|
|
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.
|
|
| |
|
|
New methods for outer rotary surfaces finishing.
Bartošík, Luděk ; Janský, Milan (referee) ; Zemčík, Oskar (advisor)
This bachelor thesis deal with technologies of finishing rotate surfaces, describe individual methods, their advantages and disadvantages and results on quality of surface. It describe older and new technologies and too conventional and unconventional methods. Here is overview of most used and best know technologies in present engineering.
|
|
|
Analysis of machining finishing methods
Urban, Martin ; Chladil, Josef (referee) ; Osička, Karel (advisor)
This diploma thesis deals with the analysis of finishing machining methods. The work describes the technologies of grinding, honing, lapping, polishing, tumbling and superfinishing. Furthermore, the residual surface tension after the superfinishing method is analyzed and two possible methods of its measurement are described. An experiment was also performed in which the finishing processes for the bearing spherical roller for axial spherical roller bearing 29434EJ-3, the bearing spherical roller for double row spherical roller bearing 23164CJ-3 and the inner bearing ring for double row spherical roller bearing 22224EKJ N7-2 were described. Six surface roughness measurements were then performed on the surfaces of these components. For the 23164CJ-3 barrel, the mean arithmetic deviation Ra of the profile ranged between 0.59 and 0.70 µm, for the 29434EJ-3 barrel, the Ra value ranged between 0.26 and 0.31 µm, and for the 22224EKJ N7-2 inner bearing ring, between 0.22 to 0.28 m.
|
|
|
Design of the finishing machine for rolling bearing's elements
Cagaš, Radek ; Křenek, Miloš (referee) ; Košťál, David (advisor)
The thesis deals with the design of the device that is used to improve the quality of the surface of spherical rollers. Spherical rollers are used for the measuring of the conditions in the EHD contact. The high roughness and waviness of the spherical rollers’ surface is a problem. Several machining methods are described in the theoretical part. The overview in theoretical part has been used for choice of the machining methods (lapping and abrasive polishing). The spherical rollers‘ machining system, its construction, electronics and control systems are described in the next section. The last part is focused on testing of assembled device, and on checking its functionality. The desired roughness of the spherical rollers' surface, suitable for successful interferometric measurement, was achieved by combining the selected machining methods. The roughness and waviness achieved was Ra0.01 micron Wa0.022 microns.
|
|
|
Modern cutting finishing methods of outer surfaces
Laňka, Lubomír ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
This master`s thesis is focused on modern cutting finishing methods of outer surfaces. In the first part the cutting finishing technologies of outer surfaces are analysed, which is followed by a description of modern finishing methods from the fine machining up-to the nano-machining. The experimental part includes the analysis of surface roughness during front turning of a dural disc and the study of magnitudes of forces during its longitudinal turning. The thesis contains technological-economic evaluation of the achieved results.
|
|
|
Production of the Cylinder into the Injection Unit
Lexa, Josef ; Fiala, Zdeněk (referee) ; Kalivoda, Milan (advisor)
This work mainly focuses on the manufacture of the cylinder of injection unit as one of the two major components to the element and the injection unit to the injector pump before and after the heat treatment relative to the two alternatives of production, concentrating on the alternative of production on machining center. There are mentioned as the subsequent and finishing operations such as well as final assembly including mounting with a functional commissioning into the pump. There is also mentioned a production of samples of cylinder of injection unit, the proposals for improving and ecology of the whore production.
|
|
|
New methods for inner rotary surfaces finishing
Kazdera, Tomáš ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
Content of the text deals with the methods of finalizing the internal surfaces of revolution. The paper discussed the theory most widely used machining methods that are commonly used in engineering practice. For each methods, are given the tools achieved surface roughness and geometric tolerances. The instruments are assigned to the machine on which the finishing operations are undertaken.
|
|
|
Modern cutting finishing methods and their use
Vičar, David ; Polzer, Aleš (referee) ; Píška, Miroslav (advisor)
This thesis deals with a summary of today's methods of finish machining and their inclusion in modern engineering production. It primarily focuses on technological characteristics of some basic methods - conventional and also unconventional. Furthermore, the thesis deals with machinery and tools used in these technologies, the advantages and disadvantages of various methods and their achieved parameters.
|
|
| |
guest ::
