Qhov cuav rai, nyob hauv qab zib ntawm khw kev cua sov thiab kev siv khw, yog qhov chais siv los cuav, kho lossis tsim duab nrog rau cov khw txugs, films lossis thaum kawg yog cov duab tsha tshaj uas tsim los ntawm kev tso khw los ntawm qhov chaw siv tshuab uas muaj nuj nqi tshaj plaws uas hu ua "die". Qhov kev tsim no yog kev sau qhov chaw siv tshuab, uas muaj duab nrawm zoo li duab ntawv xov tooj, mus rau hauv khw los ntawm kev siv zog hydraulic lossis zog tshuab. Qhov no txawv ntawm kev sau lossis kev kuam tshuab, thiab lub hom kev tsim no yooj yim heev rau kev tsim tau ntau yam khoom tib yam. Muaj ntau yam kev cuav rai, xws li flatbed, qhov chaw khw raug tso rau hauv qhov chaw npoo phem thiab qhov chaw siv tshuab raug sau nqes, thiab rotary, qhov chaw siv tshuab twg muaj duab roj teeb thiab roj teeb piv rau anvil roll, uas yog ib qho zoo tshaj rau kev tsim cov khw muaj zog tshaj uas tuaj yeem rov qab los. Cov chaw siv tshuab tuaj yeem tsim los ntawm steel tshwj xeeb rau kev siv ntev hauv kev tsim ntau, lossis los ntawm cov khw tshwj xeeb tshaj uas muaj zog nrawm dua rau kev tsim me me. Die cutting muaj leej hnub ntau rau kev tsim ntau, kev txaus siab thiab kev tsim tau cov duab tseem ceeb nrog ib zaug sau. Tab sis, qhov kev siv no feem ntau tsis tuaj yeem siv rau cov khw tsha tshaj, xws li PA66 GF30 uas muaj fiberglass, vim tias qhov nrawm yuav tshwm sim kev siv tshuab sai, thiab tsis muaj kev pheej hmong. Hauv kev tsim khoom rau thermal break systems, die cutting tuaj yeem siv los tsim gaskets, seals lossis protective films los ntawm khw xws li EPDM, silicone lossis PVC. Cov nuj nqi tseem ceeb yog kev tsim ntau heev thiab kev lag luam tsawg (loss of material), uas yog ib qho kev xaiv zoo rau kev tsim ntau hauv kev tsim khoom kom tiav.