Yuav ua li cas Friction Stir Vuam txheej txheem siv nyob rau hauv txias phaj ntau lawm
Vuam thev naus laus zis tau txhim kho tas li, thiab kev sib txhuam txhuam vuam muaj qhov zoo ntawm cov khoom siv kho tshuab zoo, tus nqi qis, kev ua haujlwm siab, ntsuab thiab tsis muaj kuab paug ntawm kev sib koom ua ke, Dav siv los ntawm cov tuam txhab hauv tsev thiab txawv teb chaws. Tsis tas li ntawd, kev sib tham txog kev kawm thiab kev tshawb fawb txog kev sib txhuam txhuam vuam kuj nrov heev thiab muaj txiaj ntsig zoo rau kev tshawb fawb. Taw qhia txog aluminium alloys thiab Daim ntawv thov keeb kwm yav dhau los thiab kev ua haujlwm ntawm kev sib txhuam do vuam tau piav qhia, ua raws li cov ntsiab lus ntawm kev tshawb fawb tam sim no ntawm aluminium alloy kev sib txhuam do vuam tshuab thiab khoom siv. Thaum kawg, txoj kev loj hlob zeem muag ntawm aluminium alloy kev sib txhuam do vuam tau txheeb xyuas thiab sib tham.
Nyob rau hauv xyoo tas los no, welding tshuab tau txuas ntxiv txhim kho thiab tsim, thiab tam sim no ntau hom Vuam cov tswv yim tshwm sim tsis tu ncua, nrog rau ntau yam kev siv vuam xws li kev sib txhuam do vuam, kev sib txhuam overlay vuam, electron beam welding, laser vuam, thiab kev sib xyaw vuam txuas ntxiv tuaj yeem txhim kho zoo heev. kev vuam ntawm cov khoom sib txawv raws li kev ua haujlwm sib txawv Muaj peev xwm.
Tam sim no, cov neeg muaj kev txaus siab rau kev tshawb fawb thiab kev loj hlob ntawm kev sib txhuam do welding tseem yog siab heev. Cov ntaub ntawv pov thawj qhia tau hais tias Tuam Tshoj tau dhau los ua lub teb chaws muaj peev txheej ntau tshaj plaws hauv kev tshawb fawb thiab kev loj hlob ntawm cov thev naus laus zis hauv ntiaj teb niaj hnub no, uas qhia tau tias kev sib txhuam ntawm kev sib txhuam vuam tau tsim kho sai hauv Suav teb thiab tseem ceeb heev rau nws qhov kev tshawb fawb tob tob.
Aluminium alloy yog ib qho alloy ua los ntawm kev siv aluminium elemental hlau raws li cov khoom siv rau tag nrho cov alloy manufacturing, thiab ntxiv ib co ntawm lwm yam yuav tsum tau hlau los yog non-metallic ntsiab rau lub hauv paus khoom thaum lub sij hawm ua. Aluminium alloy cov ntaub ntawv muaj cov yam ntxwv ntawm lub zog siab ntom ntom, zoo castability, zoo hluav taws xob ua kom sab nraud corrosion, thiab kev ua tau zoo heev vuam. Lawv tau dav siv nyob rau hauv aerospace teb.
Tsis tas li ntawd, nws tseem muaj kev lag luam siab heev thiab daim ntawv thov muaj txiaj ntsig zoo, nrog rau kev thov dav dav. Hauv kev lag luam aerospace kev lag luam, vuam tshuab ntawm aluminium alloys kuj yog cov txheej txheem dav siv. Ntau cov khoom siv aluminium alloy yuav tsum tau welded ua ntej muab tso rau hauv kev siv. Kev sib txhuam do vuam yog dav siv nyob rau hauv aluminium alloy vuam vim nws zoo heev vuam kev ua tau zoo, siab vuam tawm los, thiab zoo vuam nyhuv.
Hauv cov txheej txheem ntawm cov khoom siv vuam thiab kev tsim khoom, cov khoom siv vuam ntawm kev sib txhuam do vuam ncaj qha ua tiav tag nrho cov vuam yam tsis muaj melting. Nyob rau hauv cov txheej txheem vuam ntawm kev sib txhuam do vuam, kev sib txhuam thiab agitation ntawm cov ntaub ntawv uas yuav tsum tau, lub xub pwg nyom ntawm lub clamping ntaus ntawv, thiab tus ntiv tes tshwj xeeb tsim tus pas nrig ua rau cov welded cov ntaub ntawv mus undergo yas deformation thiab sai nkag mus rau hauv lub thermoplastic flow xeev. Cov txheej txheem vuam ntawm kev sib txhuam do vuam yog ua tiav los ntawm kev sib nrig diffusion thiab dynamic recrystallization ntawm cov khoom siv vuam. Kev sib txhuam do vuam yog tsim los ntawm kev sib hloov ntawm lub taub hau nws tus kheej (clamp thiab tshwj xeeb zoo li tus ntiv tes), ntxig cov khoom siv vuam, cov khoom siv thermoplastic, thiab txav vuam ntawm lub taub hau stirring.
Thaum lub sij hawm vuam, lub workpiece yog tsau rau ntawm ib tug nruj platform siv ib tug fixture, thiab ces cov kev sib txhuam do vuam lub taub hau rotates ntawm kev kub ceev nyob rau saum npoo ntawm lub workpiece txheeb ze rau cov kev taw qhia ntawm lub workpiece qhov sib koom ua ke. Lub protruding kawg ntawm tus pas nrig tsis zoo txuas mus rau hauv cov khoom siv hlau, kev sib txhuam thiab nplawm yog nqa tawm ntawm qhov chaw vuam kom muag cov khoom siv hlau welded thiab tsim ib kab noj hniav. Tsis tas li ntawd, lub xub pwg ntawm lub gripper tuaj yeem tiv thaiv qhov muag muag thiab tawm ntawm cov ntaub ntawv hlau hauv lub xeev yas, tshem tawm cov oxide txheej ntawm qhov chaw welded. Vim tias qhov kawg ntawm kev sib txhuam do vuam rotates ntawm kev kub ceev, nws thawj zaug mus txog ib tug yas deformation xeev ua ntej welding cov khoom hlau. Cov txheej txheem deformation yog txwv los ntawm lub xub pwg nyom ntawm ncej. Tom qab ntawd, vim yog lub zog ntawm tus ntiv tes tshwj xeeb tsim, cov khoom siv yas deformation tom qab kev kub ceev stirring. Tom qab ntawd maj mam sib sau ua ke tom qab lub taub hau nplawm kom tsim tau lub vuam seam, ua tiav cov txheej txheem ntawm nplawm thiab kev sib txhuam.
Niaj hnub no, txoj kev loj hlob ntawm aluminium alloy kev sib txhuam do vuam tshuab yog ua kom zoo dua qub, thiab ntau thiab ntau dua tshiab thiab kev tshawb fawb tau siv rau aluminium alloy vuam. Muaj tsawg chav sab laug rau kev tshawb fawb ntawm tag nrho cov cuab yeej ntawm kev sib txhuam do vuam, thiab muaj kev tshawb fawb me ntsis ntawm qhov zoo ntawm cov pob qij txha welded, welded qhov chaw, thiab cov khoom hlau ntawm welded qhov chaw. Tseem muaj chaw rau kev tshawb fawb ntxiv. Aluminium alloy cov ntaub ntawv thiab kev sib txhuam do vuam kuj tau dav siv nyob rau hauv ntau yam kev lag luam, thiab aluminium alloy kev sib txhuam do vuam tshuab muaj kev loj hlob zoo.
