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Processes of open-die and die forging
Tvrdoň, Radek ; Peterková, Eva (referee) ; Lidmila, Zdeněk (advisor)
The thesis presents a theoretical summary of forging processes. It deals with the selection of semi-finished product, machine and also forming processes for both types of forging. It explains the usability of open-die forging for making simple parts and die forging for more complex components. While solving the die forging, the thesis is extended with instructions for making a drawing of a forged piece, which nominal dimensions are extended by mentioned additions. The drawing is followed by explanation of procedure of creation a die cavity, which is different for presses and hammers. The thesis also describes the process of calculations of forging force and labor.
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Posouzení faktorů ovlivňujících koncentraci prachových částic při lisování píce
ŠŤASTNÝ, Vladislav
The objective of this diploma thesis is to assess the factors affecting the concentration of dust particles during forage pressing. For this purpose, five presses for square bales and five presses for round bales were selected. They were harvesting different kinds of straw. Thanks to measurement using an aerosol monitor, the concentration of dust particles during the harvest was detected. The measured values were evaluated and the amount of concentration of the dust particles between the square and round bale presses was compared. There were also set the methodological steps of the measurement procedure.
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Design of work station for pneumatic actuators assembly
Fuglíček, Ladislav ; Tůma, Zdeněk (referee) ; Tůma, Jiří (advisor)
Thesis deals with proposal lay – out assembly for pneumatic cylinder. Assembly is proposed into separate workplace. Single step are described in those work according to which workplace assembly are put together, division pneumatic cylinder to single constructional insider division and operation on single workplace and description these workplace. Analysis proposal is implementation in the end.
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Press design for paper briquettes
Kočař, Jiří ; Rebenda, David (referee) ; Dvořáček, Jiří (advisor)
The bachelor thesis deals with an engineering design of a press briquette machine, which process refuse of paper. This refuse is used for production of paper 's, eventually paper-sawdust 's briquets. The first part contains analysis of options of processing garbage, current machines producting briquets and their versatility. The second section is focused on a final design of a pressing machine and a general description of it's parts.
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Forming lines molding hot weighing up to 100 kg
Smyček, Ondřej ; Humlíček, Jaroslav (referee) ; Omes, Jiří (advisor)
This project was made within the engineering studies and its aim was to design an assembly line to product assigned components of appropriate quality and quantity, using the technology of hot extrusion, both backward and forward. A series of technology steps was suggested, parameters necessary for individual operations were set and on this basis, adequate machines were chosen. The conclusion of this work contains technical-economical evaluation for the chosen options which expects the ten-year return with average production of 40 000 pieces.
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Production of air filter cover
Procházka, Vojtěch ; Žák, Ladislav (referee) ; Podaný, Kamil (advisor)
The thesis is concerned with the concept of an air filter cover production .The component has a cylindrical shape with a circular protrusion and a hole in the bottom. It is made of a steel sheet 11 320 with the thickness 1 mm. Considering the production volume of 20,000 units per year, it was chosen as the most suitable pulling technology with a conventional tool without wall thinning. The component needs to be pulled in two operations, each time a retainer has to be used. The tool for each operation is separate. Technical drawing documentation is processed for the second tool. Due to the calculated force, the ŽĎAS CTH 250 hydraulic press with a nominal force of 2,500 kN was chosen. The economic evaluation shows that the production material cost for one piece is about 42 CZK. The cost of the second stroke tool is 260,000 CZK.
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Posouzení kvality lisovaní u sběracích lisů
Renčín, Lukáš
Diploma thesis is focused on a roller and prismatic bales, their the most important functional units and description this units followed by practical measurement selected parameters. First part contains a distribution presses on a round baller and square baller and their inclusion into agricultural machinery lines. The following describes the most important functional units of both types. Second part contains field-laboratory measurement, there are evaluated weight package parameters depending on its compression. Furthemore, performance is evaluated based on different parameters.
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The Machines and Tools for the Fineblanking Technology
Šindelka, Marek ; Císařová, Michaela (referee) ; Peterková, Eva (advisor)
This work provides a brief overview of the used machines and tools designed for fineblanking. Fineblanking is a technology from the field of the surface forming, suitable especially for mass production, which can be used to make a functional component in a single operation. This work also lists the various methods of precision cutting, and describes the tools, that are the main reason for the quality of the product. Furthermore, in this work are listed some examples from today in practice used machines and their planting into the entire complex of production lines.
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Manufacturing of part of garage automatic door lock by compound tool
Vaverka, Ivo ; Šlais, Miroslav (referee) ; Peterková, Eva (advisor)
This master’s thesis created in the master studies of the M-STG Manufacturing technology is focused on the manufacturing of a part of a garage automatic door lock by a compound tool. The part is made of a rolled steel coil of the S275JR material with the thickness of 2 mm. The number of parts manufactured per year equals to 600 000. Literary studies deals with the issues of cutting and bending. On the basis of the most advantageous manufacturing variant and technological calculations the compound tool is designed. As a working machine the eccentric press LEK 160 is chosen. In the economical evaluation part, the calculations to finding out when the manufactory becomes profitable are carried out.
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Bending technology profile of steel
Kameník, Tomáš ; Žák, Ladislav (referee) ; Dvořák, Milan (advisor)
KAMENÍK Tomáš: Bending technology profile of steel The project has been elaborated within the master's of studies of the subject M-STG manufacturing technology and it presents the lay-out of the bending technology profile of steel from the material S235JRG2. The bend is made by the bending and the press tools. The press tools and the bending profile were suggested on the bases of the literature study of technology bending. In consideration of the calculated bending power and the dimension profile will be made profile on the hydraulic press CYS 320 ( the manufacturer ŠMERAL Brno a.s.). At the end of the the thesis there are performed calculations of the technical and economic evaluation for the machine press and the bending .
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