Laser kuchekaapplication
Fast axial kuyerera CO2 lasers anonyanya kushandiswa laser kucheka kwesimbi zvinhu, kunyanya nekuda kwemhando yavo yakanaka yedanda.Kunyangwe kuratidzwa kwesimbi zhinji kune CO2 laser matanda kwakakwira zvakanyanya, kutaridzika kwesimbi pamusoro petembiricha yekamuri kunowedzera nekuwedzera kwekushisa uye oxidation degree.Kana imwe nzvimbo yesimbi yakakuvadzwa, iyo reflectivity yesimbi iri pedyo ne 1. Kwekucheka kwesimbi laser, simba repamusoro rinodiwa, uye chete high-simba CO2 lasers ine mamiriro aya.
1. Laser kucheka kwesimbi zvinhu
1.1 CO2 inoenderera mberi laser yekucheka Iyo main process parameters ye CO2 inoenderera mberi laser yekucheka inosanganisira laser simba, mhando uye kumanikidzwa kweanobatsira gasi, kucheka kumhanya, kutarisisa chinzvimbo, kudzika kwakadzika uye nozzle urefu.
(1) Laser simba Laser simba rine simba guru pakucheka ukobvu, kucheka kumhanya uye incision upamhi.Kana mamwe ma parameter achigara, kumhanya kwekucheka kunoderera nekuwedzera kwekucheka kweplate ukobvu uye kunowedzera nekuwedzera kwelaser simba.Mune mamwe mazwi, iyo yakakura simba relaser, iyo gobvu ndiro inogona kutemwa, inokurumidza kukurumidza kucheka, uye yakakura zvishoma hupamhi hwekuchekwa.
(2) Rudzi uye kudzvinyirirwa kwegasi rinobatsira Paunenge uchicheka pasi kabhoni simbi, CO2 inoshandiswa segasi rinobatsira kushandisa kupisa kwesimbi-oxygen combustion reaction kukurudzira nzira yekucheka.Iko kumhanya kwekucheka kwakakwira uye iyo incision mhando yakanaka, kunyanya iyo incision isina inonamira slag inogona kuwanikwa.Pakucheka simbi isina tsvina, CO2 inoshandiswa.Slag iri nyore kunamatira kune yakaderera chikamu cheiyo incision.CO2 + N2 yakasanganiswa gasi kana kaviri-layer gasi kuyerera inowanzoshandiswa.Kudzvinyirirwa kwegasi rinobatsira kune zvakakosha pakucheka maitiro.Kuwedzera kwakaringana gasi kudzvanywa kunogona kuwedzera kukurumidza kucheka pasina inonamira slag nekuda kwekuwedzera kwegasi kuyerera kwemhepo uye kuvandudzwa kwesimba rekubvisa slag.Zvisinei, kana kudzvinyirirwa kwakanyanyisa, nzvimbo yakachekwa inova yakaoma.Mhedzisiro yekumanikidza kweokisijeni paavhareji kushata kwenzvimbo yekucheka inoratidzwa mumufananidzo uri pazasi.
Kudzvinyirirwa kwemuviri kunoenderanawo nekukora kweplate.Paunenge uchicheka yakaderera kabhoni simbi ine 1kW CO2 laser, hukama pakati peokisijeni yekumanikidza uye ukobvu hwendiro inoratidzwa mumufananidzo uri pazasi.
(3) Kucheka kukurumidza Kucheka kumhanya kune zvakakosha pakucheka mhando.Pasi pemamwe mamiriro emagetsi e-laser, kune anowirirana epamusoro uye akaderera akakosha kukosha kweakanaka kucheka kumhanya kana uchicheka yakaderera kabhoni simbi.Kana iyo yekucheka kumhanya yakakwira kana yakaderera pane yakakosha kukosha, slag sticking ichaitika.Apo kukurumidza kwekucheka kunononoka, nguva yekuita kweiyo oxidation reaction heat pamucheto wekucheka inowedzerwa, hupamhi hwekucheka hunowedzera, uye nzvimbo yekucheka inova yakaoma.Sezvo kumhanya kwekucheka kunowedzera, iyo incision zvishoma nezvishoma inova yakamanikana kusvika hupamhi hwepamusoro incision yakaenzana nedhayamita yenzvimbo.Panguva ino, kuchekwa kunenge kwaita wedge, kukafara kumusoro uye kutetepa kuzasi.Sezvo kumhanya kwekucheka kuri kuramba kuchiwedzera, hupamhi hwekuchekwa kwepamusoro hunoramba hudiki, asi chikamu chezasi chekuchekwa chinova chakakura uye chinova inverted wedge shape.
(5)Kudzamisa pfungwa
Iyo yakadzika yekutarisa kune imwe nhanho pahutano hwekucheka kwepamusoro uye kukurumidza kucheka.Paunenge uchicheka mahwendefa makuru esimbi, danda rine kudzika kwakadzika kwepamusoro rinofanira kushandiswa;pakucheka mahwendefa akaonda, danda rine diki rakadzika rakadzika rinofanira kushandiswa.
