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Nástroje pro frézování materiálů na bázi dřeva na CNC obráběcích centrech
Nesázal, Petr
The bachelor thesis is focused on milling on the CNC machine. The first part of the thesis deals with the theoretical overview regarding the topic. It provides the description of the CNC machine parts, the characteristics of mills and the milling technology. The following part focuses on cutting conditions during the experimental process and the procedure of data processing is also described in this part. At the end of the thesis cutting resistance data of the machined MDF (Medium Density Fibreboard) sample are evaluated. These data were recorded by the Kistler dynamometer and further used to ascertain the resultant force.
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Možnosti hodnocení textury povrchu frézovaných obrobků ze dřeva
Machučová, Monika
In my thesis I deal with method for evaluation texture of 2D profile and 3D surface, which were applied to real beech wood samples. For the experiment was used contactless sensor of confocal device Talysurf CLI 1000. For evaluation of measured values were used softwares Talymap Platinum (3D) and Talyporfile Platinum (2D), these softwares allowed compare charatceristics of 2D and 3D surface roughness of milled beech samplex under certain humidity condition.
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Analýza CNC spojů využívaných v nábytkářském průmyslu
Gajdoš, Martin
CNC joints represent a non-traditional way of connecting materials. The work focuses on an analysis of the connections in the view of selected historical context, the philosophy and the real situation, as well as new production lines based on this relatively new technology. Additionally, other characteristics of CNC connection, such as aestheics properties or effects of multiple joints coexistence in a product, are described in practical part. These documents are followed by a questionnaire for producers of furniture which explores their attitude to these joints. The questionnaire should help to clarify the ability of the joint to compete on the market; and the willingness of manufacturers to implement the philosophy of CNC joinery into its production. The author produced a sample consisting of four typical CNC connections, milled on a CNC machining center as an outcome of all the collected knowledge. The production of the sample will help to determine material, economic and also skill demands of product manufacturing which are based on this connection. The work contains a thematic literature review, an analysis of selected properties of the connection, a questionnaire, its evaluation, results interpretation, and description of the CNC joints sample production. The last part summarizing the results and CNC joint potential in relation to the furniture.
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Optimalizace parametrů obrábění na CNC stroji
Parys, Roman
The bachelor thesis deals with assessing the surface quality of samples from solid wood milling on the CNC machine. The first part describes the process of milling, methods of the surface quality evaluation and used parameters. In the experimental part of the work is presented the preparation of samples on the CNC machine and a measuring methodology using the device Talysurf CLI 1000. The surface quality is evaluated on samples from spruce and beech, because they are our the most widespread and most commonly used wood species. In conclusion, there is the actual results of the evaluation of surface roughness and waviness and recommendations for practice.
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