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Cemented carbides
Vaněk, Mojmír ; Dvořáček, Jan (referee) ; Humár, Anton (advisor)
The aim of this bachelor thesis is a characteristic of uncoated and coated cemented carbides in terms of marking, structure, physical and mechanical properties. There is an overview of production methods of uncoated, coated cemented carbides and functionally graded hardmetals in the thesis. At the end there is an overview of the range of production of the most significant tool material producers including descriptions and areas of use of this materials.
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Analysis of the coated carbide cutting inserts
Zdráhala, Radim ; Kolář, Ladislav (referee) ; Fiala, Zdeněk (advisor)
Bachelor thesis is focused on the analysis of the cutting and specific cutting forces during face milling of coated and uncoated exchangeable cutting inserts (VBD). The theoretical part deals with the characteristic of the milling process, coating of cemented carbides and last but not least deals with methods for measuring cutting forces. The experiment is described in the experimental part that also includes evaluation of load forces coated and uncoated exchangeable cutting inserts during changes in cutting conditions. Finally is performed the comparison of values coated and uncoated VBD for flank wears and load cells.
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Optimization of indexable inserts use in production line
Kocúrek, Ondřej ; Novák, Zdeněk (referee) ; Humár, Anton (advisor)
This thesis deals with a summary of different types and characteristics of coatings used for increasing the lifetime of cemented carbide tools. Besides, the thesis includes solving the issue regarding edge chipping during machining interrupted pipe ends at the pipe line, selecting a new type of indexable inserts and indexable inserts holders to increase line productivity and decrease tool costs in the related operation.
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Cemented carbides
Vik, Michal ; Sámelová, Vendula (referee) ; Humár, Anton (advisor)
The goal of the submitted thesis is to bring out the new knowledge about the cemented carbides, their production, properties and coating. Last but not least, this thesis analyses the latest offered assortment of cemented carbides by selected manufacturers of tools and tool materials.
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Cemented carbides and theirs effective use
Salajka, Jaroslav ; Sedlák, Josef (referee) ; Humár, Anton (advisor)
The aim of this thesis is a complex processing of obtained technical findings in the area of cutting materials, especially the evaluation and comparison of work possibilities recommended by prime world manufacturers for effective usage and application of coated and uncoated cemented carbides. Characteristics of cemented carbides in terms of production, marking method, physical and mechanical properties and application. Comparison of cemented carbides in the range of production of the most significant world tool and cutting material producers. Cutting efficiency evaluation of the tool. Recommended areas and operating conditions for effective usage of cemented carbides and their technical economic evaluation.
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Progressive turning tools
Franc, Aleš ; Jaroš, Aleš (referee) ; Kalivoda, Milan (advisor)
The bachelor’s thesis is focused on progressive turning tools. The beginning of the study deals with history and development of turning tolls. Next part deals with the tool geometry. The following description of the different tool materials, construction tools and distribution, analysis of major companies and their catalogs. At the end the procedure of the selection of the tool holder and indexable cutting insert is given.
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Optimalization of cutting process for machining of aluminium profile on CNC centre
Král, Ondřej ; Fiala, Zdeněk (referee) ; Jaroš, Aleš (advisor)
This master‘s thesis deals with the suggestion of suitable tools for milling aluminum alloys profiles for the construction of aperture fillings and their aplication to a CNC machining center for increasing the efficiency of the cutting process. The first part of the thesis is focused on the description of the company and the workplace of production of aluminum alloys constructions. The following pages contain description of standardized products, which are used to identify the test profile that is part of the experimental verification. Next part of this thesis is characteristic of aluminum alloys and tool materials suitable for their machining. Second part of this work contains an analysis of the current state, suggestion of new cutting tools and their application to the production proces. At the end of this thesis there is the technical-economic evaluation that deals with the time and economic savings of the applied design.
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Solution wear of tool with inserts in condition technology of turning.
Kružík, Petr ; Humár, Anton (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis analyzes wear occurrence at chosen tool inserts in the process of turning of a heat treated cylindrical workpiece. Inserts for turning have been chosen from the area of coated and non-coated cemented carbides and cermets with respect to the used type of workpiece material. The work further deals with the possibility of their use under cutting conditions that are set to the upper cutting limits from the recommended range, especially without cooling. To obtain detailed information, the conditions of the test are further modified. Then, the results are also evaluated from the point of view of costs, i.e. market prices of inserts for possible application in the manufacturing process.
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Technological, economical and ecological aspects of mist lubrication
Tlapák, Michal ; Sedlák, Josef (referee) ; Píška, Miroslav (advisor)
The assessment of MQL technology application in reaming process was elaborated in this diploma work. The evaluation of energy intensity was carried out in terms of specific cutting force during reaming of austenitic stainless steel work piece by using HSS reamers. The comparison of economic costs in the case of the application of MQL technology in production was made. Confrontation of oil mist removal principles. At the conclusion the evaluation of ecological benefits for the environment and the positive influence on the working environment cleanness was defined.
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