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DEVELOPMENT OF TOOLS WITH PCD, CVD LAYER AND CVD COATING FOR BORE FINISHING
Ćmiel, Milan ; Humár, Anton (referee) ; Kouřil, Karel (advisor)
The aim of the thesis is to design, conduct and assess an experiment seeking to look into the utility properties of recent tools manufactured by HAM-FINAL. The tools include polycrystalline diamond (PCD) and CVD diamond cutting edges. In the theoretical part, the attention is devoted to cutting materials with an emphasis on diamond materials, as well as to issues associated with the wearing of the cutting tools, requirements specified for precision of bores and tools used in the manufacture of precision bores. The paper further provides an overview of a selection of world’s leading manufacturers of PCD blanks, CVD diamond coatings, CVD diamond layers and reamers with PCD cutting edges.
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Construction of comparison measuregauge for measurement of tools.
Brabenec, Petr ; Dočkal, Aleš (referee) ; Ždímal, Pavel (advisor)
This work is about construction of a comparison gauge to meausure revolving tools. The gauge measures cutting and clamping parts of standard and special reamers. The gauge is unique and is designed for a company manufacturing concerete. It was designed in accordance with requirements and a prototype was tested for functionality. There is made analysis, development, design, theoretic estimation and practical verification of accurancy.
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Application reamers with cermet cutting edge
Toman, Martin ; Plíšek, Jiří (referee) ; Kouřil, Karel (advisor)
This thesis deals with the technology of reaming aimed mainly on cermet reamers. In the introduction of the thesis, the basic parameters of precision, dimension tolerance, geometrical tolerance and surface roughness are shown. Also, the technology of reaming, parameters, geometry and sorting of the reaming tools is analyzed in depth. The overview of the world producers of reaming tools is also shown as a supplement. In the final part, an example of production optimization by replacing a reamer with a better performing one is shown. Experimental part of this thesis has been made in the cooperation with HAM-FINAL company.
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