Aluminium thiab aluminium alloy nrog nws lub teeb yuag, siab zog, corrosion kuj thiab lwm yam ntxwv, yog dav siv nyob rau hauv kev tsim kho, tsheb thauj mus los, automotive, electronics, ntim thiab aerospace thiab lwm yam kev lag luam. Nrog rau kev txhim kho thev naus laus zis, aluminium alloy vuam txheej txheem tau raug txhim kho. Laser vuam yog siv dav siv vuam tshuab hauv kev ua lag luam, uas muaj qhov zoo ntawm lub zog hluav taws xob kub qhov chaw siab, me me tshav kub cuam tshuam cheeb tsam, tsawg deformation, txuag hluav taws xob thiab txo kev noj.
Nyob rau hauv cov txheej txheem vuam niaj hnub, vim muaj cov khoom tshwj xeeb ntawm txhuas, laser vuam aluminium thiab aluminium alloy yuav nyuaj rau tswj lub laser tsom thiab vuam pas. Thaum tus welder teeb tsa cov txheej txheem tsis raug lossis tsis muaj kev nplua nuj, tej zaum yuav muaj teeb meem xws li porosity, tawg deformation, dub weld thiab non-fusion ntawm ntug, uas cuam tshuam rau vuam zoo thiab kev ua tau zoo. Tom ntej no, peb yuav qhia txog cov teeb meem thiab cov kev daws teeb meem uas tau ntsib los ntawm vuam aluminium.
Pores
Qhov teeb meem tseem ceeb tau ntsib thaum siv laser vuam aluminium yog porosity. Thaum lub sij hawm welding txheej txheem, lub laser beam ua rau cov hlau nyob rau hauv lub molten pas dej ua ke fluctuate, thiab thaum cov roj daig nyob rau hauv cov hlau expands thiab overflows, lub porosity yuav tshwm sim. Tsis tas li ntawd, alumina films yuav cuam tshuam kev sib txuas ntawm cov hlau, nqus dej thiab yooj yim tsim impurities, thiab txhawb kev tsim cov pores.
Qhov tsim ntawm qhov pores yuav ua rau lub zog weld tsis muaj zog, txo qhov kev tiv thaiv corrosion, thiab tsis zoo welds. Feem ntau, cov kev ntsuas hauv qab no raug pom zoo:
Kho qhov tsim nyog lub zog laser kom ntseeg tau tias cov khoom siv hluav taws xob zoo ib yam.
Thaum vuam cov ntawv nyias, nws raug nquahu kom ua kom nrawm kom txo tau lub sijhawm ntawm cov pa nthuav dav hauv cov hlau;
Thaum welding tuab daim hlau, nyob rau hauv cov ntaub ntawv ntawm cov khoom preheating, lub vuam ceev yuav raug txo kom ntseeg tau cov kev ua tau zoo ntawm lub vuam.
Weld nto yog chemically los yog mechanically ntxuav kom txo tau qhov cuam tshuam ntawm impurities ntawm vuam zoo.
Tswj kev siv cov pa tiv thaiv los yog fluxes kom txo tau oxidation thiab txo cov roj tsim.
Kub tawg
Vim yog qhov kub thiab txias tsim thaum lub sij hawm vuam txheej txheem, cov txhuas yuav nrawm nrawm thiab sib cog lus, thiab tsim cov ntsiab lus kev ntxhov siab. Yog hais tias lub weld solidification lub sij hawm luv luv, lub ntsiab lus ntawm kev ntxhov siab tsis tso tawm, lawv yuav ua rau aluminium tawg thiab kub tawg. Tsis tas li ntawd, thaum kev tiv thaiv cov nyhuv ntawm cov vuam tsis zoo, nws yuav yooj yim rau oxidize thiab tshwm kub tawg.
Txhawm rau kom tsis txhob muaj qhov xwm txheej no, peb yuav tsum tswj cov cua sov thaum lub sijhawm vuam, ua kom tag nrho cov vuam qhov chaw ua ntej vuam, thiab kho cov roj tiv thaiv.
Weld blackening
Laser welding aluminium blackening feem ntau yog tshwm sim los ntawm lub zog laser tsis txaus, tus nqi defocusing tsis hloov kho rau tus nqi tsim nyog, lossis lub lens laser puas. Nyob rau hauv cov ntaub ntawv no, lub zog ntawm lub laser tsis ncav cuag lub melting pib ntawm oxide txheej nyob rau saum npoo ntawm txhuas, ua rau cov txhuas sib tov nrog huab cua thiab impurities, ua rau blackening ntawm lub vuam qhov chaw.
Txhawm rau kom tau txais qhov zoo thiab kev zoo nkauj ntawm vuam, nws raug nquahu kom xaiv thawj lub zog tsim nyog thiab teeb tsa tus nqi defocusing kom raug nyob rau hauv cov txheej txheem ntawm txhuas vuam. Qhov thib ob, koj tuaj yeem tshawb xyuas seb lub lens tiv thaiv puas puas.
Ntug ntawm qhov tom yog tsis fused
Thaum laser vuam ntawm txhuas, txoj kev vuam tsis txuas ntxiv, ntxhib thiab tsis sib xws, thiab tsis sib xws corrugating yog ib qho tshwm sim. Cov laj thawj tseem ceeb yog qhov sib txawv ntawm qhov sib txuas loj dhau, qhov chaw laser offset, laser fais fab tsis txaus thiab loj heev defocus.
Ua ntej, peb tuaj yeem txo qhov sib txawv hauv paus ntawm qhov vuam workpiece. Qhov thib ob, lub laser beam tsom xam yog hloov kho los txiav txim qhov tseeb qhov chaw. Tsis tas li ntawd, peb tseem tuaj yeem ua kom cov vuam zoo ntawm txhuas tom qab melting los ntawm kev ua kom lub zog laser thiab kho qhov chaw ua kom pom tseeb ntawm tus nqi defocus.
Vim qhov tshwj xeeb ntawm txhuas, cov txheej txheem ntawm laser vuam kuj yuav ntsib lwm yam teeb meem. Ua ntej welding aluminium thiab aluminium alloys, peb yuav tsum tsis tsuas yog xav txog kev ruaj ntseg ntawm vuam zoo, tab sis kuj xav txog cov tsos ntawm vuam. Nrog rau kev txhim kho ntawm laser technology thiab aluminium manufacturing technology, cov txheej txheem ntawm laser vuam aluminium kuj tau zoo heev, muab lub hauv paus ruaj khov rau tsim lub teeb yuag hlau structural Cheebtsam hauv tsheb, aerospace thiab lwm yam kev lag luam.
Xi'an Guosheng Laser Technology Co., Ltd. yog lub tuam txhab high-tech tshwj xeeb hauv R & D, tsim thiab muag 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.