Ob qho tib si dabtsi yog khoov thiab kos duab cia siab rau cov xovxwm thiab cov pwm los tawm dag zog sab nraud ntawm cov khoom siv hlau los tsim cov yas deformation lossis kev sib cais, thiaj li tau txais cov duab xav tau ntawm cov khoom ua haujlwm.
Bending ib feem yog hais txog cov txheej txheem stamping uas khoov cov ntaub ntawv hlau rau hauv ib lub kaum ntse ntse, curvature thiab cov duab. Kev khoov ntawm cov ntaub ntawv hlau yog qhov tseem ceeb ntawm elastic- txheej txheem yas deformation, thiab tom qab unloading, lub workpiece yuav tsim elastic rov qab deformation nyob rau hauv cov kev taw qhia, uas yog hu ua rebound. Lub springback cuam tshuam qhov precision ntawm lub workpiece, uas yog lub hauv paus ntsiab lus uas yuav tsum tau xav txog nyob rau hauv dabtsi yog khoov txheej txheem. Yog li ntawd, thaum tsim cov khoom siv khoov, cov duab yuav tsum ua kom zoo li qhov ua tau, thiab lub vojvoog dabtsi yog khoov yuav tsum tsis txhob tsawg dua li lub vojvoog dabtsi yog khoov los ntawm cov khoom siv.
The curved edge is too short to form, so it is necessary to make the flat part of the curved edge H>2 ua d. Yog tias H yuav tsum tau luv luv, nws yuav tsum tau tawm ntawm qhov tsim nyog kom nce H, thiab txiav tawm cov hlau ntxiv tom qab khoov. Txhawm rau zam qhov deformation thaum khoov qhov chaw nrog qhov.
Cov duab kos yog ib txoj kev ua stamping uas ua rau lub tiaj tiaj tau txais tom qab blanking rau hauv qhov qhib qhov khoob los ntawm kev siv lub tshuab tuag. Hauv stamping ntau lawm, muaj ntau hom tensile qhov chaw. Vim muaj cov yam ntxwv ntawm cov duab geometric sib txawv, txoj hauj lwm ntawm cheeb tsam deformation, cov cuab yeej ntawm deformation, kev faib tawm ntawm deformation thiab lub xeev kev ntxhov siab thiab kev faib tawm txoj cai ntawm txhua feem ntawm qhov khoob muaj qhov sib txawv, txawm tias qhov tseem ceeb sib txawv. Yog li ntawd, cov txheej txheem ntawm kev txiav txim siab cov txheej txheem tsis, tus naj npawb thiab cov txheej txheem ntawm cov txheej txheem, thiab cov txheej txheem thiab cov txheej txheem ntawm pwm tsim yog txawv. Feem ntau, cov qauv tsim ntawm tensile qhov chaw yuav tsum ua raws li cov duab yuav tsum yooj yim thiab symmetrical, thiab yuav tsum tsis txhob loj dhau, kom tus naj npawb ntawm stretches yog tsawg thiab nws yog ib qho yooj yim rau daim ntawv. Lub vojvoog sib npaug ntawm qhov kos duab tsis tau nce ntxiv hauv cov txheej txheem. Txwv tsis pub, nws yuav ua rau kom muaj pes tsawg lub sij hawm kos duab thiab kev ua haujlwm, tab sis kuj nce cov pwm, thiab yooj yim tsim cov khoom pov tseg thiab nce nqi.
