Laser vuam tau tshwm sim raws li ib tug tseem ceeb technology nyob rau hauv niaj hnub manufacturing, paub txog nws precision, ceev, thiab muaj peev xwm mus koom ntau yam ntaub ntawv nrog tsawg thermal distortion. Txawm li cas los xij, kev ua haujlwm ntawm laser vuam yog hnyav heev los ntawm qhov zoo ntawm kev npaj nto. Nyob rau hauv tsab xov xwm no, peb tshawb txog qhov cuam tshuam ntawm kev npaj nto ntawm laser vuam, tshuaj xyuas seb muaj ntau qhov chaw ntawm qhov chaw cuam tshuam li cas, kev ruaj ntseg, thiab kev ua haujlwm tag nrho.
Nkag siab txog Laser Vuam
Laser vuam siv lub teeb laser tsom rau yaj thiab fuse cov ntaub ntawv, tsim kom muaj kev sib koom ua ke nrog cov cheeb tsam uas muaj cua sov tsawg (HAZ). Cov txheej txheem yog tswj tau heev, tso cai rau cov welds meej nrog nqaim seams. Qhov zoo ntawm qhov vuam, txawm li cas los xij, muaj kev cuam tshuam loj heev los ntawm qhov xwm txheej ntawm qhov chaw tau koom nrog. Kev tsis zoo ntawm qhov chaw, xws li cov kab mob, oxides, thiab kev tsis sib xws, tuaj yeem ua rau tsis zoo ntawm cov txheej txheem laser vuam.
Kev npaj nto thiab nws qhov tseem ceeb
Kev npaj deg yuav tsum tau ntxuav, smoothing, thiab qee zaum txheej txheej rau welded. Lub hom phiaj tseem ceeb yog tshem tawm cov kab mob, xyuas kom haum zoo, thiab txhim kho qhov zoo ntawm laser vuam. Qhov tseem ceeb ntawm kev npaj nto yog underscored los ntawm nws cov kev cuam tshuam rau ntau yam tseem ceeb ntawm laser vuam:
1. Weld Zoo
Qhov zoo ntawm qhov vuam yog ncaj qha ntsig txog qhov xwm txheej ntawm qhov chaw. Cov kab mob xws li roj, roj, xeb, thiab hmoov av tuaj yeem ua rau ntau yam teeb meem:
Porosity:Cov pa paug tuaj yeem ua rau cov pa nkag mus rau hauv lub pas dej ua ke, ua rau cov porosity thiab tsis muaj zog welds.
Kev suav nrog:Cov ntaub ntawv txawv teb chaws tuaj yeem nkag mus rau hauv qhov vuam, cuam tshuam lub zog thiab kev ncaj ncees.
Weak Bonds:Oxides thiab lwm cov yeeb yaj kiab saum npoo tuaj yeem ua cov teeb meem, ua rau tsis tiav fusion thiab cov pob qij txha tsis muaj zog.
Kev tshawb fawb los ntawm Zhang et al. (2020) pom tau hais tias welds ua nrog cov chaw npaj kom zoo tau nthuav tawm cov porosity qis dua piv rau cov uas muaj cov kab mob los yog tsis kho. Cov kev tshawb fawb pom tau hais tias kev ntxuav qhov chaw siv cov txheej txheem xws li tshuaj degreasing lossis abrasive blasting ua rau muaj zog tensile ntau dua thiab muaj qhov tsis xws luag.
2. Txheej Txheem Stability
Kev npaj deg cuam tshuam rau kev ruaj ntseg ntawm cov txheej txheem laser vuam. Qhov chaw tsis sib luag los yog tsis muaj paug tuaj yeem ua rau muaj kev hloov pauv hauv lub pas dej ua ke, ua rau tus cwj pwm arc tsis ruaj khov thiab qhov tsis zoo ntawm cov vuam zoo. Lub laser beam yuav tsum tau ib tug huv, niaj hnub nto kom pom tseeb thiab ua tau zoo.
Hauv kev siv tswv yim, qhov chaw tsis sib xws tuaj yeem ua rau cov welds tsis ruaj khov, vim tias lub teeb laser tuaj yeem nkag mus tob rau hauv qee qhov chaw dua li lwm tus. Kev tshawb fawb los ntawm Nguyen et al. (2019) pom tias qhov roughness ntawm qhov chaw thiab kev sib kis tau cuam tshuam rau qhov sib xws ntawm cov hlaws hlaws, nrog rau kev sib raug zoo ntawm qhov kev npaj zoo thiab cov txheej txheem ruaj khov.
3. Kev Tswj Kub Kub
Cov txheej txheem saum npoo cuam tshuam rau kev hloov hluav taws xob thiab kev tswj xyuas thaum vuam. Cov kab mob tuaj yeem ua rau muaj cua sov hauv cheeb tsam los yog txias heev, cuam tshuam rau tag nrho cov thermal tswj ntawm vuam. Qhov chaw tsis sib xws kuj tuaj yeem cuam tshuam rau kev faib tawm ntawm cov cua sov, uas ua rau muaj teeb meem xws li warping lossis distortion.
Kev tshawb fawb los ntawm Liu et al. (2021) tau qhia tias qhov chaw uas muaj oxidation ntau dhau los yog muaj kab mob sib kis tau ua rau cov khoom siv hluav taws xob tsis sib xws, uas cuam tshuam rau lub vuam cov thermal profile. Kev npaj kom raug, suav nrog kev tshem tawm oxide thiab qhov chaw smoothing, kom ntseeg tau tias muaj cua sov zoo sib xws thiab txo qis thermal distortion.