(6)Nozzle urefu
Kureba kwemhuno kunoreva chinhambwe kubva kumagumo erubatsiro rwegasi muromo kusvika kumusoro kwechishandiso.Kureba kwenozzle yakakura, uye kukurumidza kweiyo ejected yekubatsira mhepo inoyerera iri nyore kuchinjika, iyo inokanganisa kunaka kwekucheka uye kumhanya.Naizvozvo, kana laser yekucheka, kureba kwenozzle kunowanzo kuderedzwa, kazhinji 0.5 ~ 2.0mm.
① Laser zvinhu
a.Wedzera simba relaser.Kugadzira mamwe ane simba lasers inzira yakananga uye inoshanda yekuwedzera kucheka ukobvu.
b.Pulse processing.Pulsed lasers ane yakanyanya simba repamusoro uye anogona kupinda mukati makobvu simbi mahwendefa.Kushandisa yakakwira-frequency, yakamanikana-pulse-width pulse laser yekucheka tekinoroji inogona kucheka gobvu simbi mahwendefa pasina kuwedzera laser simba, uye incision size idiki pane iyo inoenderera mberi laser yekucheka.
c.Shandisa lasers itsva
②Optical system
a.Adaptive optical system.Musiyano kubva kune yechinyakare laser kucheka ndeyekuti haidi kuisa tarisiro pazasi penzvimbo yekucheka.Kana iyo yekutarisisa ichichinjika kumusoro nekudzika mamirimita mashoma padyo negwara rekukora kwendiro yesimbi, kureba kweiyo inogadziriswa optical system inoshanduka nekuchinja kwenzvimbo yekutarisa.Iko kukwira nekudzika shanduko muhurefu hwakatarisana nekufamba kwehukama pakati pelaser uye workpiece, zvichiita kuti nzvimbo yekutarisa ichinje kumusoro nekudzika pamwe nekudzika kwechishandiso.Iyi yekucheka maitiro umo iyo yekutarisa chinzvimbo inochinja nekunze mamiriro inogona kuburitsa emhando yepamusoro kucheka.Kuipa kweiyi nzira ndeyekuti kudzika kwekucheka kunogumira, kazhinji hakupfuuri 30mm.
b.Bifocal yekucheka tekinoroji.Lens yakakosha inoshandiswa kutarisa danda kaviri pazvikamu zvakasiyana.Sezvinoratidzwa mumufananidzo 4.58, D ndiyo dhayamita yechikamu chepakati chelenzi uye dhayamita yechikamu chekumucheto chelenzi.Iyo radius ye curvature pakati pe lens yakakura kupfuura nzvimbo yakatenderedza, ichiita kutarisisa kaviri.Munguva yekucheka, iyo yepamusoro inotariswa iri pamusoro pepamusoro peiyo workpiece, uye iyo yakaderera yakatarisa iri pedyo nechepasi pechiso che workpiece.Iyi yakakosha mbiri-yakatarisana nelaser yekucheka tekinoroji ine zvakawanda zvakanaka.Nekucheka simbi yakapfava, haingogone kuchengetedza yakakwirira-yakasimba laser danda pamusoro pepamusoro pesimbi kuti isangane nemamiriro anodiwa kuti zvinhu zvipfure, asi zvakare kuchengetedza yakakwirira-yakasimba laser danda padyo nepasi pepasi pesimbi. kuzadzisa zvinodiwa pakubatidza.Iko kudikanwa kwekugadzira kucheka kwakachena mukati mehupamhi hwese hwezvinhu makubvu.Iyi tekinoroji inowedzera huwandu hwema paramita ekuwana emhando yepamusoro kucheka.Somuenzaniso, kushandisa 3kW CO2.Laser, iyo yakajairwa yekucheka ukobvu inogona kungosvika 15 ~ 20mm, nepo kucheka ukobvu uchishandisa mbiri yekucheka tekinoroji inogona kusvika 30 ~ 40mm.
③Nozzle uye yekubatsira kuyerera kwemhepo
Gadzira zvine mutsindo dhizaini kuti uvandudze kuyerera kwemhepo hunhu.Iyo dhayamita yemadziro emukati meiyo supersonic nozzle inotanga kuderera yobva yawedzera, iyo inogona kuburitsa supersonic airflow pakubuda.Iyo air supply pressure inogona kunge yakakwira zvakanyanya pasina kugadzira shock wave.Paunenge uchishandisa supersonic nozzle yekucheka laser, iyo yekucheka mhando yakanakirawo.Sezvo kudzvanywa kwekucheka kweiyo supersonic nozzle pane yebasa rekushanda kwakadzikama, inonyanya kukodzera kucheka kwelaser kwemahwendefa esimbi.
Nguva yekutumira: Jul-18-2024
