Kev sib txhuam do vuam[1](FSW) yog ib qho txheej txheem vuam ntau yam uas siv cov cua sov tsim los ntawm kev sib txhuam ntawm cov cuab yeej vuam thiab cov workpiece rau hauv zos cov khoom siv welded.Raws li cov cuab yeej txav ntawm cov vuam interface, cov khoom yas tau ntws tawm ntawm sab nraum lub cuab tam rau sab nraub qaum, sib sau ua ke theem weld nyob rau hauv kev extrusion ntawm lub cuab tam.
FW yog muaj peev xwm weld tuab cov ntaub ntawv xws li txhuas, thiab titanium nyob rau hauv ib qho kev lag luam thermal, xws li kev tsim hluav taws xob siab, xws li kev tsim khoom lag luam.
[^ 1]: Lub ntsiab lus ntawm FSS los ntawm Scienceerer
Leej twg tsim kev sib txhuam do vuam?
Kev sib txhuam do vuam (FSW) tau tsim los ntawm lub koom haum Vuam (twi) xyoo 1991, feem ntau tsim los ntawm firess hayne omas thiab nws pab neeg.Kev txhim kho ntawm cov thev naus laus zis tau tsav los ntawm kev cog qoob loo, xws li txhuas cov ntaub ntawv, uas tau muaj kev cuam tshuam nrog porosity thiab tawg thaum muaj kev sib tsoo siv cov hau kev. Fw daws cov teeb meem no los ntawm kev siv cov tshuab hluav taws xob siab tig mus rau cov khoom sib txhuam, tso cai rau cov khoom sib txhuam, tso cai rau cov khoom siv-lub xeev weld.
Keeb Kwm Kev Loj Hlob
- Thaum Ntxov 1990: FSS Technology tau tsim thiab xub pib thov rau txhuas alloy vuam, tshwj xeeb tshaj yog txais kev siv thoob plaws hauv Aerospace kev lag luam.
- 1997: NASA saws fars technology hauv kev tsim khoom ntawm cov chaw tsim khoom ntawm cov chaw tsim hluav taws xob sab nraud, ua rau nws cov peev txheej rau cov ntawv thov tseem ceeb.
- 2000s: FSSS Technology nthuav mus rau hauv kev lag luam tsheb, tshwj xeeb hauv kev siv lub teeb sib txuas, ua rau muaj kev nce qib qub hauv lub teb.
- 2010s: Nrog kev txhim kho hauv kev tsim qauv, txheej txheem tswj, thiab automation technology, fw pom cov khoom siv dav dav, tshwj xeeb hauv cov neeg ntim ntau lawm.
Yuav ua li cas kev txhuam cev do vuam ua haujlwm thiab cov txheej txheem?
Kev sib txhuam ua kom muaj kev ua haujlwm vuam[1]Los ntawm kev siv cov cua sov uas tsim los ntawm kev sib txhuam ntawm cov cuab yeej tig thiab cov khoom siv tau welded. Cov txheej txheem cuam tshuam ntau yam tseem ceeb:
Lub cuab yeej vuam yog nyob ntawm qhov tseem ceeb ntawm FSW txheej txheem. Nws muaj ob qho tseem ceeb: ib tus pin tig rov qab thiab lub xub pwg.
Tus pin feem ntau yog cylindrical lossis xov, thiab nws yog ib feem ntawm cov cuab yeej uas tau tso ncaj qha rau cov khoom siv kom welded. Lub xub pwg, uas nyob ib puag ncig tus PIN, pab tsim kom muaj cua sov ntxiv los ntawm kev sib txhuam thaum nws tuaj rau hauv kev sib cuag nrog cov khoom saum npoo.
-
-Puav: Tus PIN yog lub luag haujlwm tsim lub luag haujlwm tsim lub tshuab siv tes tsim nyog yuav tsum tau sib xyaw cov khoom ntawm kev sib koom ua ke. Nws kuj ua rau muaj peev xwm ua kom muaj kev kub siab ntawm cov khoom sib tshuam ntawm cov ntaub ntawv tau koom nrog. Tus PIN tus qauv tuaj yeem sib txawv raws li cov ntawv thov vuam. Muaj qee kis, nws tuaj yeem yog xov rau nce cov kev sib txhuam kub thiab cov khoom txaus.
-
-Qhov: Lub xub pwg ua lub luag haujlwm tseem ceeb hauv kev nthuav dav cov cua sov thiab muab kev sib txhuam ntxiv. Raws li cov cuab yeej tig, lub xub pwg rubs tiv thaiv cov npoo ntawm workpiece, kom ntseeg tau tias cov khoom ntawm kev sib koom tes yog khaws cia muag txaus rau kev sib xyaw kom tsis muaj kev sib xyaw.
Cov cuab yeej no yog ua los ntawm cov ntaub ntawv ruaj khov, muaj zog siv, xws li cov cuab yeej steel lossis tungsten, kom tiv thaiv kev sib txhuam thiab cua sov tsim thaum cov txheej txheem.
