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Istraživanje laserskog graviranja nehrđajućeg čelika AISI 304 primjenom metodologije odzivne površine (RSM) ; Investigation of the laser engraving of AISI 304 stainless steel using a response-surface methodology

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  • معلومة اضافية
    • بيانات النشر:
      University of Slavonski Brod, Faculty of Mechanical Engineering
      Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
      Josip Juraj Strossmayer University of Osijek, Faculty of Civil Engineering and Architecture Osijek
    • الموضوع:
      2016
    • Collection:
      Hrčak - Portal of scientific journals of Croatia / Portal znanstvenih časopisa Republike Hrvatske
    • نبذة مختصرة :
      U ovom članku predstavljen je proces laserskog graviranja, hladno valjanog nehrđajućeg čelika AISI 304, primjenom tehnike za tiskanje - intaglio tiska (npr. novčanice i putovnice). Proces intaglio tiska omogućava da se tinta iz željenog graviranog uzorka (npr. mikroslova i slike) prenosi na list papira. Intenzitet boje ispupčenih likova koji se pojavljuju na papiru onemogućavaju krivotvorenje i odgovaraju geometriji kanala koji nastaju tijekom laserskog graviranja. Da bi se dobila odgovarajuća geometrija kanala, i da bi se izbjegli dugotrajni eksperimentalni pokušaji i pogreške, parametri graviranja moraju biti optimirani. U tu svrhu primijenjena je metoda plana eksperimenta (DoE), koristeći ortogonalni plan L27 (34). Analiza varijance (ANOVA) izvedena je na razini 95 % povjerenju, koristeći statistički softver. Utvrđeno je, da je brzina skeniranja najznačajniji ulazni parametar laserskog graviranja koji utječe na geometriju kanala. ; In this paper we present the laser-beam engraving of a cold-rolled AISI 304 stainless-steel plate used for intaglio printing (e.g., banknotes and passports). This intaglio printing process allows the ink from a desired engraved pattern (e.g., microletters and images) to be transferred to a sheet of paper. The intensity of the colour and the ability to prevent the forgery of raised characters that appear on the paper correspond to the channel geometries formed by the laser-beam engraving. In order to obtain the appropriate channel geometry, and to avoid time-consuming, trial-and-error experiments, the engraving parameters must be optimized. For this purpose the Design of Experiments method and the orthogonal array L27 (34) were selected. A statistical analysis ANOVA at the 95 % confidence level was performed using the statistical software. It was found that the scan speed is the most significant factor affecting the groove geometry.
    • File Description:
      application/pdf
    • Relation:
      https://hrcak.srce.hr/153180
    • الرقم المعرف:
      10.17559/TV-20150504150446
    • الدخول الالكتروني :
      https://doi.org/10.17559/TV-20150504150446
      https://hrcak.srce.hr/153180
      https://hrcak.srce.hr/file/225602
      https://hrcak.srce.hr/file/225603
    • Rights:
      info:eu-repo/semantics/openAccess ; TEHNIČKI VJESNIK - TECHNICAL GAZETTE is an Open Access journal. All content is made freely available. Users are allowed to copy and redistribute, and alter, transform, or build upon the material as long as they attribute the source in an appropriate manner.
    • الرقم المعرف:
      edsbas.53B1C9C2