Thaum Siv: Thaum koj xav txwv qhov waviness lossis variation nyob rau hauv ib qho chaw uas tsis tas yuav zawm qhov ntev ntev ntawmhais saum npoo. Feem ntau, flatness yog siv los muab lub ntsej muag ib qho kev hnav lossis rau kev sib khi kom zoo nrog ib qho kev sib tw.
Thaum thov kev ua siab ntev ntev datum referencing yog?
Kev zam kev ua siab ntev hais txog ob lub dav hlau sib luag (sib npaug rau saum npoo uas nws tau hu tawm) uas txhais ib cheeb tsam uas tag nrho cov lus siv saum npoo yuav tsum dag. Flatness kam rau ua yog ib txwm tsawg dua qhov ntev ntawm qhov kam rau ua nrog nws.
Dab tsi yog qhov kev sib haum xeeb zoo?
Kev tswj kev tiaj tus yog siv rau saum npoo. Peb paub tias qhov flatness siv rau saum npoo vim hais tias lub flatness tswj taw tes rau saum npoo. Lub flatness kam rau ua ib cheeb tsam yog ob qho tib si dav hlau 0.1 hli sib nrug. Qhov loj tsis tuaj yeem siab dua 31 lossis tsawg dua 29.
Vim li cas thiaj yuav tsum tau flatness?
Kev Ncaj Ncees tswj qhov waviness lossis variation ntawm qhov chaw yam tsis muaj kev txwv nruj dua rau ntawm qhov chaw. Peb siv flatness nyob rau hauv qhov chaw uas zoo mating ntawm ob qhov chaw yog ib qho tseem ceeb tab sis cov kev taw qhia tsis yog qhov tseem ceeb. Qee lub sij hawm, cov neeg tsim qauv siv lub tiaj tus hu kom muab tag nrho qhov chaw sib npaug ntawm kev hnav.
Kev tiaj tus cim dab tsi?
GD&T Flatness yog ib lub cim uas hais txogYuav ua li cas tiaj tus nto yog tsis hais txog ntawm lwm yam datum's los yog nta. Nws los hauv qhov muaj txiaj ntsig yog tias muaj qhov tshwj xeeb yuav tsum tau txhais ntawm daim duab uas yuav tsum tau ua kom zoo ib yam tsis tas yuav nruj lwm qhov ntev ntawm daim duab.
