Lub vuam txheej txheem ntawm bandsaw cov nplais cuam tshuam nrog ob kauj ruam tseem ceeb: thawj zaug yog cov coiled bandsaw sawb sab yog txiav rau qee qhov ntev thiab nws xaus welded ua ke. Tus txheej txheem no feem ntau ua tau siv siv Resistance Flash Vuam, txawm hais tias qee qhov chaw tsim khoom siv tig vuam. Lub kauj ruam thib ob cuam tshuam vuam qib siab-ceev steel (hss) hlau rau lub caij nplooj ntoo hlav steel sawb. Nyob rau hnub thaum ntxov, Electron nqaj vuam (EBW) tau siv dav. Txawm li cas los xij, txij li lub xyoo pua 21st, Laser Beam Vuam (LBW) tau ua tiav zoo nyob rau hauv ntau yam kev lag luam, suav nrog cov bandsaw system.
Piv rau EBW, LBW muaj cov txiaj ntsig zoo hauv qab no:
High Ntau Lawm Ua Haujlwm: EBW yuav tsum nqus tsev, thiab txhua zaus kev tsim khoom yog nres thiab rov qab siv dua, cov txheej txheem uas yuav siv sijhawm li 1 teev thiab cuam tshuam ntau dua. Hauv kev sib piv, LBW siv ar (lossis qee zaum n₂) ua kev tiv thaiv kev tiv thaiv thiab tsis tas yuav nqus tsev. Tom qab ib qho chaw nres tsheb, ntau lawm tuaj yeem rov qab kho dua kev hloov kho yooj yim, txhim kho kev ua tau zoo heev.
Txo kev tu thiab kho cov nqi: Ntawm ib sab tes, LBW cov khoom siv tsis tshua kim dua EBW khoom siv. Ntawm qhov tod tes, Ebw yuav tsum muaj lub tshuab nqus tsev siab, tsim nyog saib xyuas ntau zaus ntawm cov nqus nqus av thiab ua rau cov nqi siab dua. Txij li LBW tsis tas yuav nqus tsev, nws cov nqi kho thiab kho tau qis dua.
Siab vuam zoo: Piv rau EBW, LBW tsim tawm wels ntawm kev sib luag zoo. Nyob rau hauv cov txheej txheem zoo tshaj plaws, cov welds muaj puv thiab hnav ris tsho tag nrho, nrog tsawg dua cov hws thiab cov nplais me. Hloov EBW nrog LBW tsis cuam tshuam dab tsi cuam tshuam ntau rau Weld Zoo.
Muab cov txiaj ntsig zoo, ntau pawg neeg tsim khoom ob qho tib si hauv tsev sib txuas tau muaj maj mam muab coj los hloov LBW los hloov EBW nyob rau xyoo tas los no.
(2) Kev Tshawb Fawb Kev Tshawb Fawb ntawm EBW cov txheej txheem
Txawm hais tias siv EBW lossis LBW, nruj me ntsis kev siv vuam qhov tseeb thiab metallurgical zoo ntawm WELD yog qhov tseem ceeb thaum cov txheej txheem.
Thaum ntxov li xyoo 1990, Hnub Z. li al. taw qhia tias kev sib tw hauv kev sib tw hauv bandsaw me me nyob rau hauv kev tswj kom siab qhov tseeb txawm tias nyob rau ntawm 10 m \/ min. Thawj qhov yuav tsum tau yog tswj hwm Weld morphology. Daim duab 3 Qhia tau Weld Morphologies raug. Daim duab 3A piav txog cov qauv Welphology, qhov twg cov weld tau tag nrho thiab tsis tu ncua, nrog lub ntsej muag ntxaij vab tshaus uas yog qhov nqaim rau hauv qab, thiab ib qho kev txaj muag me ntsis nyob rau sab saum toj. Raws li qhia hauv daim duab 3B, ib qho tshwm sim thaum lub sij hawm vuam yog "misalignment," qhov twg cov npoo ntawm xaim thiab cov sawb tsis sib thooj. Qhov tsis xws luag no tuaj yeem tshwm sim los ntawm kev tsis sib xws hauv lub thickness hauv cov xaim ntawm xaim thiab cov strip lossis kev hloov kho tsis raug ntawm lub vuam fixture. Raws li muaj nyob hauv daim duab 3C, lwm qhov tsis xws luag yog "concality," qhov kev nyuaj siab tshwm sim ntawm ntug ntawm Weld. Qhov kev nyuaj siab no feem ntau tshwm sim ntawm sab ze rau cov sawb tab sis kuj tuaj yeem tshwm sim ntawm sab ze rau cov hlau. Yog tias nws tshwm sim ntawm Sawb sab, nws yuav yog vim muaj kev ua tsis tiav ntug kev txiav ntawm sawb. Qhov tsim ntawm kev sib ntxub kuj tseem tuaj yeem cuam tshuam nrog kev xaiv ntawm vuam tsis muaj.
