Tungsten Inert Gas Vuam (TIG)
● Lub hauv paus ntsiab lus: Cov txheej txheem inert gas shielded vuam, siv cov tungsten electrode thiab vuam nto li electrodes. Helium los yog argon gas yog nkag los ntawm cov electrodes los tiv thaiv arc. Lub siab tam sim no -voltage discharges melts cov xaim xaim thiab lub hauv paus hlau, siv rau vuam thiab tsim cov khoom siv aluminium alloy, thiab kho qhov tsis xws luag hauv castings.
● Nta: Yooj yim rau kev khiav lag luam, hloov tau yooj yim thiab tswj tau, hloov tau rau ntau yam kev ua haujlwm, thiab tus nqi qis; lub tshav kub- cuam tshuam cheeb tsam yog nqaim, thiab thaum siv cov xaim xaim txaus, cov vuam sib koom ua ke deformation me me, thiab tag nrho cov kev ua tau zoo ntawm kev sib koom ua ke yog siab; Cov txheej txheem vuam kev ua tau zoo yog qhov zoo thiab ruaj khov, thiab cov vuam seam yog ntom thiab zoo nkauj.
Hlau Inert Gas Vuam (MIG)
● Lub hauv paus ntsiab lus: Zoo ib yam li TIG, nws kuj yog ib qho inert gas shielded vuam txheej txheem, tab sis nws siv cov muab tub lim cov ntaub ntawv nws tus kheej raws li cov electrode. Voltage thiab tam sim no ua nyob rau hauv lub electrode kawg ntawm lub vuam hlau, generating instantaneous high voltage ntawm cov hlau thiab lub hauv paus hlau, melting lub hauv paus hlau thiab cov zawj cheeb tsam. Molten droplets los ntawm cov xaim kawg detach thiab hloov vertically mus rau lub hauv paus hlau molten pas dej ua ke, tsim lub vuam cheeb tsam.
● Nta: Daim ntawv thov txwv vim qhov softness ntawm txhuas hlau thiab tsis zoo hlau noj cov yam ntxwv; molten aluminium welding yog qhov yooj yim rau "dai yam tsis muaj dej," ua rau cov dej ntws tawm. Qhov zoo dua yog tias qhov vuam ceev nrawm dua TIG, thiab qhov vuam txav ntau rau cov khoom loj me me. Los ntawm kev kho cov hlau pub ceev, qhov vuam efficiency tuaj yeem ncav cuag ob peb meters ib feeb.
Laser Beam Vuam (LBW)
● Lub hauv paus ntsiab lus: Siab- lub zog laser pulses yog siv los ua cua sov hauv cheeb tsam me me ntawm cov khoom siv. Lub zog hluav taws xob laser diffuses rau hauv cov khoom siv los ntawm kev siv hluav taws xob, yaj cov khoom los tsim ib lub pas dej ua ke. Tom qab solidification, cov ntaub ntawv tau koom ua ke.
● Nta: Qhov chaw vuam me me, muaj zog siab - lub zog hluav taws xob, muaj peev xwm vuam cov phaj tuab, nqaim cua sov- thaj tsam cuam tshuam, thiab vuam me me deformation. Txawm li cas los xij, nws yuav tsum tau muaj kev ua haujlwm siab hauv vuam qhov chaw, cov khoom siv yog kim, thiab tus nqi siab. Aluminium, magnesium, thiab lwm yam hlau cov ntaub ntawv muaj siab laser reflectivity, ua rau welding nyuaj. Thaum lub hwj chim ceev ntawm lub workpiece nce mus txog 10⁶ W / cm², cov hlau nyob rau hauv lub rhuab cheeb tsam vaporizes nyob rau hauv ib tug luv luv lub sij hawm. Cov pa roj accumulates nyob rau hauv lub molten pas dej ua ke los tsim ib tug me me qhov, thiab tshav kub yog pauv mus rau qhov chaw ntawm lub qhov, tsim ib tug molten pas dej ua ke, uas yog lub "keyhole" nyhuv. Qhov no tuaj yeem txo qis los ntawm kev txo lub zog laser, nce vuam ceev, los yog tswj cov remelting ntawm molten core cheeb tsam kom tshem tawm npuas nyob rau hauv fusion cheeb tsam thiab txo porosity.
Friction Stir Vuam (FSW)
● Lub hauv paus ntsiab lus: Ib qho khoom tshiab-lub xeev koom nrog cov cuab yeej tsim los ntawm cov txheej txheem kev sib txhuam welding. Ib qho khoom siv tsis yog -cov khoom siv, tshwj xeeb tshaj yog zoo li tus nplawm nplawm (ua los ntawm tus pin thiab lub xub pwg nyom) tig thiab nkag mus rau qhov sib txuas ntawm cov ntaub ntawv yuav tsum tau welded. Raws li nws txav mus los ntawm cov vuam seam, qhov kub ntawm cov khoom siv vuam nce, thiab cov hlau yas tau dhau los ua cov yas deformation hnyav nyob rau hauv cov tshuab nplawm thiab forging siab. Los ntawm diffusion thiab recrystallization, ib qho khoom ntom ntom- xeev sib koom ua ke.
● Nta: Piv nrog cov txheej txheem vuam ib txwm, nws muaj qhov kub thiab txias thiab deformation tsawg dua; zoo weld mechanical zog; thiab ib qho yooj yim, kev lag luam, thiab ib puag ncig tus phooj ywg vuam txheej txheem. Txawm li cas los xij, nws yuav tsum muaj siab forging siab thiab rau pem hauv ntej tsav tsheb, uas ua rau cov khoom siv complex thiab loj, uas txwv nws txoj kev loj hlob.