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Optimization of laser fusion cutting of coated aluminum sheets
Pokorák, Milan ; Hála, Michal (referee) ; Mrňa, Libor (advisor)
The thesis primarily deals with the optimization of laser cutting center for coated aluminium sheet cutting and with the subsequent comparison of measured results and a sample made using waterjet cutting. The thesis is divided in two parts, the theoretical part followed by the practical one. The theoretical section is concerned with the unconventional technologies used, with their general analysis, design, history and utilization for industrial appliances. Main parts of this thesis deals with classification of particular cutting principles and their specific description. The theoretical part contains also classificaton of aluminium alloy, description of surface texture measurement and explanation of basics terms used for roughness measurement. The practical section is concerned with the particular task solution and with all knowledge used for optimization and evaluation of laser cutting. This part contains the measurement results, the measured material, the machines and devices used and also the technical and economical evaluation of this thesis content. The overall evaluation of the laser cutting optimization of specific component is mentioned in the experiment outcome evaluation article.
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Advanced methods of surface topography evaluation
Metelková, Jitka ; Prokop, Jaroslav (referee) ; Píška, Miroslav (advisor)
This paper provides an overview of contemporary methods for evaluation of the part surface, nowadays measurement devices and evaluated parameters. The main part of the paper is devoted to advanced methods of surface topography evaluations including the application of the new non-contact measurement technique Alicona G4. The experimental part deals mainly with a study of surface texture parameters of the machined aluminium alloy AlCu4MgSi when face turning. It concerns mostly a study of the tool feed rate influence (the uncoated insert GIPA-6.00-3.00, ISO 513 N05-N25, Iscar) on selected profile and surface parameters, including comparison of measurement results achieved by the contact (Form Talysurf Intra 50, Taylor Hobson) and non-contact method (IFM G4, Alicona).
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Contact and non-contact method of surface texture evaluation
Harčarík, Matej ; Hammer, Miloš (referee) ; Jankových, Róbert (advisor)
The goal of this thesis was to create an overview of methods of surface texture evaluation, to analyse measurements of roughness profile parameters made with contact instruments and non-contact instrument Talysurf CCI Lite and to deduce practical recommendations from them. Based on measurements made, analyses of influence of cut-off settings on roughness measurement and of measurement variability were performed. Steps of the measurement process requiring special attention were identified. The output of this thesis is a proposal of measurement procedure for Talysurf CCI Lite.
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Function and construction of burnishing tools
Hošková, Eliška ; Slaný, Martin (referee) ; Zemčík, Oskar (advisor)
Bachelor Thesis is aimed at chipless microfinishing burnishing rolled process. The thesis include principle of burnishing roller method, facilities and usage in view of requested properties of machina surface. The thesis include running conditions of burnishing roller, typem of tooling supplemented pictures of toolings made in Germany company Baublies AG accordance with using in production. Technical– economic evalution is described at the end of thesis.
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Measurement of roughness of the laser cutting edge
Pokorák, Milan ; Hála, Michal (referee) ; Mrňa, Libor (advisor)
This thesis primarily deals with the laser material cutting and with the subsequent evaluation of roughness of the cutting edges. The thesis is divided in two parts, the theoretical part followed by the practical one. The theoretical section is concerned with the introduction to laser technology and with the basics of roughness measurement. It contains the history of laser, its construction and its physical principle. It also deals with the description of laser types and laser technologies. An important part is about the surface texture, which includes basic terms and methods of roughness measurement. The practical section is concerned with the comparison of roughness of the cutting edges. They were measured on S235JR steel samples with the value declared in ČSN EN ISO 9013 standard. This part contains the measurement results, the measured material and also machines and devices used. The overall evaluation of the practical measurement is mentioned in the final experiment outcome evaluation.
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Technologies and methods for plane surface finishing
Hanzlík, Václav ; Zemčík, Oskar (referee) ; Zemčík, Oskar (advisor)
This thesis deals with technologies of finishing plane surfaces, describes individual methods and results on quality of surface including their advantages and disadvantages of using in industry. The thesis contains overview of both new and old technologies as well as mostly used conventional and unconventional methods of finishing plane surfaces.
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Functional surfaces and surface texture
Novák, Jiří ; Brandejs, Jan (referee) ; Svoboda, Pavel (advisor)
The aim of this bachelor publication was an elaboration of professional recherche about geometric product specification (GPS). My publication contains the comparison of the foregone and current norms, which include parameters surface texture and notation surface texture, relation of surface texture and surface function, incoming development trends and needful supplements.
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