Forging vs Casting
Forging thiab casting yog cov txheej txheem tsim khoom uas muaj hlau. Nws yog ib qho nyuaj los ua cov khoom siv lossis cov khoom siv nrog hlau, vim tias lawv nyuaj heev thiab nyuaj rau kev ua haujlwm nrog lawv. Txawm li cas los xij, ob txoj hauv kev, casting thiab forging, yog ib qho yooj yim thiab qub txoj kev, uas yog siv rau shaping hlau thiab ua cov duab tshwj xeeb. Ob leeg yog cov txheej txheem qub heev uas paub txog kev ua hlau.
Kev
Forging siv compressive zog thaum shaping hlau. Qhov no yog ib txoj kev qub heev, thiab kev lig kev cai nws tau ua los ntawm smith. Rauj thiab anvil tau siv rau qhov txheej txheem no. Forging yog categorized ua peb li txias, sov los yog kub, raws li qhov kub ntawm qhov uas nws tau ua. Nws yog hu ua kub forging thaum hlau kub siab tshaj cov khoom siv recrystallization kub. Yog tias qhov ntsuas kub qis dua, tab sis siab dua 30% ntawm cov khoom siv recrystallization kub nws yog hu ua sov forging. Thaum nws qis dua 30% ntawm qhov kub ntawm recrystallization nws yog hu ua txias forging.
Txhua cov txheej txheem forging sib txawv tuaj yeem muab faib ua peb chav kawm. Nyob rau hauv txoj kev kos tawm qhov ntev ntawm cov hlau nce whereas hla ntu txo. Nyob rau hauv txoj kev chim siab, vice versa tshwm sim. Lwm txoj kev yog "squeezed hauv kaw compression tuag" txoj kev.
Forging tsim cov khoom muaj zog dua li lwm txoj hauv kev. Ib qho tsis zoo ntawm forging yog qhov forged qhov yuav tsum tau ua ntxiv kom ua tiav cov khoom tiav. Tshwj xeeb tshaj yog nyob rau hauv txias forging nws yog ib qho nyuaj rau ua cov theem nrab hloov. Lwm qhov tsis zoo yog tias forging yuav tsum siv nyiaj ntau rau cov tshuab, cuab yeej, chaw, thiab lwm yam.
Kev
Nyob hauv casting, pwm hauv cov duab xav tau yog siv. Tom qab ntawd cov khoom ua kua yog poured rau hauv lub hollow kab noj hniav ntawm pwm thiab tso cai rau solidify. Thaum nws yog solidified, nws raug tshem tawm ntawm pwm, thiab ces nws yuav muaj qhov xav tau zoo. Cov ntaub ntawv pov thawj yuav tsum muaj peev xwm ua kom khov tom qab txias thiab thaum cua sov nws yuav tsum yaj.
Hlau yog dav siv rau casting. Tshwj xeeb tshaj yog, tooj liab tau siv rau casting rau lub sijhawm ntev. Casting yog txheej txheem qub heev, thiab nws muaj keeb kwm txog 6000 xyoo. Lwm yam tshaj li hlau, pob zeb, plaster ntawm paris thiab yas resins yog siv rau casting. Qee zaum cov ntaub ntawv sib xyaw nrog cov tshuaj ua kom nws teeb lossis ua kom cov txheej txheem casting yooj yim.
Casting yog siv los ua sculptures, ciav, thiab lwm yam. Casting yog yooj yim heev, thiab nws cov khoom yog huv si. Nws feem ntau yog siv los ua cov duab uas nyuaj heev; uas yog, cov duab no nyuaj rau ua yam tsis muaj pwm, lossis tej zaum yuav kim heev yog tias nws ua lwm yam.
Forging vs Casting
