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Production of shaft
Jančík, Petr ; Štroner, Marek (referee) ; Císařová, Michaela (advisor)
The bachelor's thesis is classified under the field of Engineering Technology and proposes a process for the production of a shaft made of steel 12 050 by combined extrusion. The material in question can be used, for example, for parts of mining machines, larger gears, pins or screws. In accordance with the acquired findings on the issue of volume forming, the production of the component was designed for two forming operations. A block with a diameter of 55 mm and a length of 146 mm was chosen as a semi-finished product. The production was designed on a Schuler automatic machine, which is a part of the company Metaldyne Oslavany, with a nominal force of 2 000 tons and a height of 7 meters in a series of 100 000 pieces per year.
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Production of high pressure hydraulic filter housing
Podloucký, Lukáš ; Lidmila, Zdeněk (referee) ; Císařová, Michaela (advisor)
The Bachelor’s thesis is focused on solving the problem of production of high-pressure hydraulic filter by cold extrusion technology. The initial semi-finished product is a C15R steel cap with a diameter of 104 mm and a height of 57.9 mm. The production series assumes a quantity of 30,000 pieces per year. The technologicality of the product evaluation was based on technical literature knowledge and professional experience. The technological process was chosen subsequently. This process counts with the extrusion in two operations with mid-operational recrystallization annealing and with the use of surface treatment by phosphating and soaping. An Eitel 1 250 press with a nominal forming force of 12 500 kN is designed for the production. The design of the forming tools takes into consideration the shape of the extrusion, technological principles and mathematically verified safety. The material of the die and punch is high-speed tool steel 19 830. The material of the ejector it is high-alloy tool steel 19 437. The technological process and force calculations are verified by simulation of the forming process created in the Simufact Forming program.
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Manufacturing of a Pin
Glatter, Jiří ; Forejt, Milan (referee) ; Řiháček, Jan (advisor)
The work presents a proposal for the technology of production of a pin of gear assambly.The pin is used to position the wheel in a tapered roller bearing. Pin is made of 11 320.3 steel (11 320 5R), which is suitable for cold forming. Based on the study of cold forming and calculations, the methods of upsetting and extrusion were chosen. Most often, several methods are used for fabrication, which are mediated by a combined tool. It can also be made by any of the machining methods.
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Effect of alloying elements and texture on plastic deformation of extruded magnesium alloys
Horváth, Klaudia ; Dobroň, Patrik (advisor)
This work is focused on the study of the relationship between microstructure, texture and deformation mechanisms in aluminum-free magnesium (Mg) alloys. Extruded alloys containing zirconium, zinc, manganese and neodymium (ZK10, MN11, ZN11) in a form of rectangular profiles were deformed at room temperature. Uniaxial tensile and compression tests were performed in the extrusion (ED), transversal (TD) and normal direction (ND). The concurrent acoustic emission (AE) measurement was used in order to study the collective dislocation dynamic and the nucleation of twins. The deformation texture was studied by X-ray diffraction on samples deformed in compression up to different stress levels.
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Production of socket wrench
Kryštof, Marek ; Forejt, Milan (referee) ; Císařová, Michaela (advisor)
This thesis propses the design of production of a socket wrench. A socket wrench is used as safety wrench for loosening safety screws of the car wheels. The proper technology for production was chosen based on the component requirements. The component is made by using metal extrusion and heading. The starting blank for metal forming was chosen steel rod made of 1.7131 steel (ČSN 14 220) with a diameter of 26 milimeters. The safety wrench will be made by doublecrank press GTX-300H. Production will be done in three operations.
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Productin of injector holder
Štys, Michal ; Řiháček, Jan (referee) ; Císařová, Michaela (advisor)
This paper presents a design of the production process for the clamping nut by cold extrusion. The nut, which is made of material ČSN 12 050, is used to clamp the injection nozzle to the injection system. Subsequently different variants of production were processed, from which the variant B was chosen. For slug a rod with diameter size of 24 mm with toleration f9 made by the company Ferona a. s was chosen. Calculations of process parameters were made for this variant. Based on the parameters the automatic forming machine TPD 630 with nominal force of 6 000 kN was chosen. For the selected machine, operational tools were designed for each forming operation, whose geometry is shown in the drawing documentation. Based on the technical and economical evaluation, the final price of the formed part was set at CZK 18,48.
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Production of coupling pin
Pátek, Martin ; Řiháček, Jan (referee) ; Podaný, Kamil (advisor)
In this thesis there was designed a technological procedure of production of the coupling pin. As a material was selected low alloyed, construction steel 27MnCrB7-2. From the analysis of susitable methods was selected bulk forming technology, on which is focused theoretical and practical part of the thesis. There was designed the production in three forming operations, which were also devided to two steps because of enervation of plastic properties. Before both steps, there was done heat and surface treatment. For all operations there was designed a special tool, only the clamping parts are universal. The first step will be implemented on hydraulic press Schüler p200 with nominal force 20 000 kN and the second one on mechanical press Krupp p63 with nominal force 6 300 kN. For extruding dies and punches was selected material 19 436 with subsequent heat treatment by the technical documentation. Overall costs of the whole batch are 17 733 870 Kč. With 30% margin these costs are deleted by the 43 945 finished pieces and after this it is only profitable.
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Line for manufacturing parts for car engine volume thermoforming
Smola, Jiří ; Tůma, Jiří (referee) ; Omes, Jiří (advisor)
The aim of this diploma thesis is to design valve production line for combustion engines by volume forming with heat. The production of line will be 2 500 000-10 000 000 pieces per year. In the introduction of this thesis are described production technologies. Next part is about design of production lines and description of each machine for each technology. Then are made the basic calculations for designe for each machine.
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Bulk forming technology of pin connector
Kříbala, Milan ; Šlais, Miroslav (referee) ; Forejt, Milan (advisor)
The Bachelor’s thesis deals with the production of the coupling pin cold bulk forming with focus heading and extrusion. The part will be made of structural steel 11 320 5R. The size of the production is about 700 000 piece per year. The two processes was chosen for four forming operation. From the technological calculations were set forming by force 465 kN needed to select a suitable forming machine. Automatic machine TPM 8-A was elected due to force 1000 kN. The drawing documentation is part of the work. Extrusion tools are made of tool steel 19 830. One piece costs 0,6 Czech crowns – this calculation was in the technical-economic assessment.
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Production of the screw
Starý, Petr ; Podaný, Kamil (referee) ; Císařová, Michaela (advisor)
The bachelor´s degree project deals with the production of rotating component using cold forming technology. There are described basic principles of technology, used material, tools and machines and the area of usage. Production of the screw is based on the literary studies and technical calculations. The suggested manufacturing variant consists of five steps and containing cutting, extrusion and upsetting. As raw material was chosen a wire with diameter of 12,5 mm and length of 38,6 mm made of steel 12040. For chosen variant was made technological and strength calculations for the individual operations.
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