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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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Manufacturing of a Cable Bottom Part of a Switchboard
Radnický, František ; Žák, Ladislav (referee) ; Řiháček, Jan (advisor)
This master´s thesis is focused on design of suitable technology of cable bottom part of a switchboard, made from aluminum EN AW-1050A. As the semi-finished product is chosen the coil of sheet metal with a thickness of 2 mm. The production series of this component is 300 000 pieces per year. To select the most suitable technology for the production of solved component the evaluation of different available technologies was carried out, of which as the most appropriate method, the compound tool combining shearing and bending is selected. Literary search was created to the mentioned technologies. Furthermore, the technological and constructional solution is elaborated, which also includes the design of the combined process tool. As a forming machine was selected eccentric press Mecânica Exacta DM 250, where the compound tool is clamped. In the last phase, a technical and economic evaluation is performed to verify the suitability of the proposed solution.
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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 of metal yoke of electrical socket by compound tool
Svozilová, Lucie ; Řiháček, Jan (referee) ; Peterková, Eva (advisor)
The project elaborated design of technology production of the metal yoke of electrical socket made of steel DX51D + Z200 by compound progressive tool. Stock material for series of 200 000 pieces is a strip of coil. Manufacturing is realised in five steps consist of cutting, bending and flanging. For flanging was constructed a special mechanism for whose is necessary to use hydraulic counterholder, which is sold as a special peripheral equipment of manufacturing machine. The machine choice was adapted to this criterium. The servopress DSF-N1-800A was chosen as a manufacturing machine, which is made by AIDA company. The press can produce force of 800 kN and make work of 4000 J. Selling price of a one yoke is 24,5 Kč when the profit is one hundred percent. The break-even point comes with 58 140 made piece.
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Manufacturing of the part "shaker" by cold sheet metal forming
Pekař, Pavel ; Císařová, Michaela (referee) ; Jopek, Miroslav (advisor)
The project elaborated design of technology production of the extract from the stainless deep drawing sheet 0,3 mm steel 17 240. Pursuant to of the literary pursuit a problem of the sheering and deep drawing was designed sheering and drawing with blank holder in combined tool. The tool is solved like customary rack with guiding rods clamped on the hydraulic press for forming of sheet PO 100 with nominal forming force 1 000 kN. Shearing die, drawing die and drawing punch are produced from tool steel 19 436.9 heat-worked according to drawing documentation.
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Production of the Carbon Holder
Kratina, Patrik ; Řiháček, Jan (referee) ; Žák, Ladislav (advisor)
This master´s thesis focuses on the concept of manufacturing of carbon brush holder, made of steel S235JRG (ČSN 11 343), with thickness of 1,5 mm. In order to reduce costs, it was decided to manufacture the holder with progresive stamping tool, which combines cutting, bending and edging operations in order to achieve specific part shape. Based on relevant calculations the mechanical press LEN 63 C was chosen. The production series was set at 50 000 pieces.
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Improvement of drilling technology of flange for a submersible electric motor
Veselský, Radim ; Kalivoda, Milan (referee) ; Jaroš, Aleš (advisor)
The goal of this bachelor’s thesis is introduction of existing drilling technology, assessment of existing technologies and design combined step–drilling tool. The first part of the bachelor’s thesis describes existing drilling technology, drilling tools and drilling machines. The second part of the bachelor’s thesis describes workpiece and existing technological process of its production. The last part of bachelor’s thesis consists of design of new step–drilling combined tool and its implementation to new technological process.
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