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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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Rationalizaton technology of production solid 14.037.270
Lačňák, Martin ; Osička, Karel (referee) ; Prokop, Jaroslav (advisor)
This thesis deals with the rationalization of the existing body of machining 14,037,270 for five-axis CNC machine HERMLE C20U with Heidenhain control program. The work is focused mainly on streamlining the production of holes in the part. In the introduction technology is developed, which was created by Elakov. Based on analysis of existing housing production technology, new tools have been selected and designed a new technology. By consolidating all of the results efficient and economical production alternative was designed.
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Solution technology of two groove guide pulley production.
Šimonek, Ondřej ; Sedlák, Josef (referee) ; Kalivoda, Milan (advisor)
Technology deals with the production of the two - groove guide pulley for two types of semiproducts. Technological process of production solves the production of the guide pulley from the first gripping of semiproduct to handing over of the guide pulley to the warehouse. Semiproducts are two types of castings with different separating plane. The material of the guide pulley is always gray - cast iron ČSN 42 2420. Production method is cutting operation with CNC machines. The production uses tools with interchangeable cutting tips. The aim of this work is to find the most optimal method of production from both time and economic perspective and to compare the two variants.
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Cylinder unit of motocycle two-stroke engine
Stejskal, Miroslav ; Novotný, Pavel (referee) ; Píštěk, Václav (advisor)
Miroslav STEJSKAL Cylinder unit of motorcycle two-stroke engine In the beginning is briefly described two-stroke engine features. Furthermore, according to the set of basic geometric and thermodynamic parameters, the maximum pressure in the cylinder during one engine cycle. For the selected operating modes are carried out strength tests of the upper piston and connecting rod eye. In conclusion, the results are evaluated.
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Analysis and usage of hi - efficient drilling tools.
Malát, Jan ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
General description of drilling instruments and cutting materials for high-powered drilling. Subdivision of those parts by constructional, technological and economic parameters. Analysis and subsequent comparison of particular drilling instruments, made by well know home and foreign producers with recommendation for theirs effective exploitation in use.
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Agricultural Tractors Catalogue
Musil, Vojtěch ; Svída, David (referee) ; Dundálek, Radim (advisor)
Tabled catalogue contains a selection of tractors available at Czech distributors of agricultural technics. The tractors are divided into seven groups by engine power at intervals from 32HP for low-end operations such as gardening or orchard management, above 150HP for routine application, to 446HP for the most difficult usage.
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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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