National Repository of Grey Literature 20 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
Use of modern technologies in the production of flat sheet metal parts
Kohoutová, Zuzana ; Podaný, Kamil (referee) ; Špaček, Jindřich (advisor)
The final work elaborated in the scope of master's studies of the branch 2303T002 submitted use of modern technologies in the production of flat sheet metal parts from the material 11 373. Work is set for cold shaping of metal by means of cutting. Production on sequence shearing tool is based on series 350 000 pieces per year. Universal hydraulic press CUPS 63 DEU with shearing force 630 kN is selected for realization. Work is also focused on the production of the same components using plasma, laser and water CNC equipment and the subsequent economic evaluation of all variants of the production. In enclosure there is drawing documentation for cutting tool.
Production of sample of the plasma cutting machines
Klepárník, Ivo ; Slaný, Martin (referee) ; Kalivoda, Milan (advisor)
The main focus of this thesis is on plasma cutting. In this thesis are considered the pros and the cons of plasma cutting technology. Furthermore it focuses on the construction of a plasma cutting machine and the selection of appropriate components for positioning as well as cutting. It concludes with the general problematic of construction of such a machine and also a detailed technological process of manufacturing two components.
Proposal for the production of variants of flat sheet metal parts with holes
Chaloupková, Lucie ; Peterková, Eva (referee) ; Špaček, Jindřich (advisor)
The final work elaborated in the scope of bachelor studies of the branch B2307-00 submitted variants of production for flat sheet metal parts with holes. In work there are two variants of production of one particular part namely: Production on sequence shearing tool and production by means of plasma CNC machine. Particular part is designed for quantity 120 000 pieces per year. Shearing machine S250 with shearing force 2500 kN is selected (manufacturer Smeral a.s.Brno). In the work there are implied necessary calculations for both variants including economical evaluation and criteria for practically implementation.
Proposal for the production of variants of flat sheet metal parts with holes
Kohoutová, Zuzana ; Podaný, Kamil (referee) ; Špaček, Jindřich (advisor)
The final work elaborated in the scope of bachelor studies of the branch B2307-00 submitted proposal of variants for production for flat sheet steel parts with holes from the material 11 373. Work is set for cold shaping of metal by means of cutting and production by means of plasma CNC machine. Production on sequence shearing tool is based on series 150 000 pieces per year. Shearing machine S250 (manufacturer Šmeral Brno a.s.) with shearing force 2500 kN is selected for realization. Work is also focused on the production of the same components (valve) using a CNC plasma equipment and the subsequent economic evaluation of both variants of the production. In enclosure there is drawing documentation for cutting tool.
Effect of a plasma torch jet wear on a newly incurred surface while using PBM technology
Mudra, Ondřej ; Osička, Karel (referee) ; Slaný, Martin (advisor)
This bachelor thesis deals with methods of thermal cutting, describes them briefly and compares them. For more detail plasma arc and the impact of operational parameters on the quality of the cut and on the lifetime of consumables are described. The experiment is concerned with the influence of the plasma torch nozzle and electrode wear on the cut quality. Finally there are mentioned some construction solutions to increase the lifetime of the nozzle and electrode.
Plasma cutting by TransCut 300.
Bergauer, Radek ; Hála, Michal (referee) ; Kubíček, Jaroslav (advisor)
The thermal parting by plasma is progressive technology of material cutting. There is a new method based on the plasma stabilization by the steam, beyond common systems with gas stabilization. The potentialities of cutting by steam stabilized plasma are tested and the results are compared with regular gas plasma in this diploma thesis.
Suggestion of convenient technologies of production for submitted flat sheet metal part
Chaloupková, Lucie ; Podaný, Kamil (referee) ; Špaček, Jindřich (advisor)
The project is elaborated in frame of engineering studies branch 2303T002. The project is submitting suggestion of convenient technologies of production for submitted flat sheet metal part 11 375. There are proposed a number of variants of production method, namely: production on sequence shearing tool, production by means of plasma machine, laser machines and machines for watejets cutting. Particular part is designed for the production quantity of 380 000 pieces per year. Based on the literary study of the shear and calculations, there were designed shearing tool for given part. For this tool the press CDCH 3000 P was selected (producer HESSE+CO Maschinenfabrik GmbH), with nominal force 3 000 kN. In the work there are included necessary calculations for all variants including technological and economical evaluation.
Plasma cutting of high strength steels
Šmak, Martin ; Herčík, Tomáš (referee) ; Kubíček, Jaroslav (advisor)
Cutting of steel is one of the fundamental operations within steel processing and steel product manufacturing. The cutting of high-strength steels represents a significant technological problem since the application of many methods produces an extensive amount of heat that is introduced into the material. The heat may significantly impact the mechanical properties of the steel. The thesis is focused on the application of the method of plasma cutting on high-strength steels. In the theoretical part of the present thesis, the common methods of cutting of steel and the plasma cutting technology are described. The parameters influencing the process of plasma cutting and their impact on the quality of the section are discussed. Furthermore, the concept of a heat-affected zone in the context of the plasma cutting method is concerned. The experimental part deals with the influence of plasma cutting on the hardness of certain types of high-strength steels. Three types of high-strength steels were used for the experiments: ARMOX 500 T, STRENX 650 MC E, and XAR®450. The sections were performed with two different cutting speeds. The size of the heat-affected zone and the hardness in the different areas of the section were evaluated. The results show that the plasma cutting is suitable for cutting of high-strength steels if appropriate parameters are selected. The influence of this method on the mechanical properties of certain high-strength steels is shown and discussed.
Solution technology of cooling tower component
Dobiáš, Radek ; Kubík, Roman (referee) ; Kalivoda, Milan (advisor)
The content of this diploma thesis is solution of production technology of cooling tower component. A model the cooling tower according to customer specifications is designed. There are selected 2 plates from steel construction that will be machined by plasma cutting. The technology of production of the plates is also proposed. Technical and economic evaluation of production compares 2 versions of plate production using unconventional metal cutting methods.
Analysis of plasma cutting
Hauzarová, Michaela ; Mrňa, Libor (referee) ; Kubíček, Jaroslav (advisor)
Method of cutting material by plasma is constantly evolving and increasingly used technology. Plasma is used from small manual cutting devices to smart fully automated system. This technological study describes the technological principle of plasma cutting, properties of plasma in comparison with the other most common methods of material separation systems and presents CompleXX, the global program using m3 plasma system.

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