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A COMPARISON OF THE WATER JET CUTTING AND LASER TECHNOLOGIES
Chamrad, Jakub ; Zlámal, Jan (referee) ; Píška, Miroslav (advisor)
The thesis is focused on the introduction of non-conventional technology into the manufacturing workplace, mainly water jet and laser cutting. The first two chapters are research about water jet machining and laser. A practical part of my thesis was carried out with the assistance of Honeywell and involved comparing the efficiency of an older laser cutting machine against and new one for water jet machining.
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Vlastnosti měsíčního dřeva
Zlámal, Jan
Jan Zlámal: Moon wood properties Bachelor thesis, Mendel University in Brno, 2017. 36 pages. This thesis summons the knowledge about the moon wood especially about its physical and mechanical properties. It compars the results of scientifical studies and experiments which were so far performed. So this thesis contains general knowledge about moon wood topic and chapters sorted according wood properties based on real experiments with moon influence on wood. The monitored properties are humidity, density, dimension changes, compression strength, combustibility and resistence. The most commonly observed tree species were Norway Spruce (Picea abies L. Karst) and Sweet Chestnut (Castanea sativa Mill.). The thesis also gives the overview of examined hypothesis, methodology of the experiments, time periods etc. This compilation can serve as a base for following experimental research.
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Zhodnocení vlivu podmínek stanoviště a období těžby na vlastnoti dřeva smrku
Zlámal, Jan
Diploma thesis, Mendel University in Brno, 2019 This thesis deals with some factors influencing the physical and mechanical properties of Norway spruce wood (Picea abies L. (H. Karst)), mainly the effect of felling time and wood processing on physical and mechanical properties. This thesis analyzes data from standing trees, lying logs and worked beams. The beams were processed in four different ways, by hewing, standard cutting, hewing from dipped logs, hewing and subsequent dipping. Felling of trees for the production of these beams was performed in winter, spring and summer. Most of the felling operations were carried out with respect to the moon phase, always the first and second quarters of the month phase. The results of experimental measurements are arranged and statistically evaluated. Also the thesis summarizes the findings from literature of suitable spruce habitats for the selection of quality wood raw material.
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A COMPARISON OF THE WATER JET CUTTING AND LASER TECHNOLOGIES
Chamrad, Jakub ; Zlámal, Jan (referee) ; Píška, Miroslav (advisor)
The thesis is focused on the introduction of non-conventional technology into the manufacturing workplace, mainly water jet and laser cutting. The first two chapters are research about water jet machining and laser. A practical part of my thesis was carried out with the assistance of Honeywell and involved comparing the efficiency of an older laser cutting machine against and new one for water jet machining.
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