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Grinding machines of current production
Kűhnel, Martin ; Holub, Michal (referee) ; Blecha, Petr (advisor)
The work dissert description of present trends in the field of grinding machines on the basis of large-scale retrieval and secondly the presentation of their usage in nowadays manufacturing. The bachelor’s thesis shows the latest technologies which are used for grinding machines, their advantages and nowadays divisions. There is an outline of basic calculations for layout of grinding machine drives in the conclusion.
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Modern methods in spur gearing production.
Kopečný, Libor ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
The division and comparison of modern methods of production of spur gearings. The introduction is focused on the characteristics and description of cog wheels. Furthermore, the types of gearing and gear mechanisms are introduced. The main part of the text deals with individual ways of a production of spur gearings including finishing methods. The following part of this work describes the importance and possibilities of heat and chemical-heat gearing production. In the last chapters, the evaluation and achieved results of individual technologies of gearing production are introduced.
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Modern methods in cog - wheel finishing.
Nikl, Michal ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
This thesis is aimed at finishing gearing method problem. Thesis contains particular finishing methods analysis including machines, tools and accuracy achievements. There is cutting medium analysis and suitability of cutting fluids to each method. In resume there is general evaluation.
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Technological parameters of abrasive process
Řehák, Pavel ; Bumbálek, Bohumil (referee) ; Prokop, Jaroslav (advisor)
In this work, there is described an abrasive process including technological terms with an identification of motions and a speed of grinding.Then there are described abrasive tools, their distribution and description. In the last part there are introduced some reached parameters of the accuracy and characteristics of the surface structure in dependence on the length of abrasive process.
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Roller burnishing tools in engineering.
Henzl, David ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
This bachelor work deals with chipless technology of roller burnishing and tools with bearing on roller burnishing of circular orifices and back-to back surfaces. In the first part of the work elementary conections concerned with finishing and hardening of machine components by roller burnishing are explained. In the next part the classification of tools produced by German company Baublies AG is realised. In the following part there are examples of roller burnishing method utilization in the machine industry. Hereafter, the technical – economical evaluation and comparation with conventional methods of finishing such as lapping, honing, superfinishing, polishing, grinding, core – drilling and reaming, boring work, diamond burnishing and shot peening is realised. In the conclusion of the work the assumptions for the future are given.
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Description of outside grinding machines
Brychta, Tomáš ; Opl, Miroslav (referee) ; Blecha, Petr (advisor)
In this bachelor’s thesis is completioned background research and outside grinding machines description.In the introduction of this thesis are shown the aims which will be reached while elaborating. This thesis includes general introduction about grinding, where is mentioned definition of the grinding, description and grit distribution on grinder, parametres of grinders, reached geometric accuracy, reached surface roughness, cross section of cuttings, definition of the main and alternate movement and cutting conditions on the tool and on the workpiece at grinding.Furthermore general partition of grinding machines types, view and the parting of the grinding machines producers, with the references to their web sites and with data about country of origin for each of these producers. After it the thesis focus only on outside grinding machines and in their division. In centre grinding machines is shown their division and characterictics, ways of grinding and description of each way and there are shown producers of centre grinding machines with concrete tips of machines too. In each of this machine are shown its preferences and engineering characteristic. In profile grinding machines is shown its characteristic, producers of profile grinding machines and tips of these machines. In surface grinding machines is shown characteristic of surface grinding, the partition of the surface grinding machines, ways of grinding and description each way, producers of these grinding machines and tips of separate machine with its preferences and engineering characteristic. The last type of the outside grinding machines are centreless grinding machines. There is shown characteristic of centreless grinding, ways of grinding and the description each of the way, producers of centreless grinding machines and tips of these machines with its description and engineering characteristic. By the centreless grinding are shown even the ways of double disk grinding with the examples of utilization this grinding. The work is ended by finish, where is shown overall assessment in the way of grinding machines development, resources and innovations, which the producers using to increasing precision of the machines.
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Description of gear-producing machines
Jelínek, Petr ; Pavlík, Jan (referee) ; Blecha, Petr (advisor)
The bachelor´s thesis summarises knowledge from area of gear producing machines aimed on gear generating machines. It describes types and principles of gear generating machines. The main target of the thesis is to make an overview above this problems and summarize the classic and modern ways in the development of gear generating machines.
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Výroba a vlastnosti vrtáků
Kukla, Jan
The bachelor work is based on a survey of the production and basic characteristic of the production and properties of drills in the company, which deals with the total production of drilling tools. Five-axis CNC tool grinders are able to achieve high precision processing with a wide range of different types of materials. Hardness, toughness and heat resistance of drill bits are specified prefabricated bore material (aluminium, stainless steel, etc.), the geometry of a cutting edge drills (Mitsubishi, Gühring, "RDS", etc.) and the type of the coating (TiAlN, AlCrN, ArTiN, CC Alu speed, etc.), or processing of the surface (nitriding, blackening).
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