2. KUB KOM
Tus yuam sij rau FSW yog cov cua sov tsim los ntawm kev sib txhuam ntawm lub pin thiab workpiece cov khoom. Raws li cov cuab yeej tig ntawm kev kub ceev, cov cua kub sib txhuam yog tsim ntawm lub interface ntawm cov cuab yeej thiab cov khoom siv.
Qhov kub no yog nquag nyob rau hauv ib puag ncig ntawm cov cuab yeej, nce qhov kub ntawm cov khoom mus rau qhov uas nws tau muab cov yas tab sis tsis yaj.
Qhov no yog qhov tseem ceeb ntawm kev sib txawv los ntawm kev siv vuam. Thaum feem ntau vuam cov tswv yim cia siab rau melting cov ntaub ntawv los koom nrog lawv, FSW kev ua haujlwm hauv cov txheej txheem-lub xeev. Cov ntaub ntawv tsis ncav cuag lawv cov kev pheej hmoo, uas txo qis kev pheej hmoo ntawm qhov tsis xws luag, tawg, thiab shrinkage uas nquag muaj nyob hauv cov khoom siv tshuaj lom neeg ib txwm muaj.
Hauv feem ntau FSW daim ntawv thov, cov khoom siv yog qhov kub ntawm 60% thiab 90% ntawm nws lub taw tes melting, nyob ntawm cov khoom siv welded. Qhov no ua kom ntseeg tau tias cov khoom seem khoom tab sis dhau los ua cov nyom txaus kom ntws thiab khi.
3. Khoom ntws
Thaum cov khoom siv mus txog qhov xav tau cov yees duab, cov cuab yeej tig tau txav mus rau tom ntej ntawm Weld Sib Tham. Raws li cov cuab yeej tseem ceeb, cov khoom muag muag muag yog thawb tawm sab xub ntiag ntawm tus pin mus rau tom qab, tsim cov khoom ntws uas ua ke. Qhov kev txav ntawm cov khoom yog qhov tseem ceeb rau cov txheej txheem vuam vim tias nws pab "do" cov haujlwm ua ke ntawm qib molecular.
-
Pem hauv ntej rau nram qab ntws: Cov khoom nyob ze ntawm cov cuab yeej tus lej yog softened los ntawm kev sib txhuam thiab nplawm li lub cuab yeej txav. Qhov no tso cai rau cov khoom kom ntws mus rau sab nraum qab ntawm lub cuab tam. Kev txav mus txuas ntxiv ua kom ua kom muaj zog uas sib koom ua ke tau sib xyaw ua ke thiab sib xyaw ua ke, tsim cov khaub ncaws Weld.
-
Solidification: Raws li cov cuab yeej txuas ntxiv txav, cov khoom tom qab tus lej PIN pib txias thiab ua rau muaj kev sib tw, ua kom muaj kev sib raug zoo. Thaj kev kub-cuam tshuam cheeb tsam (Hz) ntawm ob sab ntawm Weld sib koom ua ke, uas ua rau muaj kev sib koom tes hauv micrd uas cuam tshuam nrog kev siv vuam vuam.
-
[^ 1]: Kawm txog cov txheej txheem kev ua haujlwm hauv kev sib txhuam ua kom muaj vuam, uas tau teeb tsa nws sib cais los ntawm kev siv vuam.
Koj txoj kev ntseeg siab tsim nyog tso cua sov sourier hauv Suav teb
Yog tias koj xav nrog peb cov kws tshaj lij kev ua haujlwm txog koj qhov kev ua haujlwm thermal ntawm koj, peb yuav tau rov qab rau koj hauv ib hnub npav.
Qhov zoo thiab qhov tsis zoo ntawm kev sib txhuam do vuam
Qhov zoo ntawm FW
Kev sib txhuam do vuam muaj cov txiaj ntsig ntau, tshwj xeeb yog thaum vuam cov ntaub ntawv zoo li txhuas, titanium, thiab qee cov hlau. Ntawm no yog qee qhov txiaj ntsig tseem ceeb:
| Qhov Zoo | Tsis zoo |
| Tsawg Tsawg Cua Sov Thaj Chaw | Rigid Ua Haujlwm Txhab |
| Tsawg residual kev ntxhov siab | KeyHole Matation |
| Tsis muaj cov muab cov khoom siv xav tau | Xaiv cov khoom muaj kev xaiv |
| Tsis muaj kev tiv thaiv roj yuav tsum tau | Kev Siv Khoom Siv Slooler qeeb |
| Tuaj yeem muab cov hlau sib cais | Lub cuab tam ceev |
- Tsawg kawg-cuam tshuam cheeb tsam (hz)[1]: Cov txheej txheem nthuav dav cov cua kub piv rau cov vuam sib xyaw ua ke, lub ntsiab txhais ntawm microstructure hauv thaj chaw kub-cuam tshuam.
- Tsawg residual kev ntxhov siab[2]: Vim tias cov khoom siv tsis yog txias thiab txias txias thiab muaj kev ntxhov siab tsawg, txo qis txoj kev sib txawv lossis tawg.
- Tsis muaj cov muab cov khoom siv yuav tsum tau ua: Tsis muaj ib txwm siv vuam, FSW tsis tas yuav tsum muaj cov xaim xaim, txo cov nqi khoom thiab pov tseg.
