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Analysis of Circular Bars Shearing Process
Dohnalová, Eva ; Hůlka, Jiří (referee) ; Foret, Rudolf (advisor)
In these days customers require a high quality as well as precision of products together with a cost that is as low possible. The cost of products can be reduced in a way of batch production. Implementation of the batch production requires a detailed plan of a technological process to avoid making depreciated products or series of products. A software package can be used to simulate the technological process of shearing to avoid difficulties of particular technological process. This bachelor paper contains analysis of technological process of shearing of circular section rods. The results of the analysis are going to be included in FEM simulations. The effect of the technological process of shearing on material was determined by optical and scanning electron microscopy method. The microhardness measurement was used to analyse the deformation hardening of the examinated material.
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The manufacturing of level indicator by fineblanking process
Polák, Pavel ; Šlais, Miroslav (referee) ; Peterková, Eva (advisor)
The project elaborated in frame of engineering studies branch 2307. The project is submitting design of technology production of the extract - section from the deep drawing sheet iron 11 373.1. Pursuant to of the literary pursuit a problem of the deep drawing and calculation was designed drawing in instrument with holder. The lower ejector is using for extrusion component. The drawing instrument make use of standardised components and it is solving forms of customary stool close-set on the crank drawing inclinable press LEN 63 C (producer APJ Praha), with nominal tensile force 630 kN. Drawing punch and drawing die are produced from alloyed instrumental steel 19 436.9 (POLDI 2002), heat-worked according to drawing documentation.
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Labour protection of forming machines
Šknouřilová, Eva ; Špaček, Jindřich (referee) ; Peterková, Eva (advisor)
This bachelor thesis presents an overview of the principles of safe work in forming operations. There are listed the basic principles of safety of persons who have responsibility for forming machines, or machinery coming into contact. Further bachelor thesis includes a description of the features of the forming machines and refers to the personal protective equipment.
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Polyurethanes in forming technology
Špičák, Pavel ; Podaný, Kamil (referee) ; Peterková, Eva (advisor)
The work carried out within the framework of Bachelor's study presents the exploration of the facts on the theme: „Polyurethanes in forming technology. It consists of the schedule, characteristics and in other part analyzes different methods of the forming which use a polyurethanes as an elastic instrument.
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Expanding of tube ends
Riesner, Jan ; Šlais, Miroslav (referee) ; Peterková, Eva (advisor)
The project is elaborated within frame of bachelor´s studies of branch B2341-3. The project is submitting a summary of methods used for expanding of tube ends. In the first part on the basis of the studies of this problem there was created a set of methods which are used for expanding of tube ends. These methods are divided into three elementary parts according to the technology of production. Next part of this project describes modern methods in use. It is namely expanding of tube ends by radial jaws and method of expanded and towards the end renarrowing figures on the tube ends. In conclusion of this thesis there is treatise on quality checking of expanded tube ends and leakage test.
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The manufacturing of coating metal sheet part
Sykáček, Jiří ; Hušek, Martin (referee) ; Císařová, Michaela (advisor)
SYKÁČEK Jiří: Production of a sheet metal part with a surface finish This project, elaborated as a part of my B2307 bachelor studies, has been compiled on the basis of a customer requirement to produce a battery cover exposed to an increased corrosion risk. It deals with the production technology of the part using various sheet metal materials of different surface finish. The most suitable solution has been found in using a cutting and a bending press. The chosen production method has been evaluated with regard to technological difficulties connected to processing thus modified sheet metal as well as with regard to economical cost of the production. Forming processes have been executed using a TRUMPF TC200R cutting press, having a nominal shearing force of 165 kN, and URSVIKEN Optiflex bending press, having a nominal pressing force of 1300 kN. Forming tools are optimally chosen according to the parameters of individual types of sheet metal. At the end the project evaluated the most convenient material to produce this part.
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Sheet metal part manufacturing by drawing
Moravec, Jiří ; Podaný, Kamil (referee) ; Peterková, Eva (advisor)
The project developed in the frame of the bachelor study branch B2307-00 presents a proposal of acreation technology of a flange, which is to be a model of the roof lift. The part is made of steel 11 320. Due to the anticipated serial production of 10 000 pieces per year, a number of production options is considered. On the basis of literary studies of the issue of drawing, it is suggested a drawing by a metal tool with blankholder. Due to calculations of tensile strength and work, press LEN 40 C is suggested. Drawing tool is designed to require the most of standard components and is solved through the form of a normal rack fastened to the eccentric press LTN 40 C. Drawing punch and drawing die are made of tool steels 19 436.3 and heat-processed according to the drawing documentation.
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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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