Cov nyhuv pob zeb tawg ntawm pob zeb diamond laum khoom yog ua tiav los ntawm pob zeb diamond hais. Txhawm rau kom nkag siab cov txiaj ntsig ntawm pob zeb tawg ntawm cov khoom siv tho, peb yuav tsum nkag siab txog lub pob zeb tawg ntawm ib pob zeb diamond. Nyob rau hauv ib qho nyuaj formations, ib pob zeb diamonds muab pob zeb nyob rau hauv tsis tshua muaj kev nyuaj siab (txog 4200-5700MPa, thiab ib co ntaub ntawv ntseeg hais tias nws muaj peev xwm ncav cuag 6300MPa) nyob rau hauv qhov kev txiav txim ntawm drilling siab, ua rau lub pob zeb mus rau ib tug lithology hloov los ntawm brittle rau yas. . Ib pob zeb diamonds noj rau hauv kev tsim thiab txiav thiab tawg pob zeb nyob rau hauv qhov kev txiav txim ntawm torque. Qhov tob txiav yog qhov sib npaug ntawm qhov tob tob ntawm cov pob zeb diamond hais. Cov txheej txheem no zoo li "ploj av", yog li nws yog hu ua plow-like cutting effect ntawm pob zeb diamond laum khoom.
Hauv qee cov pob zeb nkig (xws li sandstone, limestone, thiab lwm yam), lub ntim ntawm pob zeb tawg los ntawm pob zeb diamond hais rau ntawm lub laum me ntsis nyob rau hauv ib txhij ua hauj lwm ntawm drilling siab torque yog ntau loj dua lub ntim ntawm pob zeb diamond hais noj thiab tig. Thaum lub siab tsis siab, tsuas yog cov grooves me me tuaj yeem tsim raws cov kev taw qhia ntawm pob zeb diamond txav. Kev nce siab yuav ua rau cov pob zeb hauv qhov sib sib zog nqus ntawm qhov zawj me me thiab ntawm ob sab kom tawg, tshaj qhov hla ntawm qhov loj ntawm cov pob zeb diamond hais.
Lub pob zeb tawg ntawm pob zeb diamond laum cov khoom tsis yog tsuas yog cuam tshuam nrog lub pob zeb thiab lwm yam khoom uas cuam tshuam rau cov pob zeb (xws li siab, kub, tsim cov kua dej, thiab lwm yam), tab sis kuj yog ib qho tseem ceeb ntawm kev cuam tshuam. Zoo li cov menyuam laum khoom, nws muaj peb txoj hauv kev tawg pob zeb: nto tawg, qaug zog tawg, thiab ntim tawg. Tsuas yog thaum cov pob zeb diamond hais muaj qhov tshwj xeeb txaus los noj rau hauv cov pob zeb tsim thiab ua rau lub pob zeb tawg hauv ntim, tuaj yeem ua tiav cov pob zeb zoo tagnrho.
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