Now showing 1 - 3 of 3
  • Publication
    RESEARCH OF CARBON FIBER MATERIAL LASERCUT OPTIMIZATION
    The report considers the possibility of using laser technology for cutting products from carbon fiber. The study uses a fiber laser with a wavelength of 1080 ±10nm. The dependences of the width b of the cutting lines on power density q and processing speed v are considered. As a result of experimental studies, power density and speed parameters were optimized for high-quality cutting of the carbon fiber.
  • Publication
    RESERCH OF LASER MARKING CHANEL GEOMETRICAL DIMENSIONS DEPENDENCE OF CHANGE OF LASER RADIATION PARAMETERS ON STAINLESS STEEL
    (2016-04-20)
    Dunkins, Vitālijs
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    Komkovs, Jurijs
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    Narica, Pavels
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    Valiniks, Jānis
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    ; ;
    Publication describes results of the stainless steel laser marking, which shows relationship between geometry of the treated surface and parameters of the laser radiation, such as power, pulse frequency, and processing speed.
  • Publication
    CARBON DIOXIDE (CO2) LASER MARKING PROCESS PARAMETER IMPACT ON MARK QUALITY OF POLIVINILCHLORIDE (PVC) MATERIAL
    (2017-04-19)
    Riekstiņš, Jānis
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    Sivenkovs, Artūrs
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    Narica, Pāvels
    Laser technologies nowadays are widely used in material processing. CO2 laser systems in most cases are used in metallic material manufacturing and processing, taking not so big part in processing of plastic materials. This research is dedicated to find advantages or disadvantages and ways to use CO2 laser systems in plastic material processing, by taking PVC material as sample for experiments. PVC plastics is widely used in manufacturing of electrical installation details and devices, it is durable, relatively light, and cheap material. To provide application of various symbols, on the surface of plastic materials, can be used laser systems, which in long term can be more efficient than conventional marking methods. The aim of this work is to find if CO2 laser is appropriate for marking PVC material and to relate the mark quality parameters and the marking process parameters. The research was conducted in the period of time from March 2017 till April 2017, in the Rēzekne Academy of Technology, Physical process and laser technology research center.