Laser vuam tau tshwm sim los ua ib txoj hauv kev ua tau zoo thiab meej rau kev koom nrog cov ntaub ntawv, tshwj xeeb yog aluminium alloys uas tau siv dav hauv kev lag luam xws li aerospace mus rau tsheb vim lawv lub teeb yuag thiab corrosion-resistant zog. Qhov zoo ntawm laser welds nyob rau hauv aluminium alloys yog hnyav heev los ntawm ntau yam txheej txheem tsis, uas cov txheej txheem viav vias tsis ua lub luag haujlwm tseem ceeb. Kev nkag siab thiab ua kom zoo dua cov kev ntsuas no yog qhov tseem ceeb rau kev ua tiav cov welds zoo nrog qhov tsis xws luag.
Nkag siab cov txheej txheem viav vias hauv Laser Vuam
Cov txheej txheem viav vias, tseem hu ua beam oscillation lossis weaving, yuav tsum txhob txwm txav cov nqaj laser raws txoj kev vuam. Qhov kev txav no tuaj yeem yog linear, ncig, lossis nyuaj, nyob ntawm qhov sib koom ua ke ntawm kev sib koom ua ke thiab cov txiaj ntsig xav tau. Nyob rau hauv aluminium alloy laser welding, cov txheej txheem viav vias yog qhov tseem ceeb tshwj xeeb vim yog cov khoom siv thermal conductivity thiab susceptibility rau qhov tsis xws luag xws li porosity thiab cracking.
Qhov tseem ceeb viav vias txheej txheem Parameter
Swing Amplitude thiab zaus:
Amplitude:Qhov no yog hais txog qhov dav ntawm txoj kev oscillation ntawm lub laser beam. Qhov loj amplitude nce qhov dav ntawm cov hlaws weld, cuam tshuam rau kev faib hluav taws xob thiab cov khoom ntws.
Ntau zaus:Qhov zaus txiav txim siab ntau npaum li cas lub laser beam oscillates ib chav tsev ntev ntawm weld. Cov zaus siab dua tuaj yeem txo qhov loj ntawm qhov chaw kub ntxhov (HAZ) thiab txhim kho cov pas dej sib txuas.
Swing Pattern:
Linear vs. Circular:Linear oscillations yog qhov yooj yim dua thiab feem ntau siv rau cov welds ncaj, thaum cov qauv ncig yog qhov zoo rau kev sib koom ua ke geometries. Kev xaiv tus qauv zoo tuaj yeem cuam tshuam qhov zoo ntawm vuam thiab zoo li.
Overlap thiab Kauj Ruam Loj:
Sib tshooj:Hais txog qhov sib tshooj ntawm qhov sib law liag oscillation. Optimal overlap ua kom cov cua sov tsis sib xws thiab txo qhov kev pheej hmoo ntawm kev ua tsis tiav fusion.
Kauj ruam Loj:Qhov kev ncua deb ntawm txhua txoj kev oscillation. Cov kauj ruam me me muab kev tswj xyuas zoo dua ntawm cov khoom siv hluav taws xob thiab kev tsim cov hlaws dai.
Kev cuam tshuam ntawm Weld Quality
1. Porosity thiab Solidification Cracking:
Porosity:Qhov tsis zoo viav vias tsis tuaj yeem ua rau muaj roj nkag, ua rau muaj qhov porosity hauv cov hlaws vuam. Optimizing tsis xws li zaus thiab sib tshooj pab txo qhov teeb meem no.
Solidification Cracking:Cov cua txias ceev ceev hauv aluminium alloys tuaj yeem ua rau tawg. Tswj oscillation qauv thiab cov tsis haum yuav txo qhov kev pheej hmoo ntawm kev tawg los ntawm kev tswj cov thermal gradients.
2. Weld Bead Geometry thiab Penetration:
Bead Geometry:Amplitude thiab qauv ncaj qha cuam tshuam rau qhov dav thiab qhov profile ntawm cov hlaws weld. Uniform oscillation tuaj yeem tsim cov hlaws geometry zoo ib yam thiab txhim kho kev zoo nkauj.
Kev nkag mus:Kev tswj tau zoo ntawm cov khoom siv hluav taws xob thiab kev faib tawm ua kom cov vuam nkag qhov tob, ua kom muaj kev sib koom ua ke muaj zog.
3. Microstructure thiab Mechanical Properties:
Microstructure:Kev sib tw viav vias kom zoo ua rau muaj kev ua kom zoo dua microstructure, txhim kho cov khoom siv xws li tensile zog thiab qaug zog.
Heat-Affected Zone (HAZ):Kev txo qis HAZ loj los ntawm kev ua kom zoo dua oscillation txo qhov ua tau ntawm softening lossis tsis muaj zog ntawm cov khoom nyob ib sab.
Cov kev sim thiab kev ua kom zoo
Kev ua tiav qhov zoo tshaj plaws viav vias txheej txheem tsis feem ntau suav nrog kev sim sim thiab kev hloov kho dua tshiab:
Design of Experiments (DOE):Systematic variation of parameters los txheeb xyuas qhov chaw zoo tshaj plaws rau cov alloys tshwj xeeb thiab kev sib koom ua ke.
In-Situ Monitoring:Kev saib xyuas lub sijhawm tiag tiag ntawm cov yam ntxwv tseem ceeb weld (piv txwv li, kub, hlaws profile) los kho qhov tsis muaj zog.
Modeling thiab Simulation:Cov cuab yeej suav tau pab hauv kev kwv yees qhov zoo ntawm vuam raws li cov khoom siv nkag, ua kom cov kev ua kom zoo dua qub.
Xaus
Nyob rau hauv xaus, lub viav vias txheej txheem tsis nyob rau hauv aluminium alloy laser welding ho cuam tshuam weld zoo los ntawm kev tswj cov cua sov input, cov khoom ntws, thiab microstructural txoj kev loj hlob. Ua kom tau zoo welds yuav tsum tau ua tib zoo xav thiab ua kom zoo ntawm qhov tsis xws li amplitude, zaus, qauv, sib tshooj, thiab cov kauj ruam loj. Kev nce qib hauv cov txheej txheem saib xyuas thiab simulation cov txheej txheem txuas ntxiv txhim kho peb lub peev xwm los kwv yees thiab ua kom zoo dua cov kev txwv no, yog li txhim kho kev ntseeg tau thiab kev ua tau zoo ntawm aluminium alloy welds thoob plaws ntau yam kev siv. Kev nkag siab txog cov kev cuam tshuam no txhawb nqa cov engineers thiab cov kws tshawb fawb los thawb cov ciam teb ntawm laser vuam tshuab ntxiv, ua tau raws li cov kev xav tau hloov zuj zus mus rau lub teeb yuag, ruaj khov, thiab cov ntaub ntawv ua tau zoo hauv kev tsim khoom niaj hnub no.
Los ntawm kev paub qhov tsis sib xws ntawm cov txheej txheem viav vias, lub peev xwm rau kev tsim kho tshiab hauv aluminium alloy laser welding tseem muaj zog, cog lus txuas ntxiv kev nce qib hauv kev ua tau zoo, kev ua tau zoo, thiab ntau yam hauv vuam tshuab.
Xi'an Guosheng Laser Technology Co., Ltd. yog ib lub tuam txhab high-tech tshwj xeeb hauv R & D, tsim thiab muag cov tshuab laser cladding tsis siv neeg, 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.