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Production of the valve seat
Kraval, Jiří ; Lidmila, Zdeněk (referee) ; Žák, Ladislav (advisor)
This project developed within the bachelor studies of B-STG submits a proposal of a production technology of saddle valve made of EN AW – ALMG3 material. Based on a literary study of the problem of cutting, drawing and calculations manufacturing of the component in a production die was suggested. The production die uses a normalised component and is tightened on LEN 63C eccentric press (produced by ŠMERAL Trnava), with nominal drawbar pull 630 kN. The conclusion of the thesis deals with the economic benefit of the suggested manufacturing technology.
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Uses of a cutting die in the manufacturing process
Důrek, Milan ; Žák, Ladislav (referee) ; Lidmila, Zdeněk (advisor)
The bachelor’s thesis elaborated as part of a bachelor's degree of the branch mechanical engineering submitted a proposal of use cutting technology in the manufacturing process. The specified component is a tine and it is made of abrasion resistant and high-strength steel. The tine is produced in a series of 200,000 units / year. The first part of the thesis is pointed to technology of material cutting. For this technology a literature summary was made including a description of the requirements for the calculation of shearing machines and tools. In the second part, cutting tool was chosen based on technological calculations. For this instrument has been chosen crank press LKJA 1000 with a nominal force of 10 000 kN. The study evaluate the economic comparison of laser and cutting tool.
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Forging of the "lock-bolt"
Frýdl, Pavel ; Štroner, Marek (referee) ; Lidmila, Zdeněk (advisor)
To lock-bolt manufacturing was selected technology of die forging. Lock-bolt is made of 11375 steel in a series of 2700 pieces per year. With the use of literary studies and practical knowledge has been developed technological process fittings. It includes the draft instrument stainless steel 19663 including drawings. Forging is performed on a hydraulic-pneumatic hammer KJH 2 with a nominal value of 20 kJ impact work. Blanks are cut from bars 30 mm 6 m long to bars 52.2 mm long. The techno-economic evaluation shows that the price of a forging is 4,71 CZK and for production will be need 24 pieces of bars.
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Production of the fixing element
Hřebíček, Robert ; Jurenka, Vladislav (referee) ; Lidmila, Zdeněk (advisor)
Fixation element consolidates filtration cage to filter. For production of this element 3 mm thick steel 11 373 was used. The production is estimated to 24 000 pieces per year. From many different possible production technologies the method of cutting followed-up by bending was chosen. Since it is impossible to implement these methods into one tool it is carried out step by step. For all steps the construction and technological calculations were carried out and from them templates were formed. For production was used company equipment (press LEXN 100C, shears NTE). Also production costs were calculated and annual profit was graphically represented. The production is profitable since 16 843 pieces are made per year.
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Forging of a hinge eyebolt
Puklický, Vladimír ; Štroner, Marek (referee) ; Lidmila, Zdeněk (advisor)
Bachelor thesis developed in the bachelor degree addresses the production process eyebolt combination of the two technologies volume thermofotming. Forging the forging and die forging slug for making the final shape of the part. Eyebolt will be produced in a series of 5,000 units / year of structural steel ČSN 11 375.1 with a carbon content of 0.2 % C. The material is supplied in the form of round bars with a diameter of 135 mm and a length of 6000 mm . From this it will be cut smaller pieces using a 172 mm long industrial scissors ScKU 800 Based on the literature study and fitting the calculations was chosen for forging hammer KHZ 4 A from Šmeral Brno as and drop forging hammer with the designation L 9 mg in 2040 by a French company Bché . Semi-finished product is heated in a gas chamber furnace RKG 08.9.03-12 with an output of 600 kW. Forging the trimming on the trim press LKOA 200th Dies are made of tool steel DIN 19 663.
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The manufacturing of component from wire
Pecinová, Hana Elisabetha ; Lidmila, Zdeněk (referee) ; Peterková, Eva (advisor)
Project elaborate within bachelor's degree, present design production of components called "fan". Component is made from rod diameter 4 mm, of material ČSN 41 1343. Based on the literature study of issues bending and roll bending were performed some of calulations and for others was developed sugestion. Further was designed hand-operated machine for forming- bending and roll bending. For this hand-operated machine was drawn tracing documentation of completation and selected parts. Machine is primaly designed for solved component, but it can be used universally for stock part of small dimensions. In the end was carried out economic balance for production of machine and component.
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Precision forging
Berka, Martin ; Peterková, Eva (referee) ; Lidmila, Zdeněk (advisor)
This bachelor´s thesis deals with the technology of precision forging. The thesis describes basic distribution of the forging according to the nature of the material flow and his procedure. After the introductory part this thesis deals with the analysis of the methods of the drop forging with fin groove. The next section contains a description, parameters and methods of precision forging. Technical a economical evaluation of the component technology is as a conclusion of the thesis.
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Manufacturing of dice
Doušek, Martin ; Lidmila, Zdeněk (referee) ; Podaný, Kamil (advisor)
The advertising (playing) dice is used for playing games and concurrently as promotional device to showing up company in the process of transfer events in full view of the public. The element is made of a structural steel 11 373, the production series are 5000 units per year. Produced component has a lenght of 220 mm, a width of 165 mm and a thickness of 1,5 mm. The variant solution was as optimal technology selected combination of rolling cutting followed by three folds in three separate instruments. It were made technological and structural calculations of which were devised tools, for which was made a basic drawing documentation. For production from total deformation force was chosen eccentric press S 250 with rated energy 2 500 kN. In the next step were fixed costs to produce one piece with the production of a advertising dice with energy, wages and material is 12,75 CZK.
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Production of sleeper screw
Bartošek, Filip ; Štroner, Marek (referee) ; Lidmila, Zdeněk (advisor)
Bachelor thesis developed in the bachelor degrees addresses technological process of the production sleeper screw. The production uses technology volume thermoforming. The project was elaborated in cooperation with the company ŠROUBÁRNA KYJOV s.r.o. The screw will be made from material ČSN 11 503. This material is unalloyed construction steel with property of weld. Based on the literature study technology volume thermoforming was chosen tamping in closed instrument for the production of head screw. For the production of screw-thread was chosen technology of rolling. For the production head of screw was chosen horizontal fitting press machine. After the production there were used surfacing by galvanic zinc coating because of the better corrosion resistance.
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Production of lamp cover
Tóthová, Romana ; Lidmila, Zdeněk (referee) ; Podaný, Kamil (advisor)
Project dissertate about manufacturing of lamp cover of steel 13 200 in serie 43 000. After comparing all the alternatives how to make the product , was choose a method of convention deep drawing. Product is manufactured in one operation. Design of apparatus using as standardized, so special parts. It is fitted in hydraulic pressing machine CTC 25. Functional parts are made from tool steel 19 191. Costs of production was calculated on 15,21 crowns a piece. From 26 173 manufactured pieces will the production gainful.
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