Kev tswj hwm tus nqi muaj ntau yam. Cov nqi ntawm cov khoom siv yog ib feem tseem ceeb; xaiv tus nqi- cov ntawv hlau zoo tuaj yeem txo cov nqi yam tsis muaj kev cuam tshuam zoo. Cov nqi pwm kuj tseem ceeb; Txawm hais tias thawj zaug peev yuav siab, txuas ntxiv lub neej ntawm pwm los ntawm kev tsim kom zoo tuaj yeem txo cov nqi tsev. Optimizing cov txheej txheem ntau lawm, txo cov pov tseg, thiab txhim kho kev siv cov khoom siv kuj yog txoj hauv kev zoo rau kev tswj tus nqi. Piv txwv li, txo cov khoom seem los ntawm kev tsim kom zoo tuaj yeem txo cov khoom pov tseg.
Kev tsim cov ntawv hlau stamping qhov chaw yuav tsum xav txog ntau yam. Ua ntej, xaiv cov khoom tseem ceeb heev; Cov ntawv hlau sib txawv muaj cov khoom siv sib txawv, xws li lub zog, hardness, thiab ductility, uas cuam tshuam ncaj qha rau kev ua tau zoo ntawm cov txheej txheem stamping thiab qhov zoo ntawm qhov kawg. Qhov thib ob, lub geometry ntawm ib feem yog qhov tseem ceeb; Cov duab nyuaj yuav xav tau ntau yam txheej txheem lossis pwm tshwj xeeb, nce nqi thiab nyuaj. Tus tsim yuav tsum xav txog tej yam teeb meem thaum lub sij hawm stamping, xws li springback thiab wrinkling, thiab daws cov teeb meem no los ntawm kev tsim tsim nyog.