Laser waldaza a iya samu ta amfani da ci gaba ko pulsed Laser katako. Ka'idodinwaldi na Laserza a iya raba zafi conduction waldi da Laser zurfin shigar waldi. Lokacin da ikon yawa ne kasa da 104 ~ 105 W / cm2, shi ne zafi conduction waldi. A wannan lokacin, zurfin shiga ba shi da zurfi kuma saurin walda yana jinkirin; a lokacin da ikon yawa ne mafi girma fiye da 105 ~ 107 W / cm2, da karfe surface ne concave cikin "ramuka" saboda zafi, forming zurfin shigar waldi, wanda yana da Yana da halaye na sauri waldi gudun da kuma babban al'amari rabo. Ka'idar aikin thermalwaldi na Lasershi ne: Laser radiation yana dumama saman da za a sarrafa, kuma zafin saman yana yaduwa zuwa ciki ta hanyar motsa jiki. Ta hanyar sarrafa sigogi na laser kamar nisa bugun bugun jini na Laser, kuzari, ƙarfin kololuwa, da mitar maimaituwa, kayan aikin yana narke don samar da takamaiman narkakken tafkin.
Laser zurfin shigar waldi gabaɗaya yana amfani da ci gaba da katako na Laser don kammala haɗin kayan. Tsarinsa na ƙarfe na ƙarfe yana kama da na waldawar katako na lantarki, wato, tsarin canza makamashi yana cika ta hanyar tsarin “maɓalli-rami”.
Karkashin iska mai iska na Laser tare da isasshen ƙarfin ƙarfin ƙarfi, kayan yana ƙafe kuma an kafa ƙananan ramuka. Wannan ƙaramin rami mai cike da tururi kamar baƙar fata ne, yana ɗaukar kusan dukkan ƙarfin wutar lantarki. Matsakaicin zafin jiki a cikin rami ya kai kusan 2500°C. Ana canja wurin zafi daga bangon waje na ramin zafin jiki mai zafi, yana sa ƙarfen da ke kewaye da ramin ya narke. Ƙananan rami yana cike da tururi mai zafi wanda aka haifar ta hanyar ci gaba da zubar da kayan bango a ƙarƙashin hasken wuta na katako. Ganuwar ƙananan rami suna kewaye da narkakkar ƙarfe, kuma ƙarfe na ruwa yana kewaye da m kayan (a cikin mafi yawan al'ada waldi matakai da kuma Laser conduction waldi, da makamashi da farko Deposited a saman da workpiece, sa'an nan kuma hawa zuwa ciki ta hanyar canja wurin. ). Ruwan ruwa yana gudana a waje da bangon rami da kuma tashin hankali na bangon bango yana cikin lokaci tare da ci gaba da haifar da matsa lamba a cikin rami da kuma kula da ma'auni mai ƙarfi. Hasken hasken yana ci gaba da shiga cikin ƙaramin rami, kuma kayan da ke waje da ƙaramin rami yana ci gaba da gudana. Yayin da fitilar haske ke motsawa, ƙananan rami koyaushe yana cikin kwanciyar hankali na gudana.
Wato ƙaramin rami da narkakken ƙarfe da ke kewaye da bangon ramin suna tafiya gaba tare da saurin gaba na katakon matukin jirgi. Karfe da aka narkar da shi ya cika ratar da aka bari bayan an cire karamin ramin kuma ya takure yadda ya kamata, kuma an yi walda. Duk wannan yana faruwa da sauri ta yadda saurin walda zai iya kaiwa mita da yawa cikin sauƙi a cikin minti daya.
Bayan fahimtar ainihin ra'ayi na ikon yawa, thermal conductivity waldi, da zurfin shigar waldi, za mu gaba da gudanar da wani kwatancen bincike na ikon yawa da kuma metallographic lokuta daban-daban core diamita.
Kwatanta gwaje-gwajen walda bisa ga diamita na yau da kullun na Laser a kasuwa:
Ƙarfin ƙarfi na matsayi mai mahimmanci na laser tare da diamita na tsakiya daban-daban
Daga hangen nesa na ƙarfin ƙarfin, ƙarƙashin ikon ɗaya, ƙaramin diamita na tsakiya, mafi girman haske na laser kuma mafi yawan kuzarin kuzari. Idan aka kwatanta Laser da wuka mai kaifi, ƙananan diamita na tsakiya, mafi girman laser. Ƙarfin wutar lantarki na Laser core diamita na 14um ya fi sau 50 fiye da na 100um core diamita Laser, kuma ikon sarrafawa ya fi karfi. A lokaci guda, ƙarfin ƙarfin da aka lasafta a nan shine kawai matsakaicin matsakaicin matsakaici. Ainihin rarraba makamashi shine kusan rarraba Gaussian, kuma makamashin tsakiya zai zama sau da yawa matsakaicin ƙarfin ƙarfin.
Tsarin tsari na rarraba makamashin Laser tare da diamita na tsakiya daban-daban
Launi na zane mai rarraba makamashi shine rarraba makamashi. Da ja launi, mafi girma da makamashi. Jajayen makamashi shine wurin da makamashin ya tattara. Ta hanyar rarraba makamashin Laser na katako na laser tare da diamita daban-daban, ana iya ganin cewa gaban laser ba shi da kaifi kuma katakon laser yana da kaifi. Karami, mafi yawan kuzarin yana kan batu guda, gwargwadon ƙarfinsa kuma yana ƙara ƙarfin shigarsa.
Kwatanta tasirin walda na lasers tare da diamita na tsakiya daban-daban
Kwatanta lasers tare da diamita na tsakiya daban-daban:
(1) Gwajin yana amfani da saurin 150mm / s, walƙiya matsayi na mayar da hankali, kuma kayan shine 1 jerin aluminum, 2mm lokacin farin ciki;
(2) Mafi girman diamita na tsakiya, mafi girman nisa na narkewa, mafi girma yankin da zafi ya shafa, da ƙananan ƙarfin ƙarfin naúrar. Lokacin da core diamita ya wuce 200um, ba sauki a cimma zurfin shigar azzakari cikin farji a kan high-reaction gami kamar aluminum da jan karfe, da kuma mafi girma Deep shigar waldi za a iya samu kawai tare da babban iko;
(3) Ƙananan ƙananan lasers suna da ƙarfin ƙarfin ƙarfi kuma suna iya saurin buga ramukan maɓalli a saman kayan da ke da ƙarfin makamashi da ƙananan yankunan da zafi ya shafa. Duk da haka, a lokaci guda, saman walda yana da wuyar gaske, kuma yiwuwar rushewar maɓalli yana da girma a lokacin walda mara sauri, kuma an rufe maɓalli a lokacin sake zagayowar walda. Zagayowar yana da tsawo, kuma lahani kamar lahani da pores suna da wuyar faruwa. Ya dace da aiki mai sauri ko aiki tare da yanayin motsi;
(4) Large core diamita Laser da ya fi girma haske spots kuma mafi tarwatsa makamashi, sa su mafi dace da Laser surface remelting, cladding, annealing da sauran matakai.
Lokacin aikawa: Oktoba-06-2023
