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Manufacturing of a jet half coupling
Ostřížek, Jan ; Štroner, Marek (referee) ; Řiháček, Jan (advisor)
The work deals with the design of the production of a jet half coupling made of aluminum alloy AlMg1Si1Mn. At the beginning of the work is an analysis of possible production methods, of which the most suitable method of die forging. Based on the evaluation of technological technology, shape adjustments are made, additions and dimensional deviations are selected. A semi-finished product 50 x 108 mm is determined from the forging volume. The crank press LZK 1600 P / SH is chosen for forging. According to the standards, 2 forging and 1 finishing dies are designed for the forging. At the end of the work is also given an analysis of cutting, on the basis of which the press LKOA 200 is chosen.
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Piston rod eye production
Hořava, David ; Jopek, Miroslav (referee) ; Lidmila, Zdeněk (advisor)
The bachelor's project elaborated design of technology production of the piston rod eye in series of 45 000 pieces. The piston rod eye is made of steel rod C45E by die forging. Pursuant to of the literary pursuit and necessary technological calculations was chosen a pneumatic – hydraulic hammer KHZ 4A, from the company called Šmeral, with a forming energy of 50 kJ, for forging of component. Cross wedge rolling machine was chosen for overdosage of forged piece in form of double piece. Shearing press LKOA 200, from the company called Šmeral, with a forming force of 2 000 kN, was chosen for shearing of forged piece. At the end, the technical – economic evaluation of material costs was calculated.
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Producing of artillery shell
Moravec, Zdeněk ; Forejt, Milan (referee) ; Lidmila, Zdeněk (advisor)
The diploma thesis deals with the technology of production of the body of an artillery shell caliber 155 mm from C60 steel. The part is manufactured in series of 100,000 pieces. Based on a literature study and materials, a technological procedure of drop forging was designed, taking into account the specific shape of the forging. The volume of the starting blank and the forming force were determined. A suitable forming machine was selected based on the magnitude of the forming force. The design of tools for punching operations and reduction diameters of sets of rollers for forging stretching was also performed. In the technical and economic evaluation, the material costs for the production of the entire series were quantified.
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Design of wheel hub production
Zahálka, Tomáš ; Lidmila, Zdeněk (referee) ; Podaný, Kamil (advisor)
The subject of this thesis was to propose a possible way of production for a wheel hub on the front axle of VAZ 2101 made out of steel 12 050. Based on the accesible technologies was selected a volume thermoforming technology, specifically drop forging for its positive impact on mechanical features of forging. Construction of the die cnforms to the norm ČSN 22 8308 with closed spout groove. The forging is done by a hammer KHZ 8A, with an impact energy of 80 kJ. Dies, upper and lower, made of tool steel 19 552, tempered to 54 HRC.
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Forging oblong forgings
Chudý, Jan ; Štroner, Marek (referee) ; Lidmila, Zdeněk (advisor)
This bachelor´s thesis is focused on design of technological production procedure of front wheel-drive arm of agricultural machine. Material for construction of this part is unalloyed steel 12 060. Part of this thesis is literall study focused on forging. On basis of this study is designed required forged piece, which will be processed by swaging on hammer KHZ 4A. After swaging is needed removal of excess material in form of burr and stencil with trim pressing machine LKOA 200. Swadge is made of alloyed tool steel 19 662. Part of thesis is mechanical drawing documentation and technical-economical assessment.
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Production of weapon conclusion
Diviš, Adam ; Forejt, Milan (referee) ; Lidmila, Zdeněk (advisor)
The thesis deals with the design of technology for production of weapon conclusion by die forging. The weapon conclusion will be made of C45 steel in series of 500 000 pieces per year. Before forging, the base semi-finished product will be treated using cross-wedge rolling technology. Thanks to the chosen production process, the forging will be made as four pieces. A simulation of the forging process was made for the created design. Results of a simulation showed that metal did not fill entire hollow. Based on these results was made changes in design and the simulation was performed again. According to the results of the second simulation, the hollow has already been filled with metal. For the forging was chosen the machine LZK 2500P from Šmeral a.s with a nominal force 25MN. In the conclusion there was a technical-economic evaluation of costs for the material required for production of entire series.
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Analysis of a Forging Process of the Jaw Turnout Lock Hook
Barták, Jan ; Štroner, Marek (referee) ; Řiháček, Jan (advisor)
The thesis is focused on optimalization of jaw turnout lock hook forging process which is used in rail transport and is forged from steel of 13 240 grade. Production process of the hook, that is being used in Královopolská kovárna s.r.o. company now, leads to fold defect in the inner side of curved part formation. Conditions of the folds formation were defined using the numeric simulation of this process in Simufact Forming software. After that improvements such as change of semi-finished product size, change of geometry of ancestor shape, bending tools and forging die were made according to linear study of this problematics. These volumetric and geometric changes were verified using the simulation in software and relocation defect did not appear.
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Design of wheel hub production
Šidlák, Filip ; Jopek, Miroslav (referee) ; Podaný, Kamil (advisor)
The thesis deals with the design the technology production of wheel hub for the automotive industry made of C45 steel. After the evaluation of suitable technologies, a die forging on a mechanical press was selected. On the basis of technology analysis, the component shape was modified, all allowances and dimensional tolerances were set. According to calculated forming force, the crank press LZK 3150B with nominal force 31, 5 MN from the manufacturer Šmeral Brno, a. s., was chosen. Manufacturing is divided into two operations, pre-forging and after that final forging. Design of dies is based on the ČSN 22 8306 standard and they are made of tool steel of grade 19 552 with the subsequent heat treatment. The dies have upper and lower ejector for easier removal of the forged piece.
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Design of robotized workplace for die forging
Krejčí, Radek ; Zavadil, Radek (referee) ; Podaný, Kamil (advisor)
The thesis deals with the design of technology for production of wheels to be manufactured by die forging 15 142 low-alloy steel at an amount of 500,000 items per year. Based on a consideration of the suitable methods of manufacture, die forging on a Jing Duann FP-1600G vertical forging press was chosen as the best, as documented by the necessary technological and design drawings. A die with inserts made of 19 552 steel was designed for this machine. In view of the volume of annual production, a fully automated workplace was designed consisting of three robots and a chain and pan conveyor. In the conclusion there was a technical-economic evaluation of costs for the material of the semi-finished products and price of dies for annual production.
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Manufacturing of pin with flange
Procházka, Pavel ; Řiháček, Jan (referee) ; Podaný, Kamil (advisor)
The bachelor thesis is focused on the design of the towing hitch, which is used in the tractor. The component will be the production of a die forging technology made of low-alloy steel 13 242. The material is supplied as hot-rolled bars with a diameter of 60 mm and a length of 6 000 mm. The size of the production series has been set at 25,000 pieces per year. Due to the issue and the size of the forging, the component will be made on a power hammer. The machine Šmeral KHZ 8A, appears to be a suitable machine as the forging work was calculated at 89 kJ. The technical - economic evaluation takes into account material costs, which amount to 1,364,271 CZK. The die is made of tool steel 19 663, its purchase price is 73 000 CZK.
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