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Effective milling of stainless steels using octagonal inserts
Kouřil, Petr ; Sedlák, Josef (referee) ; Zemčík, Oskar (advisor)
Thesis aims on efficient milling of stainless steels. Groups of these steels are characterized and their machinability is analyzed in theoretical part of this thesis. In the practical part of thesis were face milled stainless steels ČSN 17 240.4 a ČSN 17349.4. There are evaluated edge durability, roughness of surface, loading of total cutting force and effectiveness of test tools.
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Impregnation of stainless steels for the conditions of oversea sailing
Chára, Tomáš ; Kalina, Lukáš (referee) ; Zmrzlý, Martin (advisor)
This thesis deals with temporary corrosion protection of stainless steel for the conditions of oversea sailing. At first the theoretical part describes types of the stainless steels focusing on their corrosion resistance and negatively or positively impacts affect of their resistance. There is also a proposal of methods of the temporary corrosion protection and testing its effectiveness. The recherché are summarized knowledge in testing resistance of stainless steels to pitting corrosion. The task of the study was to test the effectiveness of three different preservatives and comparing the quality of their temporary corrosion protection compared with unprotected chemically passivated stainless steels.
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Metallography of stainless steels
Hasoňová, Michaela ; Kalina, Lukáš (referee) ; Zmrzlý, Martin (advisor)
This thesis deals with metallography of stainless steels. At the beginning of theoretical part the history of metallography is shortly summarized. Then the basic knowledge about metallography, ways and methods of preparing samples for subsequent analysis of structure are resumed. There are also summarized methods for examining the macrostructure and microstructure of materials with a particular focus on stainless steels. The literary-search section summarizes recent advances in the study of the structure of materials using methods of metallography. The task of the study was to find suitable composition of etchant to reveal the structure of stainless steels in order to achieve high quality and especially reproducible results.
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Arc welding of stainless steels for demanding working conditions
Matějíček, Josef ; Hála, Michal (referee) ; Kubíček, Jaroslav (advisor)
Bachelor thesis introduced deals with Arc welding of stainless steel. With welding technology, used by company DIAMO, the connected pipes, flanges and plates are for guiding the Sodium Sulphate solution, which is obtained as by-product in production of Uranium. Corrosive attack and weld cracking occurs in the short period of time due to the chemical reaction. Based on information about materials, used additional materials and welding technology used I have evaluated materials with susceptibility to the corrosion and the formation of hot cracks. Using tests and calculations I have examined the susceptibility of austenitic stainless steel to intergranular corrosion. Austenitic-ferritic stainless steel was also used as a theoretical solution for larger spectrum of materials. After calculations and evaluations of the trial tests I have conducted discussion and recommendations for use in practice.
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Metal Biocompatible Materials
Stejskal, Pavel ; Němec, Karel (referee) ; Molliková, Eva (advisor)
The bachelor’s thesis deals with metal biocompatible materials, their chemical composition, heat treatment, final mechanical properties and possibilities of application of these materials. Basic terms and separation of the biocompatible materials are explained in thesis introduction. Next there are outlined a historical side and main reasons of development of these materials.
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Shoulder milling of stainless steels
Holeček, Václav ; Kalivoda, Milan (referee) ; Humár, Anton (advisor)
The bachelor thesis talks about sholder milling of stainless steel. The first part deals with the general thesis including shoulder milling with the of division milling tools. Further stainless steel is described including its machinability. The main part is analyses mills for shoulder milling made by world´s producers, which are finally eva-luated from differen points of view.
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Stainless steels
Chára, Tomáš ; Kalina, Lukáš (referee) ; Zmrzlý, Martin (advisor)
This thesis deals with stainless steels. The theoretical part describes the mechanisms and types of corrosion. Then the thesis deals with the properties, distribution and manufacture of the stainless steels and a brief description of the XPS method used for the practical part. In the recherche section summarizes the ways of using the XPS method for determining the quality of the passive layer of stainless steels eaten in different environments. Practical task was to compare the quality of the passive layer of stainless steels resulting from natural and chemical passivation.
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Progressive anticorrosive metal materials
Bombera, Mojmír ; Kaňa, Václav (referee) ; Šenberger, Jaroslav (advisor)
This bachelor thesis is aimed at stainless steels problem. At the beginning history of steel and one of the biggest issue of steel, corrosion is described. Next part show basic type of stainless steels, their material characteristic, properties and possibilities of usage. After that metallurgy of stainless steels and process follows. In last topic of this bachelor work samples of usage in various branges are presented.
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Machining of stainless steels
Perončík, Martin ; Dvořák, Jaromír (referee) ; Humár, Anton (advisor)
Bachelor thesis is specialized to solving of problems of stainless steels machining. There is carried out the analysis of stainless steels in term of marking, chemical composition, physical and mechanical properties. In the following it deals with analysis of machining, spe-cification of geometry and material of cutting tools and cutting conditions.
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