01 Daim Ntawv Qhia
Txoj kev tshawb no delves rau hauv kev txiav txim siab ntawm lub vuam lub kaum sab xis, cov txheej txheem tseem ceeb, ntawm qhov vuam zoo thaum lub laser -MAG hybrid vuam ntawm 14 hli tuab AH36 siab- lub zog nkoj phaj hlau. Cov txheej txheem vuam tsoos tau ntsib cov teeb meem xws li cov cua sov ntau dhau - thaj chaw cuam tshuam, vuam deformation, thiab nyuaj rau kev tswj cov microstructure thaum cuam tshuam nrog cov ntaub ntawv tuab. Lub laser-MAG hybrid vuam tshuab, los ntawm kev sib koom ua ke ntawm laser thiab arc, tuaj yeem txhim kho vuam zoo, tshwj xeeb tshaj yog tom qab nrov ntawm siab - lasers, uas qhia tau zoo heev hauv cov phaj tuab vuam zoo. Txawm hais tias lub laser- hom kev taw qhia muaj qhov zoo dua ntawm arc{11}} kev taw qhia hom, xws li kev nkag mus tob dua thiab arc stability, hauv cov phaj tuab, cov txheej txheem tsis raug (xws li, vuam lub kaum sab xis) tseem tuaj yeem ua rau muaj qhov tsis xws luag xws li tawg, tawg, thiab rov qab hump. Cov kev hloov me me hauv lub vuam lub kaum sab xis tuaj yeem cuam tshuam qhov kev coj tus cwj pwm zoo ntawm lub pas dej molten, keyhole stability, thiab qhov kawg weld tsim zoo.
Yog li, txoj kev tshawb no tsom mus rau qhov sib txawv ntawm cov ces kaum vuam, siv high -kev yees duab ceev thiab "sandwich" txoj kev los soj ntsuam tus cwj pwm tsis zoo ntawm lub pas dej molten thiab keyhole hauv lub sijhawm tiag tiag, ua ke nrog cov teeb liab hluav taws xob tsom xam, txhawm rau qhia tawm qhov cuam tshuam ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv. kev taw qhia theoretical rau optimizing siab -lub zog laser-MAG hybrid vuam txheej txheem.
Daim duab 02 qhia tias qhov tsis ruaj khov rau cov txheej txheem vuam yog: laser zog ntawm 10.5kW, vuam ceev ntawm 1.8m / min, xaim pub ceev ntawm 12m / min, nrog pre- teeb pob tw ntawm 0.5mm. Thaum lub sij hawm vuam, lub shielding gas siv muaj 80% Ar thiab 20% CO2, nrog ib tug txaus tus nqi ntawm 15L / min. Daim duab 1 qhia txog schematic ntawm cov txheej txheem vuam. Qhov kev sim feem ntau txawv ntawm lub kaum sab xis ntawm lub laser thiab vuam kev taw qhia, tsim plaub lub kaum sab xis, txhais lub kaum sab xis ntawm lub laser thiab vuam kev taw qhia raws li , thiab lub kaum sab xis ntawm lub arc thiab lub laser li, nrog rau cov vuam kub qhov chaw lub kaum sab xis raws li qhia hauv daim duab 2.
Daim duab 3 qhia txog macroscopic morphology thiab tus ntoo khaub lig sib thooj -sectional morphology ntawm laser-MAG composite welds ntawm qhov sib txawv vuam. Thaum lub vuam lub kaum sab xis yog 75 degree, qhov vuam tsim tsis zoo, nrog rau pem hauv ntej ntawm lub vuam nthuav dav ib ntus dav -qaum- cov hniav dav, thaum lub nraub qaum muaj me me thiab txuas ntxiv. Thaum lub vuam lub kaum sab xis nce mus rau 82.5 degree, qhov vuam tsim zoo yog qhov zoo tshaj plaws, nrog rau pem hauv ntej thiab rov qab txuas ntxiv yam tsis muaj humps, nthuav tawm cov duab goblet. Ntxiv mus, qhov vuam lub kaum sab xis mus rau 88.75℃ua rau ib feem ntawm lub cev tsis sib haum xeeb nyob rau pem hauv ntej ntawm lub vuam, nrog ob peb lub me me humps nyob tom qab. Thaum lub vuam lub kaum sab xis nce mus txog 97.5 degree, pem hauv ntej ntawm lub vuam qhia tau hais tias lub sij hawm sib sib zog nqus ({13}} tag nrho cov tshwm sim nrog tsis sib xws, thaum loj humps nyob rau tom qab.
Raws li kev txhim kho 'sandwich' txoj kev, lub siab - lub koob yees duab ceev tau siv los soj ntsuam tus cwj pwm tsis zoo ntawm lub laser-MAG hybrid vuam keyhole hauv lub sijhawm ntawm sab. Nyob rau ntawm lub kaum sab xis ntawm 75 degree, lub qhov tseem ceeb tau nthuav tawm cov txheej txheem dynamic raws sijhawm, uas yog rov qhib thiab kaw hauv kev mus. Kev loj hlob, detachment thiab kev hloov pauv ntawm cov tee dej cuam tshuam nrog kev coj tus cwj pwm ntawm qhov keyhole.
