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Productive Machining of Titanium Alloys
Čejka, Libor ; Humár, Anton (referee) ; Píška, Miroslav (advisor)
The aim of the thesis is to analyze the production costs and optimize cutting conditions for high-feed face milling of titanium alloy Ti6Al4V. In the experiment were changed cutting conditions, such as cutting speed vc and feed speed vf. During the experiment were checked cutting forces by dynamometr. Furthermore, surface roughness and tool wear is observed.
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Construction design of woodworking machinery
Doležal, Martin ; Pavlík, Jan (referee) ; Holub, Michal (advisor)
This thesis deals with designing woodworking piece of machinery for thicknessing technology, surfacing planer, cutting and mortising, which are combined by changeable adapters. Thesis cointains a survey of selected woodworking machinery and technologies. It also provides an overview of safety rules for manipulation with woodworking machines and also safety features the machinery must comprise. The technical evaluation is included.
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Design of cutter head with Harmonic-Drive application
Tkadlec, Dušan ; Dosedla, Michal (referee) ; Holub, Michal (advisor)
This master´s work deal with design two axis cutter head with possible variants drive of axis. The part of this work is also technical– economics valuation of single variants, calculation torque and force from motor head and design taking head in two axis. Cutter head should be applicated to boring and cutting headstock given to type with posibility of adaptive exchenges spindle.
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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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Drilling technology solution in the maintenance center of small firms
Huňáček, František ; Mouralová, Kateřina (referee) ; Kalivoda, Milan (advisor)
The basic characteristics of the drilling technology, view of tools for drilling, descriptions of the parts and angles of twist drill are described in the first part of this project. In the second part of this project there are descriptions of various drilling technologies, the choice of cutting conditions and the choice of cooling and lubricating emulsions and oils. The range of tools, machinery and clamping equipment in the workshop machinery maintenance sugar factory in České Meziříčí are described in the next part of the project. Also specific technological conditions for the production of precision holes (with a use of a calculator) was determinated. After that their production was performed. In the end the possibilities of production machinery maintenance workshops during production of holes using drilling tools are shortly valorized.
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Cutting force analysis when drilling with twist drill
Hon, Pavel ; Humár, Anton (referee) ; Píška, Miroslav (advisor)
Theoretical part of this project contains basic characteristics of drilling technology, shows summary of drilling technologies and tools used for drilling, detailed description of twist drill, forces and loads analysis when drill, twist drill stress analysis. In experimental part of this project there are some investigations on twist drill geometry CZ001 made by company NASTROJE CZ, s.r.o. Cutting edge geometry and web thickness is measured on 3D scan of this drill and the results are compared to conventional products. Course of moment of cutting and course of thrust force is done by experiment where the recessed hole was drilled. Course of both loads is compared to long-term results on conventional drills. As application of the achieved results the cutting force position is calculated and stress and deformation analysis is performed.
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Stroje a nástroje pro řezání dřeva
Ševčík, David
The bachelor thesis is focused on the woodworking machines tools specifically for saw blades. The first part contains a brief description, division of chips possible angles of saw teeth and saw blade. The next section describes clamping, blunting process, proper maintenance of tool and pedagogical principles. For technical interpretation of the parameters is supplemented with a suitable image. This work is a proposal for the measurement of cutting forces in laboratory exercises.
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