Cov txheej txheem ntawm Kev Npaj Nto
Ntau txoj hauv kev tau ua haujlwm los npaj cov chaw rau laser vuam, txhua tus muaj nws tus kheej zoo thiab cov kev txwv:
1. Kho tshuab ntxuav
Cov txheej txheem tu tshuab muaj xws li abrasive blasting, sib tsoo, thiab txhuam hniav. Cov txheej txheem no muaj txiaj ntsig zoo ntawm kev tshem tawm xeb, nplai, thiab lwm yam kab mob. Abrasive blasting, piv txwv li, yog tshwj xeeb tshaj yog pab tau rau kev npaj cov cheeb tsam loj los yog cov kab mob hnyav heev.
Txawm li cas los xij, kev tu neeg kho tshuab qee zaum tuaj yeem qhia txog qhov roughness ntxiv, uas yuav xav tau kev kho mob ntxiv. Kev xaiv ntawm abrasives thiab cov txheej txheem yuav tsum tau ua tib zoo txiav txim siab kom tsis txhob hloov qhov chaw nyob rau hauv txoj kev uas yuav cuam tshuam rau weld zoo.
2. Tshuaj ntxuav
Kev ntxuav tshuaj yog siv cov kuab tshuaj, cov kua qaub, lossis cov tshuaj alkaline kom tshem tawm cov kab mob. Txoj kev no muaj txiaj ntsig zoo rau kev tshem cov roj, roj, thiab oxides. Piv txwv li, phosphoric acid feem ntau yog siv los tshem tawm xeb, thaum acetone yog siv los degrease qhov chaw.
Kev tu tshuaj lom neeg feem ntau nyiam rau nws lub peev xwm kom ua tiav qib siab ntawm kev huv yam tsis muaj kev hloov pauv ntawm qhov chaw zoo nkauj. Txawm li cas los xij, nws yuav tsum tau tuav thiab pov tseg cov tshuaj kom raug, thiab qee txoj kev yuav tsis haum rau txhua yam ntaub ntawv.
3. Laser ntxuav
Laser tu yog cov txheej txheem siab heev uas siv lub teeb laser los tshem tawm cov kab mob ntawm qhov chaw. Txoj kev no yog qhov tseeb heev thiab tuaj yeem xaiv hom kab mob tsis muaj kev puas tsuaj rau cov khoom siv hauv qab. Nws yog qhov tshwj xeeb tshaj yog muaj txiaj ntsig rau cov khoom muag muag lossis cov khoom muaj txiaj ntsig zoo uas cov txheej txheem ib txwm ua yuav hnyav dhau.
Txawm hais tias laser tu muaj kev tswj tau zoo thiab muaj kev cuam tshuam tsawg heev ntawm cov substrate, nws tuaj yeem kim dua thiab yuav xav tau cov cuab yeej tshwj xeeb.
Case Studies thiab Daim Ntawv Thov Kev Lag Luam
Ntau qhov kev tshawb fawb qhia txog lub luag haujlwm tseem ceeb ntawm kev npaj nto hauv laser vuam:
Automotive Kev Lag Luam:Hauv kev tsim tsheb, laser vuam yog siv los koom nrog ntau yam hlau. Kev kawm los ntawm Kim et al. (2022) tau taw qhia tias txhim kho cov txheej txheem kev npaj saum npoo av, xws li kev tu kom huv thiab deburring, ua rau cov welds zoo dua thiab txo cov nqi rov ua haujlwm hauv kev tsim cov tsheb lub cev.
Aerospace Kev Lag Luam:Rau aerospace Cheebtsam, qhov twg precision thiab kev ntseeg siab yog qhov tseem ceeb, kev npaj nto plays lub luag haujlwm tseem ceeb. Kev tshawb fawb los ntawm Chen et al. (2021) pom tau hais tias optimized nto npaj txoj kev ua rau kev txhim kho qaug zog tiv thaiv thiab tag nrho cov kev ua tau zoo ntawm laser-welded aerospace qhov chaw.
Xaus
Kev npaj nto yog ib qho tseem ceeb ntawm laser vuam uas cuam tshuam qhov zoo ntawm vuam, txheej txheem kev ruaj ntseg, thiab kev tswj kom sov. Los ntawm kev siv cov txheej txheem tu thiab smoothing zoo, cov tuam ntxhab tuaj yeem txhim kho kev ua haujlwm ntawm cov txheej txheem laser vuam, ua rau muaj zog dua, txhim khu kev qha welds nrog tsawg dua.
Raws li laser vuam tshuab txuas ntxiv mus, qhov tseem ceeb ntawm kev npaj nto yuav tseem ceeb heev kom ua tiav cov txiaj ntsig zoo. Kev xaiv txoj kev npaj yuav tsum tau ua raws li cov kev cai tshwj xeeb ntawm daim ntawv thov thiab cov ntaub ntawv koom nrog, kom ntseeg tau tias qhov chaw huv si, zoo ib yam, thiab tsis muaj kab mob. Los ntawm kev nkag siab thiab siv cov txheej txheem kev npaj ua haujlwm zoo, kev lag luam tuaj yeem siv tag nrho cov peev txheej ntawm laser vuam tshuab, tsav kev txhim kho hauv kev tsim khoom thiab cov khoom zoo.
Xi'an Guosheng Laser Technology Co., Ltd. yog ib lub tuam txhab high-tech tshwj xeeb hauv R & D, tsim thiab muag ntawm cov tshuab laser tsis siv neeg cladding, high-speed laser cladding tshuab, laser quenching tshuab, laser vuam tshuab thiab laser 3D tshuab luam ntawv. Peb cov khoom raug nqi zoo thiab muag hauv tsev thiab txawv teb chaws. Yog tias koj txaus siab rau peb cov khoom, thov hu rau peb ntawm bob@gshenglaser.com.