Cov khoom siv hlau ntawm cov khoom siv hlau ntawm cov ntaub ntawv hais txog qhov kev muaj peev xwm ntawm cov ntaub ntawv kom hloov mus rau ntau hom kev thim nyiaj. Xws li yooj yim ua, yooj yim kom tau zoo thiab high-precision hlau stamping, kev ua kom muaj zog ntau dua (txoj kev thwj cim, qhov kawg ntawm kev rhuav tshem ntawm lub cev thiab lub siab tshaj plaws deformation), tsawg pwm noj, yooj yim los tsim pov tseg thiab on. Sheet hlau stamping kev ua haujlwm yog ib lub tswv yim qhia ntawv. Qhov zoo ntawm lub thawv hlau yuav tsum zoo li tus thiab zoo li tus. Qhov zoo yog nyob ntawm kev sib sau ua ke (tawg tsis ua haujlwm), moldability, thiab cov duab khov kho.
Kev tsim txoj kev txwv yog hais txog qhov kev rhuav tshem ntau tshaj plaws uas yuav ua tiav thaum lub sijhawm cov txheej txheem ntawm daim ntawv sau, uas cov khoom tsis ua rupture. Nws tuaj yeem xav tias qhov kev txwv tsis pub tshaj tawm yog qhov sib zog ua haujlwm ntawm cov khoom thaum lub sijhawm ua cov ntawv xovxwm. Qhov zoo dua qhov kev sib tw ua qhov kev ua tau zoo ntawm cov khoom siv ntawm cov hlau stamping cov chaw tsim hluav taws xob, qhov zoo dua qhov tawg tsis kam ntawm cov khoom thiab qhov siab dua tus qauv ntawm kev txwv.
Cov khoom ntawm cov hlau nplaum (stamping) cov khoom siv yog lub peev xwm ntawm daim ntawv cov ntaub ntawv kom tau cov duab puab ntawm lub sijhawm thwj cim. Txoj hauv dej khov yog qhov peev xwm ntawm ib feem los khaws nws cov duab nyob rau hauv ib qho pwm tom qab nws tau raug lawm. Muaj ntau ntau yam uas cuam tshuam rau txoj kev moldability. Cov teeb meem geometrical xws li pob zeb, hlawv, sib tawg, thiab ua rau hauv txoj kev ua tus txheej txheem yuav txo qhov kev txiav siab. Qhov tseem ceeb tshaj plaws uas cuam tshuam rau qhov kev khov no yog qhov pib. Tom qab ntawm qhov chaw demoulded, lawv feem ntau muaj cov qauv zoo uas tsis yog vim ntau qhov kev rov qab.
Cov thwj cim uas tsim los ntawm cov khoom ntiag tug khoom lag luam tsim nyog yuav tsum ua kom zoo rau kev siv cov khoom hlau, txo cov ntau yam thiab cov khoom ntawm cov ntaub ntawv, thiab cov khoom siv tsawg. Tshaj li tau, cov ntaub ntawv pheej yig yog siv los ua qoob-dawb thiab tsawg li tsawg tau. Tus qauv tsim ntawm cov khoom siv hlau tshuab yuav tsum yooj yim rau hauv cov qauv thiab tsim nyog hauv tus qauv kom yooj yim simplification ntawm cov txheej txheem puab thiab simplify cov xov tooj ntawm cov txheej txheem, uas yog, kom tiav cov kev ua tiav tag nrho nrog tsawg tshaj plaws thiab qhov yooj yim tshaj plaws txoj kev thev naus laus zis, txo kev siv lwm txoj kev ua, thiab los pab txhawb kev thev ua Txoj haujlwm khiav hauj lwm ntawm cov neeg ua haujlwm thiab cov cuab yeej siv los ua kom muaj zog ua hauj lwm.