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Diamond wheels and their use in the stone industry
Skryja, Jan ; Kolář, Ladislav (referee) ; Jaroš, Aleš (advisor)
This bachelor thesis deals with stone sawing during stone processing. It is divided into theoretical and practical parts. In the theoretical part diamond blades, the sawing process and stone extraction are described. The practical part is focused on the wear of circular saws in granite circular sawing. The wear is determined for two diamond cutting blades made by different manufacturers and is determined by the blade weight loss and segments height loss as a function of time. Both measured values show linear dependence. The results are the basis for a future comparison of the two diamond blades on the economic side, which is not the subject of this work.
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Analysis of complete method machining
Daumer, Tomáš ; Kolář, Ladislav (referee) ; Osička, Karel (advisor)
The work deals with analysis of complete methods machining. In this publication focuses on characteristics of some basic complete methods and results on quality of surface. The publication presents machinery and tools used in these technologies, their advantages and disadvantages. The last point is a practical demostration honing barells and evaluation of the experiment.
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Analysis of the coated carbide cutting inserts
Zdráhala, Radim ; Kolář, Ladislav (referee) ; Fiala, Zdeněk (advisor)
Bachelor thesis is focused on the analysis of the cutting and specific cutting forces during face milling of coated and uncoated exchangeable cutting inserts (VBD). The theoretical part deals with the characteristic of the milling process, coating of cemented carbides and last but not least deals with methods for measuring cutting forces. The experiment is described in the experimental part that also includes evaluation of load forces coated and uncoated exchangeable cutting inserts during changes in cutting conditions. Finally is performed the comparison of values coated and uncoated VBD for flank wears and load cells.
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Production technology of the pivotably head cover
Uličný, Roman ; Kolář, Ladislav (referee) ; Osička, Karel (advisor)
This bachelor thesis deals with the production technology of the part of a set assigned by the customer in the engineering company focusing on a unit production. The assigned unit is produced on four machines: saw, lathe, vertical three-axis milling machine with adjustace fourth axis and console milling machine. The manufacturing process is mainly supported by CAD/CAM softwares Spaceclaim and Edgecam.
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Rationalisation of drilling technology
Rozum, Josef ; Kolář, Ladislav (referee) ; Osička, Karel (advisor)
Master's thesis focus on the rationalisation of the holes drilling technology in the bearing rings which are defined for wind generators. This work contains review of drilling tools, analysis of the current state and proposal of rationalising precautions. Rationalising precautions are focused mainly on the adequate choice of the drilling technology and applied tools. The most suitable option was chosen for the drilling of holes according to the economical evaluation.
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Production technology of a part
Vlach, Jan ; Kolář, Ladislav (referee) ; Osička, Karel (advisor)
The aim of this bachelor’s thesis is to suggest a suitable technological process of producing the given piece. This piece is the bottom shaping piece of an injection molding form, which is further used in producing plastic cartridges for the electrotechnical industry. Milling and drilling methods will be used in production. The technological processes will take place on a console milling machine and a CNC milling machine, for which an NC program is made using WORK NC software. One the basis of the manufacturing of the given piece and analysis of the machining times; a technological procedure including recommendations for improvement is chose.
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Parameters of the laser beam
Hort, Zbyněk ; Kolář, Ladislav (referee) ; Osička, Karel (advisor)
The diploma thesis consists of the three main parts. The first part deals with the theoretical description of the laser technology and other unconventional technologies. In the second part, the thesis is focused on testing the parameters of the laser and evaluating the most suitable parameters. In the last part the diploma thesis deals with comparison of unconventional technologies in terms of cut quality
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3D water jet
Kučera, Michal ; Kolář, Ladislav (referee) ; Osička, Karel (advisor)
This master thesis deals with the use and technological capabilities of abrasive water jet in the application of 3D cutting head. One part of this thesis is the description of waterjet technology and its other applications. The experimental comparison of the effect of the parameters was carried out for different materials Mach 4 equipment Flow International Corporation in company AWAC, spol. s.r.o. and subsequently the workpieces were subjected to evaluation of the shape and dimensional accuracy.
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