosion treatment was chosen as the starting material. Regarding to the size of a series of 1300 pieces per week, the shearing and bending technology in the combined tool was chosen from the production possibilities, where the part will be produced in three steps. In the first, holes for the screws are punched and the part is cut from the blank, the second step is free and serves for shift. In the third the part will be bended. A forming force of 618 kN will be required for production, which will take place on an eccentric press LEN 63 C, located in the company's machine park.
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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 concept of adjustable holder
Slavík, Tomáš ; Řiháček, Jan (referee) ; Císařová, Michaela (advisor)
The discussed issue was the production of the body of the adjustable universal holder for license plates, blinkers, and reflectors for Yamaha motorcycles. The material chosen for the production of the component was DC01 steel with a thickness of 3 mm and the size of the series is 120 000 pieces per year. After evaluating considered production variants, it was decided that the part will be made in compound tool that combine shearing and bending operations. The part will be produced by four shearing operations, three inter-shearing operations, one bending operation and by shearing the finished component from the sheet metal strip. Sheet metal coil was selected as the semi-finished product, with a material usage rate of 51,46%. Based on technological calculations, it was decided that the eccentric press DM400 from Formetal will be used for production. The tool design with a spring floating guide was chosen and his parameters were derived from previous calculations and the selected production process.
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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 protecting cover by compound tool
Janáč, Jakub ; Řiháček, Jan (referee) ; Peterková, Eva (advisor)
The master‘s thesis deals with a proposal of the manufacturing of a protective cover, which is sheet metal part with a thickness of 3 mm from the EN AW-3103 alloy. According to the analysis of possible technologies, the most effective option is production in a progressive die. This combines cutting and bending and these technologies are analyzed in a literature study. Based on the assessment of the technology control and control calculations a die is designed. This die produces the part in five steps. As a suitable machine an eccentric press Vaptech PE160MA is chosen.
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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 a post anchor base by compound tool
Pokorný, Michal ; Štroner, Marek (referee) ; Peterková, Eva (advisor)
The bachelor thesis deals with the design of a production process of an anchor, which is used to connect wooden beams to a concrete base. Steel sheet 11 375 of a 4 mm thickness was chosen for the production. A combination of cutting and bending technologies will be used to achieve the desired shape of the component. Technological and control calculations were performed for the cutting and bending operations. Based on the calculations, the compound tool was designed and constructed and a drawing documentation of it was created. A semi-finished product in the form of a roll sheet will be used for production. The PMV 300 mechanical press, supplemented by a feeding line, was proposed as a suitable machine for production.
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