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Nrog rau kev siv dav dav ntawm cov hlau tsis yog ferrous, alloys thiab lwm yam ntaub ntawv nrog cov yas zoo thiab toughness, nws nyuaj rau ua kom tau raws li qhov yuav tsum tau ua kom raug rau kev ua cov xov sab hauv ntawm cov ntaub ntawv no nrog cov kais dej ib txwm muaj.
Kev xyaum ua haujlwm ntev tau ua pov thawj tias tsuas yog hloov cov qauv ntawm lub kais txiav (xws li nrhiav qhov geometry zoo tshaj plaws) lossis siv hom khoom siv kais tshiab tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov qhov ntsia hlau zoo, muaj txiaj ntsig zoo thiab pheej yig.
"Kev ua cov khoom siv tsis muaj txheej txheem txias extrusion" yog ib txoj kev ua cov xov sab hauv tshiab, uas yog, ntawm qhov hauv qab ntawm cov khoom ua ntej, lub kais tsis muaj txheej txheem (extrusion kais) yog siv los txias-extrude cov khoom ua haujlwm los tsim cov yas deformation los ua cov xov sab hauv.
Vim tias kev ua cov txheej txheem tsis muaj chip ntawm kev rho tawm txias tuaj yeem ua tiav cov txheej txheem xov sab hauv uas tsis tuaj yeem ua tiav los ntawm kev txiav cov kais dej ib txwm muaj, yog li daim ntawv thov ntawm cov txheej txheem no tau dhau los ua ntau dua thiab ntau dua, thiab kev sib tsoo cov txheej txheem ntawm cov kais dej extrusion kuj tseem muaj nqis ntau dua los ntawm tib neeg.
Lub conical extrusion cone yog qhov feem ntau siv chipless tap extrusion cone, uas muaj qhov zoo ntawm lub teeb extrusion, me me torque, thiab zoo roughness ntawm cov xov ua tiav. Vim tias nws lub cheeb sab nraud thiab nruab nrab txoj kab uas hla ob leeg muaj tapers, qhov sib tsoo ntawm lub extruded cone no nyuaj dua li ntawm lub cylindrical extruded cone: thaum lub sijhawm sib tsoo, lub kaum sab xis ntawm lub extruded cone a ntawm nws txoj kab uas hla nruab nrab yog pom los ntawm taper, thiab lub phaj tuag yog Lub rooj ua haujlwm txav thiab tsav lub log sib tsoo kom txav radially kom ua tiav qhov sib tsoo ntawm lub chipless tap rau hauv lub kaum sab xis taper.
Lub sijhawm tshaj tawm: Lub Ib Hlis-09-2023