Ib qho tsis zoo ntawm qhov txias dov yog tias nws muaj qee qhov kev txwv thaum nws los txog rau cov khoom siv uas tuaj yeem siv rau hauv cov txheej txheem. Piv txwv li, cov ntaub ntawv xws li txhuas lossis tooj liab yuav tsum tau muab tshem tawm ua ntej ua haujlwm kom tsis txhob muaj cov kab nrib pleb lossis kev ntxhov siab vim yog cov kab mob sab hauv tsim thaum lub sij hawm deformation. Lwm qhov kev poob qis yog qhov muaj feem cuam tshuam rau cov cuab yeej hnav, uas txhais tau tias lawv yuav tsum tau hloov ntau zaus kom tswj tau qhov zoo thiab raug. Tsis tas li ntawd, muaj tsawg txoj kev xaiv muaj nyob rau thaum tswj kev kam rau siab piv rau kub dov, raws li kev txo cov khoom thickness tsim ib tug txwv ntau yam ntawm cov duab thiab qhov ntau thiab tsawg rau txias dov khoom.
Txias dov yog txheej txheem hla hlau los ntawm yob ntawm qhov kub thiab txias hauv qab nws qhov kub ntawm recrystallization. Qhov no ua rau kom lub zog tawm los thiab hardness ntawm cov hlau. Qhov no yog ua tiav los ntawm kev qhia qhov tsis xws luag rau hauv cov hlau cov qauv siv lead ua, uas ua rau lub microstructure hardened uas tiv thaiv kom tsis txhob ntog ntxiv. Txij li cov hlau yog nyob rau hauv chav tsev kub, nws ductility yog tsawg tshaj li ntawm cov hlau saum lawv recrystallization kub.
Disadvantages ntawm txias dov:
1. Muaj kev ntxhov siab nyob rau hauv seem, uas cuam tshuam rau kev ua haujlwm ntawm cov hlau.
2. Vim nws qhov torsional tsis kam yog qhov tsis zoo, nws yooj yim rau thim rov qab thaum nws yog compressed los ntawm dabtsi yog khoov.
3. Lub thickness ntawm cov hlau yog nyias, yog li lub peev xwm los tiv thaiv hauv zos concentrated loads tsis zoo.
4. Kev txo qis me me yuav ua rau qhov tsis sib xws ntawm qhov kev ntxhov siab thiab kev ntxhov siab.
5. Yog li ntawd, kev kho annealing tom ntej yog yuav tsum tau txo cov ductility.
6. Cov cuab yeej siv hauv cov txheej txheem no yog qhov loj thiab kim.
