Kev ua cov kav dej Bent: Cov txheej txheem thiab cov kev sib tw
Nyob rau hauv peb lub neej txhua hnub, peb ntsib ntau yam khoom ntawm cov khoom siv yeeb nkab. Kev siv thev naus laus zis rau cov kav dej khoov tau nce zuj zus, muab kev yooj yim tab sis qee zaum ua rau muaj kev sib tw zoo li qhov tshwm sim ntawm microcracks thaum lub sijhawm tsim khoom, ua rau muaj qhov tsis xws luag uas yuav cuam tshuam rau kev muag khoom.
Hauv kev ua cov kav dej khoov, nws yog ib qho tseem ceeb uas yuav tsum tau siv cov txheej txheem kev tsim khoom zoo tshaj plaws rau kev tshuaj xyuas thiab kev kho mob thiab siv cov kev ntsuas tsim nyog rau kev tswj xyuas thiab tswj. Piv txwv li, thaum lub sij hawm cov khoom tuav, thaum qhov kub thiab txias tshaj ib tug ntau yam ntawm cov khoom, cov khoom nto yuav deform mus rau ib tug tej yam, uas yuav ua rau ntau nplua nkig. Yog li, nws yog ib qho tsim nyog los tswj qhov kub thiab txias thaum ua haujlwm.
Qhov tshwm sim ntawm cov teeb meem no tuaj yeem raug ntaus nqi los ntawm kev tswj hwm qhov kub thiab txias tsis txaus thiab cov khoom siv tsis zoo. Qhov deformation yog tshwm sim los ntawm kev ua haujlwm siab, uas tuaj yeem ua rau cov khoom puas tsuaj thaum lub sijhawm khoov. Yog li, yuav ua li cas cov teeb meem cuam tshuam txog kev tawg? Qhov tseeb, cov teeb meem no tsim nyog rau qee yam xwm txheej.
Kev txheeb xyuas qhov xwm txheej ntawm kev lag luam khoov cov yeeb nkab khoov, peb tuaj yeem txiav txim siab tias qhov ntev ntawm cov kab nrib pleb hauv cov kav dej khoov tuaj yeem raug txo los ntawm kev ua kom lawv khiav mus rau qhov chaw ciam teb. Nyob rau hauv lwm yam lus, perpendicular mus rau lub longitudinal axis ntawm lub stretched yeeb nkab, xaiv cov kev kho cua sov sib txawv yuav cuam tshuam rau txoj kev loj hlob ntawm microcracks ntawm cov khoom tus yam ntxwv nto. Lub zog tensile ntawm cov khoom tseem tsis cuam tshuam los ntawm qhov kub thiab txias, thiab qhov tseem ceeb no tsis cuam tshuam los ntawm ib puag ncig kev sib raug zoo.
Tsis tas li ntawd, kev tswj cov kev taw qhia khoov yog qhov tseem ceeb hauv kev khoov cov kav dej. Qhov tseeb, khoov cov kav dej nrog cov kaum sib txawv ntawm cov radii sib txawv yuav ua rau muaj ntau yam khoom. Cov khoom zoo li no tau dhau los ua cov khoom tseem ceeb ntawm cov kav dej. Yog hais tias cov khoom ntawm phab ntsa thickness txawv, thiab cov kev hloov nyob rau hauv txhua yam khoom vim yog dabtsi yog khoov thaum lub sij hawm ua rau cov khoom zoo, ces cov technical nam yog heev tseem ceeb.
dabtsi yog khoov yog txoj kev uas feem ntau siv rau kev khoov kav, uas yuav categorized rau hauv ib txwm phau ntawv dabtsi yog khoov thiab tshuab dabtsi yog khoov, nyob ntawm seb hom dabtsi yog khoov cov cuab yeej siv. Kev tuav dabtsi yog khoov tsis xav tau cov cuab yeej tshwj xeeb thiab ncaj nraim, nrog cov nqi tsim khoom tsawg, kev hloov kho yooj yim, tab sis nws los nrog kev siv zog ntau dua, kev ua haujlwm qis dua, thiab feem ntau yog tsim rau cov khoom me me. Raws li nws cov axis dabtsi yog khoov thiab seb nws puas tuaj yeem muab faib ua cov tub ntxhais thiab lub luj tshib tsis yog, phau ntawv khoov tuaj yeem muab faib ua cov tub ntxhais thiab tsis yog lub luj tshib.
Muaj ntau txoj hauv kev los khoov cov kav dej. Raws li txoj kev khoov txoj kev, nws tuaj yeem muab faib ua dov dabtsi yog khoov, compression dabtsi yog khoov, thawb dabtsi yog khoov, thiab coiling dabtsi yog khoov. Nyob ntawm seb cov pwm siv thaum dabtsi yog khoov, nws tuaj yeem muab faib ua pwm dabtsi yog khoov lossis tsis yog pwm dabtsi yog khoov. Raws li seb puas muaj mandrel thaum khoov, nws tuaj yeem muab faib ua mandrel dabtsi yog khoov lossis tsis-mandrel dabtsi yog khoov. Raws li seb cov cua sov puas koom nrog hauv txoj kev khoov, nws tuaj yeem raug cais raws li kev khoov txias lossis kub dabtsi yog khoov. Nyob rau hauv xyoo tas los no, muaj txoj hauv kev tshiab xws li xoom-radius bending, high-frequency induction bending, dabtsi yog khoov thiab kub siab laser txoj kev.
