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Data selection and optimisation of cutting conditions for progressive production technologies of drilling with a step drill
Barák, Vít ; Fiala, Zdeněk (referee) ; Píška, Miroslav (advisor)
The thesis contains theoretical analysis of drilling by twist drill focused on the step drill. The review includes description of the drill geometry, calculation of the basic parameters of drilling, including forces and process optimization. Following is manufacturing process and analysis of the monolithic step drill designed for the required hole parameters. The optimal cutting conditions are necessary to find for the correct function of the tool. The load values of the tool are accurately assessed using a piezoelectric dynamometer, thereby obtaining the overall progress of individual loads. The roughness of the workpiece is evaluated by the optical measuring device.
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Design of production technology of specified component for conditions of workshop at IME FME Brno university of technology
Novák, Lukáš ; Dvořáček, Jan (referee) ; Sedlák, Josef (advisor)
Diploma thesis deals with design and implementation of manufacturing technology of a part which was given by company Frentech Aerospace s.r.o. Manufacturing technology is prepared for conditions of workshop of Department of Machining FME Brno UT (laboratory C2). Acquired knowledges are used for design of innovative manufacturing technology with cutting tools from company Pramet Tools, s.r.o. Manufacturing technologies of gained part are designed for alloy blank EN AW 6082. Technical-economical assessment of all manufacturing technologies is part of this thesis. Both of manufacturing technologies designed for laboratory C2 are assessed together and manufacturing technology given by company Frentech Aerospace s.r.o. is assessed alone due to using different blank material.
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Machining of quenched steels
Kosmák, Jaroslav ; Zemčík, Oskar (referee) ; Chladil, Josef (advisor)
Diploma thesis deals with machining of hardened steels. In the introductory section it is described the physical process of cutting and basic used technologies of machining. The next chapter provides an overview of cutting materials. Other chapters deal with the workpiece material and heat treatment. Furthermore, there is made a comparison of the cutting conditions while machining of hardened steels by tools from selected manufacturers. As the conclusion there is the economic evaluation.
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Technological conditions application superhard material
Jelínek, Adam ; Kalivoda, Milan (referee) ; Prokop, Jaroslav (advisor)
Diploma thesis is intended on the aplication of superhard cutting material which contain polycrystalline diamond and cubic nitro nitride boron. There are solved area of using superhard cutting materials, optimal cutting conditions, technilgic – economic view and reached parameters during cutting (roughness, geometric tolerance). The aim of this is to define what are an achieved parameters
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Coated cemented carbides and their effective use
Pavlovský, Tomáš ; Dvořáček, Jan (referee) ; Humár, Anton (advisor)
This thesis deals with coated cemented carbides, which are used for the manufacture of cutting tools. The introductory section provides an overview of the most common tool materials. The main part focuses on the production of coated SK, coating methods, types and properties of coatings. The final section deals with coated cemented carbide product range in the world's leading producer of tools and tool materials, tools and recommended working conditions for their effective use.
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Cutting ceramics and its effective use
Heča, Jan ; Sámelová, Vendula (referee) ; Humár, Anton (advisor)
Thesis dealing with cutting ceramics and its efficient use. Introduction describes the general characteristics of the cutting of ceramics, its history and development and production of various kinds. This section describes the mechanical and physical properties with potential application in machining. The se-cond part is an overview of cutting-frame in the range of selected world leaders. Ano-ther section focuses on general assessment of the power of cutting tools and other ma-terials comparison. The fourth part, is comparing the working conditions of producers and tools intended for cutting.
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Superhard cutting materials and their effective use
Teplý, Radek ; Sedlák, Josef (referee) ; Humár, Anton (advisor)
Diploma thesis is focused on the superhard cutting materials (polycrystalline diamond, polycrystalline boron nitride) and presents their physico-mechanical properties, production, efficient use, new trends. It assesses the range of cutting tool materials and individual front world producers in terms of optimum cutting conditions for turning operations and type of material to be machined. Further, these cutting materials are compared between different manufacturers to bring out thein differences in cutting conditions.
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