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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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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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Forming technology production of window hanger.
Štejnar, Radek ; Šlais, Miroslav (referee) ; Forejt, Milan (advisor)
An objective of the bachelor’s thesis is the solution of forming technology production of window hanger by means of backward extrusion and elaboration of study concerning cold bulk forming. Required component is made of material ČSN 41 1320 5R and rounded chock with dimension of 14,6h9 - 25,3 mm is selected as semifinished product for production. Generally 2 alternatives of technology process were assessed whereas technological and strength calculations are executed utilizing computing support of TVÁŘENÍ and OPTIM97 software. Component is produced within 4 operations including cutting of wire. Multi-stage cold forming press TPZK 25 made by ŠMERAL a.s. Brno producer was chosen for designed technology. Production tools are made of high speed tool steel 19830.
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Technology of extrusion
Cháma, Jakub ; Řiháček, Jan (referee) ; Podaný, Kamil (advisor)
This bachelor thesis is a literary study dealing with extrusion technology and is aimed to be used as a study material. There are described basic principles of technology, the division of methods, used materials, machines, tools and the area of usage. The main focus of this work is to depict advantages and disadvantages of extrusion technology and its application in practice, which is supported by the example of usage in one of the Czech companies called Vítkovice Cylinders.
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Bulk forming technology of carrier pin
Sejkora, Petr ; Samek, Radko (referee) ; Forejt, Milan (advisor)
Diploma thesis focus on the proposal of the carrier pin production from the steel 17 021 by cold bulk forming technology with sight on the upsetting and extrusion. There were suggested two versions of the technological plan from which was one chosen as optimal. There were carried out calculation of deformation, forming and deformation resistances and forming forces for the chosen version. Machine for the part TPM 12 production was chosen on the basis of the global forming force 660 kN. Furthermore there were proposed forming tools for the second operation – feed forward extrusion. Finally there was made technical and economical evaluation.
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Manufacturing possibilities in cold forming procesess
Trnka, Filip ; Podaný, Kamil (referee) ; Šlais, Miroslav (advisor)
This project is elaborated in the bachelor's degree field of engineering technology. The main objective of this work is the chosen technology for cold forming their valuation and illustrative examples of products manufactured as follows. There are presented examples of unconventional types of technologies and concludes with a brief overview of companies dealing with cold-forming, with examples of their products and their uses.
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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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Housing production by cold forming
Kouřil, Jakub ; Kunčická, Lenka (referee) ; Jopek, Miroslav (advisor)
The bachelor thesis is focused on the production of a part by cold forming. The subject of the thesis is the design of the technology of production of a housing with a production rate of 6 000 000 pcs/year by extrusion and tamping. The austenitic stainless steel X5CrNi18-10 is used for the production. Based on simulations, the most suitable geometric configuration of the forming operations was selected. The whole production process consists of a first cutting, two forming and a last machining and radnishing operation. Based on the calculated forming force of 175,6 kN and the required power of 425 W, the CHUN ZU CBF-83S automatic forming machine was selected. At the same time, the tool is designed and in the end a techno-economic evaluation is carried out, which also includes the calculation of the piece price considering a 15% profit, which amounts to 1,24 CZK.
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Manufacturing of a connecting pin by cold forming
Koumar, František ; Peterková, Eva (referee) ; Jopek, Miroslav (advisor)
The diploma thesis is focused on the optimization of the production of a rotary connecting pin, produced by bulk cold forming with a focus on upsetting and forward and backward extrusion. The resulting pin will be made of 1.4511 steel. From the three proposed variants of production processes, the optimal variant for four forming operations was selected. Extrusion tools are made of tool steel 19 830. A numerical simulation was performed to verify the suitability of the sequence of the selected variant. The size of the production batch is set at 700,000 pieces / year. In the technical and economic evaluation, the calculated production price of 1 piece of part was coMPared between machining and volume forming, at which the production costs amount to CZK 6,64. The return on this method, with an assumed profitability of 10%, was found for 568 182 pieces produced.
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