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Production of anchor foot
Janda, Petr ; Císařová, Michaela (referee) ; Lidmila, Zdeněk (advisor)
The present bachelor thesis deals with a design of anchor foot used for fixing wooden beams in the manner that, prevents a direct contact of the beam and the subsoil. It is made of bent metal sheet of 4 mm thick steel 1.0038 in the production run of 80 000pcs/year. A combination of shearing and bending at a follow tool was selected from among various options as the most appropriate. On the basis of technological, structural and control calculations, tool were designed and the technical documentation was elaborated. A blank sheet of metal with dimensions of 4 x 1500 x 3000mm (using 94%) was chosen as a semi-finished product. On the basis of the total shearing force, which was greater that the bending force, the same press CDCS 2500 P81 made by the company Dirinler was selected for both tools. Using the economic evaluation, production costs per one anchor foot were calculated in the amount of 102,3CZK, including 30% profit of the company. According to the calculated turning point, the production becomes profitable after manufacture of 12106pcs.
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Cutting of materials using wasteless technologies
Voráček, Martin ; Císařová, Michaela (referee) ; Podaný, Kamil (advisor)
Thesis contains literary review of wasteless metal cutting technologies. Technologies of shearing sheets, rods, bars and pipes are described, as well as laser, plasma and water jet cutting. The description of each of these methods consists of both physical principle and practical use, including examples of technological devices. Furthermore, main advantages and disadvantages of each method are discussed with regard to small batch or mass production.
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Manufacturing of wall clamp
Maleček, Michal ; Císařová, Michaela (referee) ; Podaný, Kamil (advisor)
A wall clamp is used for attachment of terrace board to supporting structure. The discussed part is manufactured from sheet metal 11 375.20 which is 2 mm thick. The production series will be 150,000 pieces per year. A combination of shearing and bending in the combined tool was selected from a variant solution as the most suitable technology of manufacturing. Based on technological and structural calculations, a tool was designed with lower pressure pad at the bend point. For this tool was also made fundamental drawings. In view of the total moulding force and work, LEN 40 C press with the nominal force 250 kN (manufactured by TOMA INDUSTRIES s.r.o.) was selected. Necessary manufacturing costs of one part were determined from an economic evaluation. According to a break-even point, the manufacturing becomes profitable for a series of more than 89 196 pieces.
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Production of handrail holder
Ryšavý, Jan ; Varjan, Matúš (referee) ; Peterková, Eva (advisor)
Economic and technological analysis of possible methods of production real part. The basic theoretical knowledge of selected production methods and their application in practice. The division of production methods for various production series of part using economic evaluation.
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Manufacturing of wall clamp
Hájek, Pavel ; Šlais, Miroslav (referee) ; Podaný, Kamil (advisor)
The project in this bachelor thesis solves a proposal of technology of a wall clamp manufacture. The part will be made of rolled coils (5 mm thick), from steel 11 373 in production of 150 000 pieces a year. Shearing and bending were the most optimal methods chosen from the considered manufacture technologies. The literary study is devoted to the study of chosen technologies. Based on the technological calculations, a transfer combined tool was suggested. According to the size of the overall mould force, an eccentric press LKDR 315 was chosen. This press reaches nominal force of 3150 kN.
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Analysis of appropriate finishing technology after deep drawing
Šobáň, Pavel ; Císařová, Michaela (referee) ; Podaný, Kamil (advisor)
This bachelor thesis summarizes information about appropriate finishing technology after deep drawing. The thesis is focused only on the most used and most proper methods, which include material parting operations, such as plate shearing, laser, plasma, water jet and saw cutting, and machining operations, such as lathe-turning and grinding. For each of the mentioned methods, a principle of the selected technology is described and also its suitability for the present problems. The thesis compares the individual methods considering their advantages and disadvantages for removal of uneven edges of cylindrical shells.
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Forming modern technology in engineering
Kalous, Ondřej ; Schwarzer, Emil (referee) ; Dvořák, Milan (advisor)
The project elaborated within the bachelor‘s degree field of B-STI Mechanical Engineering submitting literary pursuit of modern forming technologies in engineering. This thesis deal especially with fineblanking technologies, drawing of elastic tool and high-velocity forming. Description of their principles, advantages and disadvantages. In the last part of thesis was contrast production of driving chain gear with conventional and modern technology.
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Production of forging piece "Spanner"
Vávra, Jan ; Kopřiva, Miloslav (referee) ; Novotný, Karel (advisor)
Projects developed within the bachelor's degree in Mechanical Engineering, presented a proposal technology forged wrench - the hot-rolled steel bars 11 523.0. The thesis also compares the past with conventional methods of production and considering the new technological process of manufacturing. Based on the literature studies about fitting and calculations, was chosen to die forging hammer KHZ 2 A (producer ŠMERAL Brno, plant Hronov), with nominal energy of 20 kJ working pressure of 16 MPa and 30 kW electric power.
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Forming Technology of Thin Sheets with Coating
Procházka, Lukáš ; Schwarzer, Emil (referee) ; Dvořák, Milan (advisor)
The bachelor's thesis deals with forming technology of thin sheets with coating. It is divided in three separate parts. Firstly, technologies used for forming thin sheets with coating like bending, drawing, spinning and shearing are discussed. Secondly, the thesis presents coatings, their types and means of measuring their thickness as well as examination technologies. The last part consists of a set of experiments testing aforementioned facts on testing samples.
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Production of forging piece "Spanner"
Vávra, Jan ; Kopřiva, Miloslav (referee) ; Novotný, Karel (advisor)
Projects developed within the bachelor's degree in Mechanical Engineering, presented a proposal technology forged wrench - the hot-rolled steel bars 11 523.0. The thesis also compares the past with conventional methods of production and considering the new technological process of manufacturing. Based on the literature studies about fitting and calculations, was chosen to die forging hammer KHZ 2 A (producer ŠMERAL Brno, plant Hronov), with nominal energy of 20 kJ working pressure of 16 MPa and 30 kW electric power.
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