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Resistance spot welding
Kosinka, Jakub ; Kandus, Bohumil (referee) ; Daněk, Ladislav (advisor)
The project describes the principle of resistance spot welding and sets the parameters which the quality of the weld nugget depends on. Moreover, it compares the macrostructure and mechanical properties of the spot welds made by soft or hard welding mode. In the experimental part, there is evaluating the strength of weld, precisely said cohesiveness weldments depending on the number of spot welds and their mutual position.
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Study of properties of laser welds of Domex 700 MC material using arc preheating
Kosinka, Jakub ; Šebestová, Hana (referee) ; Mrňa, Libor (advisor)
This thesis deals with the study of influence of preheating/reheating by TIG arc method in the laser welding process of Domex 700 MC fine-grained steel through the evaluation of laser-welds properties, respectively properties of welds made by laser-TIG hybrid technology. The main part of this thesis is experiment, in which Domex 700 MC plates 3 mm thick were welded – first using laser itself, then using laser with arc preheating and finally using laser with arc reheating. The variable parameter during the processes preheating or reheating was distance of TIG tungsten electrode and laser beam (DLA = 1 mm, 2 mm and 4 mm). The criterion for the assessment of welds properties thus produced was tensile strength verified by the tensile test. For a more detailed study of the laser-welds properties, a macrostructure / weld microstructure analysis and a Vickers hardness test were performed.
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Study of properties of laser welds of Domex 700 MC material using arc preheating
Kosinka, Jakub ; Šebestová, Hana (referee) ; Mrňa, Libor (advisor)
This thesis deals with the study of influence of preheating/reheating by TIG arc method in the laser welding process of Domex 700 MC fine-grained steel through the evaluation of laser-welds properties, respectively properties of welds made by laser-TIG hybrid technology. The main part of this thesis is experiment, in which Domex 700 MC plates 3 mm thick were welded – first using laser itself, then using laser with arc preheating and finally using laser with arc reheating. The variable parameter during the processes preheating or reheating was distance of TIG tungsten electrode and laser beam (DLA = 1 mm, 2 mm and 4 mm). The criterion for the assessment of welds properties thus produced was tensile strength verified by the tensile test. For a more detailed study of the laser-welds properties, a macrostructure / weld microstructure analysis and a Vickers hardness test were performed.
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Resistance spot welding
Kosinka, Jakub ; Kandus, Bohumil (referee) ; Daněk, Ladislav (advisor)
The project describes the principle of resistance spot welding and sets the parameters which the quality of the weld nugget depends on. Moreover, it compares the macrostructure and mechanical properties of the spot welds made by soft or hard welding mode. In the experimental part, there is evaluating the strength of weld, precisely said cohesiveness weldments depending on the number of spot welds and their mutual position.
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Fulltime trading – intraday trading with live account
Kosinka, Jakub ; Smrčka, Luboš (advisor) ; Strouhal, Jiří (referee)
In this diploma thesis I am going to deal with building the business strategy using methods of technical and orderflow analysis. Then I am going to test this strategy on the market E-mini Nasdaq 100 in simulation mode and then in real market. The goal of this thesis is to determine if the results achieved in simulation mode can be also achieved in real market where the trader operates a number of negative factors such as stress, nervousness, or risking his own money.
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Intraday trading – testing „Woodies CCI“ system
Kosinka, Jakub ; Smrčka, Luboš (advisor) ; Zámečník, Petr (referee)
In this bachelor thesis I will deal with testing intraday trading system "Woodies CCI". Since the topic of intraday trading is not known to general public I will explain this concept in theoretical part. Further I give everything that trader should know before deciding to start trading on stock exchange or more precisely on the commodity markets. In practical part I am going to introduce trading system "Woodies CCI" and all its rules including sample images. Further I will test it on historical data. Analysis of results will be performed in the conclusion of this work.
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