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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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Analysis of durability and costs of monolithic milling and drilling tools
Kašpar, David ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis deals with the durability of different types of monolithic drilling and milling tools made of high-speed steel and sintered carbide. The theoretical part deals with durability, possible types of wear of monolithic drilling and milling tools and related circumstances. The practical part examines the durability of different types of tools for drilling and milling, their comparison in terms of cost and productivity of machining and their impact on production costs in the production of a simple part.
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High-Speed Steel Mills with PVD coatings and their Use
Žilák, Marek ; Fiala, Zdeněk (referee) ; Jaroš, Aleš (advisor)
This bachelor thesis "Mills from high-speed steel with PVD coatings and their use" deals with tool materials and their distribution (mainly high-speed steel). The problem of high-speed steels is analyzed (their distribution, properties and uses, chemical composition and finally heat treatment). Then the characteristics of the coating methods (mainly PVD) is analyzed. The conclusion of this work is focused on the types of spray coating and the responsibility of the high speed steel mills and their use in current practice.
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Modern methods in drilling.
Kodys, Martin ; Kalivoda, Milan (referee) ; Zemčík, Oskar (advisor)
This Bachelor’s thesis deals with modern methods in drilling. In the first part, the drilling methods are divided, followed by each method description and practical usage. The second part is devoted to the way of orientation in products of couple most significant producers of drilling tools.
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New Milling HSS Cutters for Roughing Operations
Jaroš, Aleš ; Janáč, Alexander (referee) ; Chladil, Josef (referee) ; Píška, Miroslav (advisor)
Dissertation thesis is focused on development, design and production of the new milling cutter which is used for roughing operations. High-speed steels, coating technology and milling technology are described in first chapters of dissertation thesis. The main part of this thesis is the design of the new milling cutter that has been designed on the basis of the machining simulation. The milling cutter is designed as a three-flute cylindrical end mill made of high speed steel. The each flute is composed of two special compensation edges. The compensation edges are used for reducing (at best suppression) tensile stress in the heel of the tooth. The milling cutter was made by lost wax technology, followed by grinding and thermal treatment. New designed tools were deposited by PVD coatings (e.g. (Al,Ti)N). Standard catalog milling cutters (producer ZPS - milling tools, Zlín, Czech Republic) were used for comparison the designed milling cutter. Carbon steel CSN 41 2050 (DIN 1.1191) was used for milling, which was carried out with using process liquid. The monitored parameters were force loading, flank wear and tensile stress during milling. The dynamometer Kistler was used for measuring force loading and data obtained during machining was used for stress analysis.
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Solution milling with CNC machine.
Chlup, Martin ; Madaj, Martin (referee) ; Kalivoda, Milan (advisor)
Bachelor´s thesis includes the solution of production technology of the motor´s stator. It also solves the problem of substitutive production when the serious production is stopped. Technology of series production was used by company Hanakov, inc. It also refers to functional possibilities of tools and machines at shaping the motor´s stator.
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Analysis of durability and costs of monolithic milling and drilling tools
Kašpar, David ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis deals with the durability of different types of monolithic drilling and milling tools made of high-speed steel and sintered carbide. The theoretical part deals with durability, possible types of wear of monolithic drilling and milling tools and related circumstances. The practical part examines the durability of different types of tools for drilling and milling, their comparison in terms of cost and productivity of machining and their impact on production costs in the production of a simple part.
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New Milling HSS Cutters for Roughing Operations
Jaroš, Aleš ; Janáč, Alexander (referee) ; Chladil, Josef (referee) ; Píška, Miroslav (advisor)
Dissertation thesis is focused on development, design and production of the new milling cutter which is used for roughing operations. High-speed steels, coating technology and milling technology are described in first chapters of dissertation thesis. The main part of this thesis is the design of the new milling cutter that has been designed on the basis of the machining simulation. The milling cutter is designed as a three-flute cylindrical end mill made of high speed steel. The each flute is composed of two special compensation edges. The compensation edges are used for reducing (at best suppression) tensile stress in the heel of the tooth. The milling cutter was made by lost wax technology, followed by grinding and thermal treatment. New designed tools were deposited by PVD coatings (e.g. (Al,Ti)N). Standard catalog milling cutters (producer ZPS - milling tools, Zlín, Czech Republic) were used for comparison the designed milling cutter. Carbon steel CSN 41 2050 (DIN 1.1191) was used for milling, which was carried out with using process liquid. The monitored parameters were force loading, flank wear and tensile stress during milling. The dynamometer Kistler was used for measuring force loading and data obtained during machining was used for stress analysis.
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High-Speed Steel Mills with PVD coatings and their Use
Žilák, Marek ; Fiala, Zdeněk (referee) ; Jaroš, Aleš (advisor)
This bachelor thesis "Mills from high-speed steel with PVD coatings and their use" deals with tool materials and their distribution (mainly high-speed steel). The problem of high-speed steels is analyzed (their distribution, properties and uses, chemical composition and finally heat treatment). Then the characteristics of the coating methods (mainly PVD) is analyzed. The conclusion of this work is focused on the types of spray coating and the responsibility of the high speed steel mills and their use in current practice.
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Modern methods in drilling.
Kodys, Martin ; Kalivoda, Milan (referee) ; Zemčík, Oskar (advisor)
This Bachelor’s thesis deals with modern methods in drilling. In the first part, the drilling methods are divided, followed by each method description and practical usage. The second part is devoted to the way of orientation in products of couple most significant producers of drilling tools.
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