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Analyssis of conventional technologies for sawing.
Kašpar, Ladislav ; Osička, Karel (referee) ; Zemčík, Oskar (advisor)
In this work is a survey of conventional method of cutting of material used on common technological routine processed.Principle, used instruments, which are disposed and described in detail and example of used machines and its basic technical parameters are mentioned in each way of material division.In the end examples of aplications of these methods in production practise and summary of advantages and disadvantages of its use is mentioned.
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FEM for machining simulation
Vojtek, Aleš ; Madaj, Martin (referee) ; Zouhar, Jan (advisor)
The introduction to turning basics, chip separation process, cutting force generation and description of the finite element method. With this knowledge, a cutting simula-tion of AISI 1045 steel was done for 3 different rake angles, which was simplified by using an orthogonal machining model. The next simulation was cutting of AISI 6150 steel with the use of a 3D model of the grooving insert. The results of these simulations were then compared to the experimental results, and feasibility of finite element method was determined together with future recommendations for acquiring more pre-cise results.
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Modern cutting tools for grooving and cutting-off
Axmanová, Hana ; Humár, Anton (referee) ; Píška, Miroslav (advisor)
The presented diploma thesis is divided into two parts. The theoretical part deals with modern catting tools for grooving and cutting-off, choice of material of catting inserts, and with types of tool wear and their classification. The second part of the thesis deals with calculation of volumetric wear of catting tool for grooving. There was measured the power load of the new and worn tool in the experimental part and the observed data were evaluated by software. The graphs of power load and volumetric wear of tool were created.
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Cemented carbide tool materials
Bil, Miroslav ; Humár, Anton (referee) ; Kalivoda, Milan (advisor)
Main goal of this bachelor thesis is the introduction with characteristics of tool materials and assessing their fitness for use in machining operations. The thesis also deals with the parting-off tools, blade geometry issues, a general overview of the tool material group of cemented karbide cutting tools and their properties. There is a mention of overview of companies and world development.
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Modern cutting tools for grooving and cutting-off
Matoušek, Jan ; Fiala, Zdeněk (referee) ; Píška, Miroslav (advisor)
The thesis in question deals with the influence of geometry of the cutting tool with a non-null angle r and of the cutting conditions on change of cutting tool’s overall deformation during the process of cutting-off and grooving. When conducting the experiments the loading of cutting tool was measured, there was created a simple 3D model of the cutting tool based on measured data, the deformation analysis of the cutting tool by the simulation programme ANSYS was performed and on the grounds of established facts there was made a conclusion on attributes of the cutting tool during the process of cutting-off and grooving.
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Wear analysis of replaceable inserts in parting of structural steels
Drbal, Martin ; Vítek, Jiří (referee) ; Sedlák, Josef (advisor)
This thesis deals with the analysis of wear of replaceable cutting inserts in turning technology. For the experiment three variants of replaceable cutting inserts were used, all from the manufacturer Dormer Pramet s.r.o. These cutting inserts were used for the successive lapping of two different materials. These were bearing steel ČSN 14 109 and stainless steel ČSN 17 349. The thesis contains a theoretical part which is devoted to turning technology and wear theory. The experimental part describes the cutting test procedure, measurements and analysis of the data obtained. At the end of this thesis, additional analyses are performed to reveal the reasons for the variability of some results.
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Modern cutting tools for grooving and cutting-off
Matoušek, Jan ; Fiala, Zdeněk (referee) ; Píška, Miroslav (advisor)
The thesis in question deals with the influence of geometry of the cutting tool with a non-null angle r and of the cutting conditions on change of cutting tool’s overall deformation during the process of cutting-off and grooving. When conducting the experiments the loading of cutting tool was measured, there was created a simple 3D model of the cutting tool based on measured data, the deformation analysis of the cutting tool by the simulation programme ANSYS was performed and on the grounds of established facts there was made a conclusion on attributes of the cutting tool during the process of cutting-off and grooving.
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Modern cutting tools for grooving and cutting-off
Axmanová, Hana ; Humár, Anton (referee) ; Píška, Miroslav (advisor)
The presented diploma thesis is divided into two parts. The theoretical part deals with modern catting tools for grooving and cutting-off, choice of material of catting inserts, and with types of tool wear and their classification. The second part of the thesis deals with calculation of volumetric wear of catting tool for grooving. There was measured the power load of the new and worn tool in the experimental part and the observed data were evaluated by software. The graphs of power load and volumetric wear of tool were created.
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