Cov hniav nyiaj hniav kub dov thiab tsim cov cuab yeej siv feem ntau yog siv rau kev nias, shaping, thiab sizing cov khoom siv hlau zoo, ua haujlwm tseem ceeb hauv cov txheej txheem tsim cov hniav nyiaj hniav kub. Feem ntau yog tsim los ntawm ib lub thav duab, lub zog hluav taws xob, lub tshuab ua haujlwm siab, lub rooj ua haujlwm, thiab kev tswj hwm, cov khoom siv no ua haujlwm hauv kev hais kwv txhiaj kom ua tau zoo ntawm cov khoom siv xws li kub, nyiaj, thiab platinum, ua kom muaj kev ruaj khov thiab txhim khu kev qha.
Lub thav duab feem ntau yog tsim los ntawm siab - lub zog hlau, muab kev thauj khoom zoo heev - muaj peev xwm thiab ruaj khov; nws tiv taus lub siab tseem ceeb tsim thaum lub sij hawm nias thaum txo cov khoom vibration thiab deformation. Lub kaw lus siab- lub hauv paus tseem ceeb ntawm lub tshuab- xa cov siab tsis tu ncua los ntawm hydraulic, mechanical, lossis hluav taws xob tsav, tso cai rau cov khoom siv hlau kom nyias nyias los yog zoo li qhov xav tau.
Cov tshuab no feem ntau yog nruab nrog cov txheej txheem hloov kho qhov tseeb uas tso cai rau cov neeg ua haujlwm hloov cov qib siab, yob qhov khoob, lossis tsim cov tsis raws li cov khoom tuab thiab cov txheej txheem tshwj xeeb. Qee cov qauv zoo tshaj suav nrog cov kev tswj hwm digital los ua kom muaj qhov ntsuas qhov tseeb, yog li txhim kho qhov raug thiab ua haujlwm sib xws kom tau raws li qhov xav tau ntawm cov khoom siv tes ua khoom siv nyiaj txiag nyuaj.