Patlisiso ea kopo mabapi le theknoloji ea bohloeki ea Laser ea Metal Surface

1. Ho hloekisa laser ha ho tlose litšila feela empa ho ntlafatsa le ho omella ha kutu

Lehare la e ka hlola mefokolo ea theknoloji ea moetlo oa bohloeki, joalo ka ho jella nako, ho sebetsa ka thata, tšilafalo ea tikoloho jj. Ntle le moo, likarolo tsa tlhoekiso ea laser li ka laoloa le ho feta e le hore bokaholimo ba tšepe bo hloekisoa ka har'a lik'hemik'hale 'me bo theha sekaka se sirelletsang ka botenya ba microns hore bo se ke ba senyeha le ho feta. Ho senya mokhoa o sebelisang theknoloji ea bohloeki ea laser ho ka etsa hore khanyetso ea lisebelisoa tsa tšepe e Eketse makhetlo a 3 ho isa ho a mane.

2. Khetho ea mofuta oa laser le wavelength li na le tšusumetso ea bohlokoa phepelong

As shown in the figure, the absorption coefficients of various metals change with wavelength. At λ=916nm-1200nm, most metals have higher absorption coefficients in this band, and organic matter has relatively strong laser absorption in this band. Because of this, in terms of absorption rate, combining the comparative advantages of various aspects, fiber lasers have demonstrated unique advantages in all aspects. The organic pollution layer absorbs the laser strongly, and the temperature of the organic pollution layer quickly rises to the evaporation point to vaporize, thereby achieving the purpose of removing the pollution layer without damaging the substrate. Then determine the energy threshold of laser cleaning, the energy threshold of laser cleaning will determine the effect of laser cleaning. Selecting the appropriate laser cleaning energy threshold requires comprehensive consideration of the material's performance, microstructure, morphological defects, and the effects of laser wavelength and pulse width.

3. Tsela e loketseng ea ts'ebeliso ea laser e etsa hore tlhoekiso e sebetse hantle

Ha laser e etsahala sebakeng se itseng sa oblique, laser e radiated ka kotloloho tlasa likarolo tse kholisitsoeng, e baka khatello e phahameng ea maikutlo. Ha ho bapisoa le maemo a tloaelehileng, lintho tse silafatsang li tlosoa habonolo. Ntle le moo, patlisiso e fumane hore ka keketseho ea sekontiri se sekameng, sebaka sa radiation sa laser se pharaletse. Ha sekhahla se sekametsoeng ka likhato tse 20, sebaka sa sebaka se lokelang ho hloekisoa se na le makhetlo a 10 a maemo a tloaelehileng, a ntlafatsang ka botlalo ts'ebetso ea ho hlatsoa ha laser.

4. Tekanyo e nepahetseng ea defocusing e ntlafatsa ts'ebetso ea tlhoekiso ea laser

Sisteme ea ho hlatsoa e tla fapana bakeng sa mekhahlelo e fapaneng ea defocus. Ho hloekisa ke mokhoa oa ho phatloha ha lintho tse ka holim'a lefatše ha ho kopantsoe, 'me ha palo ea defocusing e le kholo, ho tlosoa ha karolo ea pente ho fetoloa ho tloha ho karohano ho ea mongobo.

Bakeng sa ho ntlafatsa phello ea tlhoekiso ea laser libakeng tsa tšepe, ho hlokahala hore ho hlahlojoe ka botlalo mokhoa oa ho hloekisa ka laser, mohlala oa ho hloekisa, mofuta oa laser, laser wavelength, matla a motlakase, matla, frequency ea pulse, nako ea pulse le angle laser. Laser e tsamaeang e ka hloekisa kutu ea lefatše ka tšepe. Ha wavelength ke 1064nm, matla a laser a 500W, frequency ea pulse ke 10kHz, bophahamo ba pulse ke 120ns, lebelo la ho hloekisa ke 60mm / s, mme sekhahla sa phanele ke 5%. Phello ea kutu ea kutu ke eona e ntle ka ho fetisisa, 'me boteng ba oksijene ha bo fumanoe tlhoekiso ea laser ea mafome, libaka tse fokolang, mela le lintlha. Ke feela thuto e hlophisehileng ea li-process tsa process e ka bopa sistimi e sebetsang ea ho hlatsoa laser.