Nruam lossis Pulsed Laser Vuam: Yuav Ua Li Cas Xaiv Txoj Cai

Laser welding buyers feem ntau ntsib tib lo lus nug ntawm lub specification theem:nruam nthwv dej (CW) los yog pulsed?Cov lus teb tsis yog tsuas yog "pulse rau nyias, CW rau tuab." Cov khoom siv reflectivity, kub rhiab heev, seam geometry, xav tau qhov tob, thiab lub sij hawm voj voog tag nrho thawb qhov kev txiav txim siab sib txawv. Cov lus qhia no taug kev los ntawm physics, beam yam ntxwv, cov txiaj ntsig vuam, thiab cov nqi logic kom koj tuaj yeem phim lub laser hom rau txoj haujlwm - tsis yog lwm txoj hauv kev.

Lub laser tuaj yeem muab faib ua wavelength, nquag nruab nrab, lossis hom kev ua haujlwm. Los ntawm wavelength, kev lag luam feem ntau hais txog infrared, pom, thiab ultraviolet systems. Los ntawm kev ua haujlwm nruab nrab, cov kev xaiv suav nrog CO₂ lasers, fiber ntau lasers, Nd³⁺:YAG khoom-xeev lasers, disk lasers, direct diode lasers (DDL), thiab dye lasers. Hom kev khiav hauj lwm - txoj kev xa cov nqaj xa mus rau - yog qhov tseem ceeb tshaj plaws rau kev vuam: nruam nthwv dej (CW), quasi -nruam nthwv dej (QCW), lossis pulsed.

Yog tias koj tseem tab tom sib piv qhov twg laser qhov haum rau koj daim ntawv thov, peb tsab xov xwm ntawmMuab piv rau qhov zoo thiab qhov tsis zoo ntawm ntau hom lasermuab ib sab -los ntawm- sab txheej txheem cej luam ntawm CO₂, fiber, Nd:YAG, disk, thiab DDL platforms.

Nyob rau hauv lub resonator, lub teeb oscillates ntawm daim iav. Thaum tus nqi rov ua dua ntawm cov bursts nyob qis dua qhov pib, cov zis tau xa tawm raws li cov pulses cais. Thaum qhov zaus hla qhov pib, tus neeg pulses sib koom ua ke mus rau hauv ib qho kwj mus tas li. Tsis muaj ib thaj tsam thoob ntiaj teb uas txhua tus neeg tsim khoom siv, tab sis qhov sib txawv ntawm qhov sib txawv yog qhov tiag: cov tshuab hluav taws xob xa tawm tsis sib xws, siab - cov pob khoom hluav taws xob, thaum CW tshuab xa cov khoom siv hluav taws xob tsis tu ncua.

Rau kev qhia dav dav rau kev coj tus cwj pwm, sib koom ua ke, thiab kev lag luam vuam hom, pib nrogLub hauv paus ntawm laser vuam tshuab.

Table 1: Kev faib tawm tswv yim ntawm laser kev khiav hauj lwm hom los ntawm repetition tus nqi. Tus nqi ciam teb yog kev lag luam- cov kev siv ntau yam, tsis yog qhov tseeb.

Rau kev tsom xam sib piv ntawm CW thiab QCW tshwj xeeb - nrog rau cov nyhuv vuam, qhov zoo, thiab daim ntawv thov haum - nyeem cov lus qhia ntawmCW vs QCW kev ua haujlwm hom kev sib piv.

Hauv kev txiav hlau, CW lasers feem ntau tau piav qhia los ntawm lub zog ib leeg. Nyob rau hauv pulse laser welding, plaub yam tsis tau txhais cov txheej txheem: peak mem tes zog, mem tes ntev (mulse width), repetition rate (frequency), thiab nruab nrab lub zog. Kev sib raug zoo ntawm lawv yog:

Lub zog nruab nrab=pulse zog × mem tes dav × repetition tus nqi

Qhov kev sib npaug no yog qhov kev txwv hauv nruab nrab rau txhua txoj haujlwm welding. A 500 W nruab nrab -lub zog pulsed Nd:YAG system tseem tuaj yeem xa cov mem tes siab tshaj 12 kW vim tias lub zog tau ntim rau hauv luv luv, dav sib cais. Lub ncov siab ntawd - rau - qhov nruab nrab qhov sib piv yog qhov ua rau lub tshuab nqus tsev vuam siv tau zoo ntawm cov hlau muaj kev cuam tshuam thiab cov khoom siv thermally rhiab heev.

Fiber CW lasers dominate siab -ceev, sib sib zog nqus- welding. Lawv tsis ncav cuag tib yam nkaus xwb -pulse ncov lub zog li Nd:YAG, tab sis lawv khaws cov khoom ua haujlwm nyob rau hauv qhov ruaj khov thermal load ntawm kev mus los. Cov tshuab DDL tau muaj kev sib tw hauv CW vuam: compact, hluav taws xob zoo, thiab nrog ze rau - sab saum toj - lub kaus mom siv qhov profile uas npog dav seams tusyees.

