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Drilling technology
Vejtasa, Vladimír ; Madaj, Martin (referee) ; Kalivoda, Milan (advisor)
The first part of the bachelor's thesis deals with the problems of drilling, roughing out, reaming and recessing including the used tools. The second part is focused on the presentation of the range of goods of the selected tool companies. The third part deals with the problems of the CNC machines and especially with their programming. In the end of this part there is a demonstration of a NC program which was created for the chosen product.
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Design of a combined tool for holes machining of the universal chuck
Kovář, Matouš ; Fiala, Zdeněk (referee) ; Jaroš, Aleš (advisor)
This master’s thesis focuses on the design of a combined tool for machining holes of a universal chuck. The thesis analyses the component and technologies used for the production of precision holes for pinions in the chuck body. Furthermore, the current production of precision holes is described, including the used machine, tools, cutting conditions and technological process with machine times. In the next part of the thesis, a proposal of more efficient production of precision holes is made accompanied by a design of a combined tool. The design includes its structural treatment, used cutting tool inserts and drill, the method of clamping, used material, the heat treatment, the determination of the cutting conditions and the development of a new technological procedure. The thesis concludes with a technological and economic evaluation, where the existing and the newly proposed technologies for the production of precision holes for pinions in the chuck body are compared.
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On the analyses of cutiing tools coated with PVD coatings
Malý, Martin ; Osička, Karel (referee) ; Píška, Miroslav (advisor)
In this diploma thesis, literary research about drilling and coating technology focused on PVD coatings was performed. Furthermore, there is an overview of cutting materials. In the experimental part of the work, the attention is dedicated to tests of twist drills from cemented carbide and high-speed steel materials. For these drills, the feed force Ff and the cutting moment Mc were measured when drilling into austenitic stainless steel. At the end of this work, the technical and economic evaluation of the practical part is presented.
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Technology of laser machining
Kroupa, Jiří ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
This bachelor thesis is focused on present possibilities of laser cutting. The first part describes basic principles of the laser beam, possibilities of ma-chining of various materials and its use in production. Various types of lasers are introduced, including those developed in the last decade. The performance and quality edge that the laser beam can give you is presented in the next part. The practical part compares laser machining with conventional technology of machining. Final results are evaluated in the last chapter.
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Technology assembling of a part "cage" in a company CCI
Tkáčová, Alena ; Sedlák, Josef (referee) ; Kalivoda, Milan (advisor)
This thesis is focused on techology of manufacturing a "cage" component at CCI Brno company. It solves drilling holes to the outside diameter of it. In the first part the company CCI is introduced, and in the second part is focused on component and material analysis. Next step is analyzing present manufacturing procedures and proposing its change. At the end of this thesis is techno-economic comparison of the present and proposed technological change.
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High-Speed Steel Drills and their Uses
Jaroš, Aleš ; Dvořák, Jaromír (referee) ; Sliwková, Petra (advisor)
This Bachelor thesis, as one can deduct from the title, deals with high-speed steel drills and their uses into practice. The problem of high-speed steel is described step by step from division, chemist to heat treatment. Fundamental features of drilling method and tools that are suitable for drilling are described either. The last part of Bachelor thesis is focused on producers and application of high-speed steel drills to practice.
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Study and comparison of CNC control systems
Nytra, Tomáš ; Vetiška, Jan (referee) ; Bradáč, František (advisor)
The goal of this bachelor’s thesis is to create research of state-of-art of implemented CNC cycles of controll systém. At first the basic problematice of programming numerical control with possibility of own programming. Then the thesis is focused on properties of control systems of companies Beckhoff and Siemens. There are analyzed functions of individual cycles, their features and parametrs, finished with mutual comparison. Ending of thesis is devoted to the development of a macro for two missing cycles of Bekchoff system.
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