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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Measurement of roughness of the laser cutting edge by Yb-YAG laser
 Dočekal, Miroslav ; Hála, Michal (referee) ; Mrňa, Libor (advisor)
The project carried out in the bachelor's degree program B - STG (“Mechanical Engineering Technology”, 2303R002), evaluates the roughness of the cutting edges of steel plates cut by laser according to the ČSN EN ISO 9013 standard. The test samples were cut by Yb - YAG laser. In total, 11 samples were measured. The samples represent three kinds of material and were cut by two ways of laser cutting; the fusion method and the oxidation method. The samples of stainless steel X10CrNi18-8 were cut by the fusion method and the remaining samples of the DC 01 steel and S235 JRG steel were cut by the oxidation method. The samples were evaluated according to the ČSN EN ISO 9013 standard. The standard evaluates the quality of cut in thermal cutting and classifies individual cuts into accuracy classes. The samples of stainless steel fall into the first and second classes of accuracy. The samples of structural steel all fall into the second class of accuracy. This classification is the outcome of the practical part of the project. The theoretical part deals with the basic principle of laser, its parts, the industrial use of lasers and the lasers most commonly used in industry. It focuses particularly on laser cutting and the parameters which affect the quality of the cut in laser cutting. The measuring of roughness and the ČSN EN ISO 9013 standard are also described.
Detailed record
Measurement of roughness of the laser cutting edge by Yb-YAG laser
 Dočekal, Miroslav ; Hála, Michal (referee) ; Mrňa, Libor (advisor)
The project carried out in the bachelor's degree program B - STG (“Mechanical Engineering Technology”, 2303R002), evaluates the roughness of the cutting edges of steel plates cut by laser according to the ČSN EN ISO 9013 standard. The test samples were cut by Yb - YAG laser. In total, 11 samples were measured. The samples represent three kinds of material and were cut by two ways of laser cutting; the fusion method and the oxidation method. The samples of stainless steel X10CrNi18-8 were cut by the fusion method and the remaining samples of the DC 01 steel and S235 JRG steel were cut by the oxidation method. The samples were evaluated according to the ČSN EN ISO 9013 standard. The standard evaluates the quality of cut in thermal cutting and classifies individual cuts into accuracy classes. The samples of stainless steel fall into the first and second classes of accuracy. The samples of structural steel all fall into the second class of accuracy. This classification is the outcome of the practical part of the project. The theoretical part deals with the basic principle of laser, its parts, the industrial use of lasers and the lasers most commonly used in industry. It focuses particularly on laser cutting and the parameters which affect the quality of the cut in laser cutting. The measuring of roughness and the ČSN EN ISO 9013 standard are also described.
Detailed record

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