Nruab nrab ntawm ob qhov kawg zaum QCW fiber ntau laser vuam. QCW cov tshuab hluav taws xob luv luv ntawm kHz-chav kawm rov ua dua tus nqi, sib txuas lub zog siab kawg nrog lub voj voog tswj lub luag haujlwm. Rau cov txheej txheem thev naus laus zis ntawm yuav ua li cas QCW txuas txuas txuas nrog thiab CW ua tiav, saibQCW fiber ntau laser vuam tshuab saib tag. Rau lub ncov - fais fab mechanics qab lub tsheb ciav hlau mem tes, saibQCW pulse qauv thiab lub zog siab.

Xav txog kev siv lub tshuab pulsed raws li tus neeg tsav tsheb pawg: txhua lub pulse muab lub zog muaj zog, kev cuam tshuam hauv zos, ces cov khoom txias ua ntej lub mem tes tom ntej tuaj txog. Qhov tshwm sim yog qhov sib sib zog nqus, nqaim cua sov- thaj tsam cuam tshuam (HAZ) thiab qhov sib kis tsawg kawg nkaus. Kev txuas txuas txuas ntxiv yog zoo li cov ntsia hlau ruaj khov: qis dua ib tus neeg lub zog pulse, tab sis ntau ntau hits ib ob, yog li cov cua sov ntws tsis tu ncua raws seam. Lub pas dej weld nyob twj ywm qhib ntev dua, cov hlaws yog dav dua, thiab kev nkag mus ua los ntawm cov khoom siv hluav taws xob tsis tu ncua es tsis yog qhov tawg.

Nd: YAG pulsed lasers yog qhov kev xaiv classic thaum muaj kev tswj xyuas qhov kub thiab txias. Lawv lub siab ncov lub zog tuaj yeem kov yeej qhov kev cuam tshuam ntawm txhuas, tooj liab, thiab kub -coated nto, thiab lub sijhawm tawm mus ntev - lub sijhawm ntawm pulses txwv cov cua sov. Fiber CW lasers, los ntawm qhov sib piv, yeej ntawm kev ceev thiab ruaj khov: zoo heev beam zoo, siab phab ntsa-plug efficiency, thiab ntev kev pab cuam. DDLs ntxiv lwm qhov kev xaiv rau cov ntawv thov uas xav tau cov cua sov sib xws ntawm thaj chaw loj yam tsis muaj nqi fiber ntau lossis teeb pom kev zoo -pumped system.

Beam profile feem ntau tsis saib xyuas, tab sis nws txiav txim siab seb lub zog nkag mus rau cov khoom siv li cas.

CW fiber ntau lasers feem ntau tsim ibGaussian nqaj: power density is highest at the center and falls off exponentially toward the edges, giving a bell-shaped TEM₀₀ profile. Qhov kev nruj nruj ntawd tsim kom muaj qhov siab tshaj plaws ntawm kev ua kom pom tseeb, ua rau Gaussian kab teeb pom kev zoo rau siab - yam - qhov sib piv qhov tseem ceeb vuam thiab txiav npluav. Kawm paub yuav ua li cas lub zog tsom mus rau qhov sib sib zog nqus welds hauv peb qhov kev piav qhia ntawmQhov tob tob tob laser vuam ua haujlwm li cas.

Pulsed Nd:YAG thiab ntau DDL systems xa asaum- kaus mom(pav-sab saum toj) beam: lub zog tau faib yuav luag sib npaug thoob qhov chaw, nrog cov npoo ntse. Sab saum toj- cov kaus mom hlau ua kom muaj zog sib npaug ntawm thaj chaw uas tau hais tseg, uas yog qhov muaj txiaj ntsig zoo rau kev kho qhov chaw, kev siv hluav taws xob sib txuas, thiab nyias- daim ntawv sib tshooj sib txuas qhov chaw tiaj tus, rov ua dua fusion tseem ceeb tshaj qhov tob tshaj plaws.

Koj qhov kev xaiv ntawm profile yog li ntawd nyob ntawm seb qhov tseem ceeb yog qhov tob, nrawm, lossis qhov sib xws.

Raws li qhov tsis raug, CW fiber ntau laser seam yog du thiab zoo ib yam, feem ntau tshem tawm qhov xav tau rau kev sib tsoo los yog polishing. Lub hlaws yog nruam, cov ntiv taw kab yog txawm, thiab cov cua kub input yog kwv yees txij thaum pib mus txog thaum xaus. Qhov no yog vim li cas automotive powertrain, roj teeb busbar, thiab tuab -phab ntsa piping daim ntaub ntawv nyiam CW fiber ntau vuam.

