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Verification of the properties crimp joint
Horák, Ondřej ; Hruška, Ondřej (referee) ; Lidmila, Zdeněk (advisor)
The bachelor thesis deals with the description of mechanically unbreakable conections, called crimp connection. The most often used materials are copper, brass and bronze. The crimp connections are divided into joints with an open tube, closed tube and crimp isolation. The joint is formed by bending of the parties of the crimp, where a consequent plastic deformation results in a mechanically non-detachable joint. The post production control of the crimp consists of visual inspection, measure of the crimp height, supplementary tearing test and cutting the crimp. No visual defect in testing two types of crimp connections was detected. The measured crimp height corresponds to the values specified by the manufacturer. During the tear test, the desired values were not achieved by incorrectly attaching the wire to the clamping mechanism and no manufacturing defects were detected at the final check of the cut.
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Bulk forming technology of connecting pin
Trnka, Filip ; Šlais, Miroslav (referee) ; Forejt, Milan (advisor)
The project elaborated in frame of engineering studies branch M-STG proposes a technology of connecting pin – structural steel 11 320 5R. The technological calculations were performed and the production procedure was devised on the basic on the literary study of cold bulk forming with concentration on the extrusion and upsetting. Forming machine was design HATEBUR BKA-3 with a nominal power 1800 kN. The component is made in four forming operations. Extruder will be made from tool steel 19 830, extrusion die from tool steel 19 830 and clamp ring from tool steel 19 740.
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Production single parts "Bracket" from sheet metal
Buchta, Petr ; Lidmila, Zdeněk (referee) ; Žák, Ladislav (advisor)
The project which was developed in the framework of a bachelor's degree submits a proposal of production of steel material 11373, shearing and subsequent bending. The main topic of this thesis was to create tools that would allow a simple and inexpensive production of components. Tools have been designed and manufactured on the basis of literary studies issues, associated with shearing and bending. The function parts of the instruments are made of tools steel class 19.
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Simulation of rolling operation using explicit FEM
Bezrouková, Martina ; Zemčík, Oskar (referee) ; Zouhar, Jan (advisor)
The purpose of this work is to introduce explicit finite element method (FEM) and to familiarize with commercial software tools witch are capable to perform simulations. The technological conditions and the scope of application of roller burnishing are described in subsequent part. The simulation model of roller burnishing was created. Software ANSYS LS-DYNA was used to make computations. The results of simulation and technical and economical benefits of roller burnishing are presented in the conclusion.
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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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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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The manufacturing process of the ball joint
Petříček, Vít ; Majerík, Jozef (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis deals with the general introduction of the component "ball joint", its construction requirements and production. Two technological processes for the production of a particular spherical pin were selected and presented, namely the production of a cold-forming and a machining. Both methods are compared with each other and their suitability for serial production is assessed. In the final part there is generally shown the technological process of production of the ball pins of the car control.
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Production of lock screw
Šlimar, Filip ; Lidmila, Zdeněk (referee) ; Císařová, Michaela (advisor)
The project elaborated design of technology production of a screw for fastening of car wheels, made of material 11 320.3. A literary study of cold forming technology was conducted. The blank diameter of 15 mm was calculated. Several possible ways of production were considered and the most suitable option was chosen. The necessary calculations were made for this variant, in which the forming force of 1 313 kN was calculated, which was the main requirement for the selection of the TPZK 25 cold forming machine. Part of the work is a drawing of a tool assembly, ram and die.
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