- Tsis txhob tiv thaiv roj: FSW tsis xav tau sab nraud tiv thaiv roj, ntxiv cov nqi qis dua thiab ua kom yooj yim cov txheej txheem vuam.
- Welds Dissimilar Materials: FSW yuav siv tau rau Weld cov ntaub ntawv tsis sib xws, uas feem ntau muaj kev sib tw hauv cov txheej txheem vuas vuam. Nws yog tau txais txiaj ntsig tshwj xeeb rau kev koom nrog cov ntaub ntawv uas nquag tawg thaum tawg thaum muaj kev sib tsoo.
Qhov tsis zoo ntawm FSS
Thaum FSW muaj ntau qhov zoo, tseem muaj ntau cov kev sib tw uas yuav tsum tau txiav txim siab thaum siv cov txheej txheem no:
- Rigidity ntawm cov khoom siv: Cov workpieces yuav tsum muaj kev ruaj ntseg nyob rau hauv qhov chaw thaum cov txheej txheem los tiv thaiv ib qho kev txav uas yuav cuam tshuam weld zoo.
- KeyHole Matation: Thaum kawg ntawm Weld, ib qho tseem ceeb yog tsim, uas yuav xav tau vuam ntxiv lossis sib khi.
- Xaiv cov khoom muaj kev xaiv: Cov cuab yeej tsim qauv thiab cov txheej txheem txheej txheem feem ntau yog txwv rau cov alloys tshwj xeeb. FSW yuav tsis zoo rau qee cov ntaub ntawv tsis muaj kev tshawb fawb ntxiv lossis kev hloov kho thiab cov tswv yim.
- Weld Ceev: Hauv qee kis, lub vuam ceev yog qeeb qeeb piv rau lwm txoj kev vuam, tshwj xeeb tshaj yog thaum vuam tuab lossis thaj chaw loj hauv ib qho dhau.
- Tuam Kev Hnav: Lub cuab yeej vuam tuaj yeem hnav tau sai sai vim yog kev sib txhuam tau, ua rau cov nqi kho kom zoo dua.
[^ 1]: Nkag siab tias yog qhov tsawg kawg nkaus kub-cuam tshuam li cas hauv FSW
[^ 2]: Nkag siab tias dab tsi yog qhov tseem ceeb ntxhov siab
Dab tsi yog qhov sib txawv ntawm kev sib txhuam thiab kev sib txhuam sib txhuam vuam?
Kev sib txhuam vuam thiab kev sib txhuam do vuam yog ob qho txheej txheem-lub xeev cov txheej txheem uas siv cov cua sov los ntawm kev sib txhuam. Txawm li cas los xij, muaj qhov sib txawv tseem ceeb ntawm ob txoj kev:
Ntsug Vuam (FW)
Hauv kev sib txhuam vuam, ob txoj haujlwm sib tw tau tig tawm tsam ib leeg nyob hauv siab txog thaum lawv tsim kom muaj cua sov txaus los koom. Cov khoom siv tau ua kom sov rau lub xeev molten, ua rau nws yuav fuse. Cov txheej txheem feem ntau siv rau koom nrog cylindrical seem.
Kev sib txhuam do vuam (FSW)
FSS siv cov cuab yeej tig los do cov khoom uas tsis muaj rau nws yaj. Nws yog siv los koom nrog cov ntaub ntawv nyob hauv lub xeev ruaj khov, ua rau kom muaj cov qauv zoo dua thiab cov qauv grain. FW yog ntau ntau ntau yam thiab haum rau koom nrog cov neeg ua haujlwm loj lossis ntau dua ua workpieces.
| Tus yam ntxwv | HLUB VUAM | Kev sib txhuam do vuam |
| KUB KOM | Hlau melts vim muaj kev sib txhuam siab kub | Hlau yog softened, tab sis tsis tau melted |
| Vuam txheej txheem | Hu rau kev sib chwv ntawm cov haujlwm | Cov cuab yeej ntxig rau hauv workpiece rau nplawm |
| Cov Ntawv Thov | Zoo tshaj plaws rau cylindrical seem | Haum rau cov qauv thiab cov qauv loj |
| Cov Khoom Siv Khoom | Mas steel thiab txhuas | Ntau yam ntawm alloys, suav nrog txhuas, tooj, titanium |
| Hov ceev | Kev Siv Vuam Ceev | Slower Vuam Vuam Ceev Rau Cov Khoom Siv Tuab |
Tag
Kev sib txhuam do vuam yog kev tshaj lij thiab siv tau welds zoo, ua rau nws muaj kev lag luam zoo xws li aerospace, tsheb, thiab nkoj. Txawm hais tias nws muaj qee qhov kev txwv, nws qhov zoo, suav nrog cov khoom muaj kev ntxhov siab tsawg thiab muaj peev xwm weld cov khoom tawv, ua kom muaj kev daws teeb meem. Raws li thev naus laus zis hloov zuj zus, FSW cov ntawv thov yuav tsum loj hlob, ua tus txheej txheem tseem ceeb hauv kev tsim khoom tom ntej.