Nruam vuam · Semiconductor laser vuam ntawm galvanized steel los xij

Lub pulsed Nd: YAG weld yog qhov sib txawv: txhua tus mem tes ua lub suab luv luv, thiab cov hlaws khov kho qhia cov ntses paub- nplai qauv ua rau kev ua haujlwm TIG. Hauv qhov chaw- vuam hom, txhua tus mem tes tsim ib qho kev sib cais, uas yog qhov zoo tagnrho rau microelectronics, cov cuab yeej kho mob, thiab cov khoom siv sib txuas uas cov sib koom ua ke yuav tsum yog me me thiab thermally cais los ntawm cov khoom nyob ze.

Pulsed welding · Nd:YAG laser vuam ntawm stainless hlau los xij

Pulsed parameter sets yog complex tshaj CW. Tus neeg teb xov tooj yuav tsum sib npaug pulse dav, lub zog siab tshaj plaws, zaus, kev mus los ceev, thiab cov duab waveform. CW vuam, nyob rau hauv sib piv, feem ntau yog ib qho teeb meem ntawm lub hwj chim, mus ncig teb chaws ceev, thiab beam tsom txoj hauj lwm. Yog hais tias nto zoo, porosity, los yog spatter ua ib qho teeb meem, xa mus rau lublaser vuam tshuab troubleshootingphau ntawv qhia rau systematic diagnostics.

CW fiber ntau lasers tau coj kev lag luam tseem ceeb los ntawm CO₂ thiab Nd:YAG systems. Lawv ruaj khov dua, muaj zog ntau dua -ntau dua, nrawm dua, thiab yooj yim rau kev koom ua ke nrog cov neeg hlau thiab Kev Lag Luam 4.0 cov kab ntau lawm. Tej yam yeej muaj xws li tsheb kis tau tus mob gears, engine Cheebtsam, roj teeb enclosures, busbars, thiab tuab-section stainless hlau yeeb nkab.

Nd:YAG pulsed lasers khaws tus nqi txhua qhov chaw uas tsis tshua muaj hluav taws xob tag nrho yog qhov kev txhawj xeeb dhau: kub- cov khoom siv hluav taws xob, micro-welded cov cuab yeej kho mob, nyias- cov phab ntsa aerospace qhov chaw, thiab cov hlau muaj txiaj ntsig zoo. QCW fiber ntau lasers sib tw ntawm no ib yam nkaus, muab lub zog siab tshaj plaws nrog cov programmable pulse shaping, tab sis Nd:YAG systems tseem muab cov nqi qis dua thiab kev saib xyuas yooj yim hauv ntau qhov me me -ntau thiab haujlwm- khw muag khoom.

Rau qhov qis- kho ntim, qauv ua haujlwm, lossis ntawm - qhov chaw yooj yim, ahandheld laser welder Basicskev teeb tsa tuaj yeem txuas ob hom, cia cov neeg siv hloov pauv ntawm CW nyias- daim ntawv ua haujlwm thiab kho qhov chaw hloov pauv yam tsis hloov lub tshuab.

Saib tom ntej, beam shaping, multi-beam, thiab hybrid laser txheej txheem yuav plam cov kab ntxiv. Lo lus nug tsis yog "CW lossis pulsed?" tab sis "qhov kev sib xyaw ua ke ntawm qhov chaw, kab teeb pom kev zoo, thiab kev tswj mem tes daws qhov kev thov ntawm tus nqi qis tshaj plaws?"

Siv lub moj khaum no kom luv - teev cov hom zoo ua ntej thov ib nqe lus:

Table 2: Kev txiav txim siab matrix rau pulsed vs nruam laser vuam. Cov txiaj ntsig yog cov yam ntxwv ntawm cov txheej txheem, tsis yog kev lees paub tseeb. Qauv -weld validation yog pom zoo ua ntej ntau lawm tso tawm.

Cov kab hauv qab:Xaiv cov pulsed thaum qhov tsis tuaj yeem tiv taus cua sov, qhov sib koom ua ke me me, los yog cov khoom siv tau zoo heev. Xaiv CW thaum ceev, qhov tob tob, thiab tus nqi qis ib meter tseem ceeb tshaj qhov txo qis HAZ. Rau cov haujlwm uas zaum hauv nruab nrab, QCW fiber ntau vuam lossis dual -mode system tej zaum yuav yog txoj hauv kev yooj yim tshaj plaws.

Yog tias koj xav tau cov khoom tsim tawm -npaj kev daws teeb meem, xauj peb qhov ntau ntawmindustrial laser vuam tshuablos yog tshawb nrhiav6-axis QCW fiber ntau laser vuamrau automated QCW daim ntawv thov. Xa koj cov ntaub ntawv thiab cov ntaub ntawv sib koom ua ke mus rauinfo@kingslaser.comrau ib qho piv txwv -weld ntsuam xyuas.