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Design of Tool for Louvers Production
Hejna, Jaroslav ; Žák, Ladislav (referee) ; Řiháček, Jan (advisor)
This thesis presents a tool design for production of embossments into the bottom part of the agricultural silo made of Dx51D material. The research analysis all technologies used for embossing, that is cutting and shallow drawing. This is followed by a chapter on simulation. The tool design itself is described. Its principle is based on tools for punching machines. The upper half of the tool is composed of a weldment to be clamped into pressing machine, into which are mounted functional parts in the form of inserts. The lower tool consists of several bolted plates, punches and a holding plate, which is located on the springs. In order to achieve correct design, necessary calculations were carried out and it was all confirmed by simulation in ANSYS. The two tool halfs are guided by pins attached at the edges of the lower tool. The technical - economical evaluation compares the work of the proposed tool with other possibilities of embossing.
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CNC Applications in Forming Processes
Pobořil, Martin ; Jopek, Miroslav (referee) ; Řiháček, Jan (advisor)
This thesis presents the study on CNC control and its usage in forming processes. It analyses the main elements which are essential for functionality of computed numerically controlled processes. It also comprises the basics of CNC programming and related software programmes. Individual technologies of forming are covered in terms of fundamental principles. Subsequently the technologies are described in relation to the CNC control – in theory and also the specific examples of machines and software programmes are given. The thesis considers advantages and disadvantages of each technology and its suitability for use in given application.
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Study of the deformation of the circular holes in relation to their spacing from the bend in the two-point bending of the sheet on the bend press
Piterka, Miloslav ; Řiháček, Jan (referee) ; Mrňa, Libor (advisor)
The thesis is focused on studying deformation of the circular holes in the limit bending space, depending on the material type, distance from bend, the thickness of material and diameter of hole. After analyzing all necessary technological parameters was bending technology on press brake selected. An experiment for which the tools and press brake Trumpf TruBend 5170 were selected was designed and performed. Samples for the study were designed, bent and measured. The charts have been prepared for practical use in the company from measuring. In addition, simulations were processed in Ansys program and graphs were compiled to compare the main effect of the hole deformations. Two methods were chosen to prevent deformation in limit bending space. Under-cutting method by laser and method of using special Rollbend tool. In the end, economic studies for the Rollbend tool were developed instead of under-cutting hole with grinding.
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Proposal of production technology of trough
Rérych, Pavel ; Staněk, Vojtěch (referee) ; Podaný, Kamil (advisor)
Elaborated thesis presents a proposal of technology for the production of modular. The modular is manufactured by ACO Industries k.s. from stainless steel 17 240 with thickness 1.5 mm. Literary studie is focused on Bending as the most favorable technology with respect to tender documentation. Based on technological calculations and available machinery TruBend 5130 press with nominal force 1 300kN was selected for part manufacturing process. Forming tools are made of Cr - Mo tool steal. The thesis also includes technical and economic evaluations.
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Proposal of parts manufacturing for air industry
Koula, Vojtěch ; Valášek, Petr (advisor) ; Brožek, Milan (referee)
The aim of the thesis is making the design process for the production of parts for the aerospace industry by bending. Forming technology is the perspective of manufacturing technology, what has frequent use in the aerospace industry. Part of this thesis is the experimental finding of maximum possible ram speed on press brake machine during bending of small radius to prevent cracking. Bending was performed on the press brake and possible cracks of the material were check by capillary fluorescence testing. These knowledge were applied in the design process for the manufacturing of parts and there was provided economic evaluation.
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The Production of the Components on the Press Brake Machine
Zahradníček, Lukáš ; Řiháček, Jan (referee) ; Peterková, Eva (advisor)
The project elaborated overview of the production technology of the components on the press brake machines. It is based on study of theoretical pricniples in literature and modern practical instances as added value. It discussed about bending technology in general, about its priciple and parameters. Then there is overview of most used methods of bending at press brake. bending tools, its process of production and tool clamping. The main emphasis is placed on press brake machines. There are discussed the main types of machines, structure of machine and last but not least there are presented selected world manufaturers of press brake machines. For a better idea there is showed production of particular component in manufacturing plant in the end. Acquisition of the project is in simple description of press bending technology and way of work on press brake machines. The useful trasfer may be for example to education.
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Manufacturing of fireplace insert exchanger
Běhounek, Martin ; Staněk, Vojtěch (referee) ; Podaný, Kamil (advisor)
This master’s thesis deals with a proposal of production technology of a fireplace insert. Based on various solutions of production and documented calculations, charring has been elected as the most optimal technology. According to the requirements of thermal resistance and weldability the component will be made of boiler metal plate 11 416. Based on checking and technological calculations process of charring on press BAYKAL APHS 3110x180 has been proposed with the nominal power of 180 tons. The verification of bends was realized using computer simulations. Bending tools are made of steel 12 050. A technical-economic evaluation is also part of this master’s thesis.
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Construction design hydraulic press brake
Stránský, Jaroslav ; Holub, Michal (referee) ; Pavlík, Jan (advisor)
This thesis is divided into several chapters. First two chapters after introduction are written as search type. In next part I devoted to detailed design of functional mechanisms of linearly moving parts of press brake. For the construction of stop mechanism I dealt with conversion types as ball screw, pinion with rack and timing belts. There is also quite thorough calculation part in ball screw and pinion with rack issue. I have also dealt with the necessary bending force and then designed hydraulic cylinders. Elaboration of machine frame with safety features is included.
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Searches press brakes
Volejníček, Martin ; Bilík, Martin (referee) ; Pavlík, Jan (advisor)
The goal of my thesis was to create an integrated classification of press brakes. Introduce advanced press brakes and their basic specifications. Bending is a very common way of forming. Production bent part of a waste-free and economical. Modern hydraulic press brakes allow quick and precise production. Automated bending cells achieve high productivity.
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Searches press brakes
Vavrúš, Tomáš ; Bilík, Martin (referee) ; Pavlík, Jan (advisor)
In facilitating the production and increasing the efficiency of production go more to the forefront of press brakes. The aim of my thesis is familiar with the current state of press brakes. Create a complete classification used hydraulic press brakes.
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