Now showing 1 - 3 of 3
  • Publication
    USE OF CO2 LASER FOR MARKING AND CLEARING OF TEXTILE MATERIALS FOR MANUFACTURE OF MILITARY EQUIPMENT
    (2019-06-19) ;
    Jordan Shterev Ivanov
    ;
    Stelena Dimitrova Lilyanova
    ;
    ;
    Nikolay Todorov Dolchinkov
    In the last decades, a large application has been found by lasers in marking and cutting on textiles, plexiglass, wood, metals and other materials. These items apply to both the military and the economy of the countries of the world. A group of Bulgarian students from the National Military University Vasil Levski, led by Dr. Nikolay Dolchinkov, conducted a research with a group of TAR under the leadership of Prof. Lubomir Lazov at the Laser Center in Rezekne at the end of 2018. The report shows the achieved results and the relevant analyzes. Graphically and tabularly, the dependence of the depth of the markings and the cut-off of the power and speed of the used CO2 laser are presented.
    Scopus© Citations 1
  • Publication
    OPTIMIZATION OF CO2 LASER PARAMETERS FOR WOOD CUTTIOPTIMIZATION OF CO2 LASER PARAMETERS FOR WOOD CUTTING
    (2017-06-14)
    Hristina Deneva
    ;
    Janis Valiniks
    ;
    ;
    Dainis Klavins
    ;
    Pavels Narica
    ;
    By taking advantage of the best characteristics of wood, modern production methods can offer hard wearing and ecological solutions in industrial construction, house building, machinery construction, furniture manufacturing, transport and many other industries. Laser cutting process is an alternative choice to prepare the final shape of wood parts. Materials like wood have good laser light absorption of wavelength 10600 nm. In this paper a CO2 laser system with a maximum continuous-wave output power of 150 W is described and used in studying laser cutting process of wood materials. Cut depth is evaluated with variation of values of laser power and cutting speed. Additionally, optimal values of parameters for laser cutting of different wood plate thicknesses are determined and graphs are created showing the results.
    Scopus© Citations 1
  • Publication
    ON THE POSSIBILITY OF MARKING EGGS WITH A CO2 LASER
    (2021-06-17)
    Pēteris Čeirs
    ;
    ;
    A number of policies and standards regarding food safety issues and quality management have been established for the food industry. One of these requirements is related to the marking of food products describing the expiration date, content and quality.  The report examines the possibility of using laser technology to mark chicken eggs. The contrast of the laser marking is the main criterion for determining its quality. The study examines the functional dependences of the contrast on the main technological parameters of the marking process: laser output power (7 – 20.3 W) and processing speed (50 - 300 mm/s). As a result of the research, optimal parameters for marking with a technological laser system CO2 have been determined.