1, Kev tsim ua ntej deformation yog qhov tseem ceeb
Hais txog nws pib huab cua & dej tank khoom yas pwm, qhov zoo tswj ntawm kev tsim thiab kev tsim khoom yog qhov nyuaj tshaj li hom ib txwm, raws li hom no feem ntau yog molded los ntawm cov khoom PA6 (PA66) + GF (30-35%) compound, thiab qhov no hom khoom yog ib qho yooj yim kom tau txais lub deformation thaum lub sij hawm molding txheej txheem, thiab coj cov khoom loj yog ib qho yooj yim yuav tawm ntawm kam rau ua. Yog li ntawd, paub txog nws qhov kev deformation tsis tu ncua, tom qab ntawd ua qhov kev tsim ua ntej deformation raws li kev paub dhau los thiab CAE kev tsom xam ua rau cov txheej txheem tsim thaum ntxov tau dhau los ua tus yuam sij rau kev ua tiav ntawm kev tsim pwm.
Enuo pwm pab pawg muaj ntau tshaj 10 xyoo kev paub ntawm pre-deformation pwm ua, thiab tau ua hauj lwm rau Valeo, Mahle-behr, Delphi thiab lwm yam ntiaj teb no-nto moo tsheb qhov chaw cov neeg muas zaub. Ntawm no peb luv luv qhia peb cov kev paub ntawm nws pib cua & dej tank pwm ua. Kom paub meej, cov tuam txhab sib txawv muaj cov kev coj ua sib txawv, yog tias tus nyeem ntawv muaj kev xav sib txawv, kuj zoo siab tos txais los tham nrog peb.
2, Kev txheeb xyuas qhov kos duab kos duab, qhia meej txog qhov tseem ceeb ntawm cov khoom thiab qhov loj me
Txhawm rau nkag siab txog qhov tseem ceeb ntawm cov khoom thiab qhov loj me me uas cuam tshuam yog thawj kauj ruam thaum cov neeg siv khoom kos duab kos duab tuaj txog, tom qab ntawd ua tib zoo saib xyuas cov khoom tseem ceeb, xws li cov khoom "End nto" ("End nto" yuav tsum tau nruj nruj nruj, flatness. thiab daim ntawv loj kam rau ua, thiab lwm qhov chaw ntawm cov khoom dimension yuav ua raws li lawv cov kev hloov), "Tube orifice" cheeb tsam (qhov loj ntawm "tube orifice" kuj tseem ceeb heev, feem ntau yuav tsum tau positioning, cylindrical thiab dimension tolerances) thiab cov khoom " Boss" thiab "U-zoo" tav thiab lwm yam, lawv tau qhia hauv qab no:
Rau cov pwm tshiab, ua ntej deformation ntawm cov khoom (ua "cov khoom them nyiaj" ntawm qhov kev taw qhia ntawm kev kwv yees deformation ua ntej raws li kev paub dhau los thiab CAE tsom xam, thov kom ua kom lawv raug tom qab qhov tseeb deformation ua). Tom qab kev sim pwm, ua qee qhov kev hloov kho me me raws li qhov tseeb deformation ntawm cov khoom molding, kho cov yas geometry, cov duab thiab txoj hauj lwm thiab lwm yam.
3, Kos cov khoom.
Txhawm rau pab txhawb rau yav tom ntej pwm optimizing, kos duab 3D cov ntaub ntawv khoom tshiab los ntawm peb tus kheej raws li cov neeg siv khoom yog qhov tsim nyog (qhov tseem ceeb yuav tsum tau khaws cia). Kev txiav txim siab cov khoom deformation tus nqi, ua ke nrog pwm khiav tsom thiab kev paub los hloov cov ntaub ntawv cov khoom, hauv qab no koj tuaj yeem pom cov kev paub txog deformation:
Ntawm no, qee cov lus qhia zoo siab tau muab qhia thaum lub sijhawm rov ua dua tshiab, xws li: ib txwm pib ntawm kev kos duab "Base kawg nto" cheeb tsam, raws li tus nqi deformation los kos ncaj, flatness nkhaus ntawm ntug ntawm cov khoom, xa mus rau cov nkhaus. mus rau "stretch" (UG hais kom ua) straightness nto. Flatness nto yog ua tiav nrog "Border" (UG hais kom ua). Cov kauj ruam no yog qhov tseem ceeb, txhawm rau pab txhawb kev hloov pauv yav tom ntej, kos lub nkhaus ua ntej, tsis txhob "stretch" (UG hais kom ua) nto ncaj qha, tom qab ntawd siv deformation nto ntawm qhov ncaj tau txais cov khoom zoo li "Offset" (UG hais kom ua). Txhawm rau kom tsis txhob hloov pauv pwm ntau dhau thaum lub sijhawm pwm ua kom zoo dua, ua cov khoom yas txiav ntawm cov khoom "Pib kawg ntawm qhov chaw", tom qab ntawd rov qab rau hauv T1-T3 kev hloov kho raws li cov khoom siv tiag tiag deformation (ntxiv rau cov yas).
Cov lus qhia them yuav pab tau:
1. Tsis txhob luam cov neeg siv khoom profile nto kom deb li deb tau, sim kos los ntawm koj tus kheej. Yog li ntawd, rau kev hloov pauv pwm hauv qab no yog qhov yooj yim hloov pauv, suav nrog phab ntsa tuab. Yog tias cov duab luam tawm los ntawm cov neeg siv khoom, tom qab ntau qhov kev hloov kho, 3D cov ntaub ntawv yuav tau txais qhov tsis sib xws.
2. Nyob rau hauv tus txheej txheem ntawm kev kos duab, ntau npaum li qhov ua tau los xyuas cov neeg siv khoom 2/3D cov ntaub ntawv khoom kom tsis txhob muaj qhov sib txawv.
4, Qhov ua tau deformation qauv ntawm cov khoom tseem ceeb
1, Lub deformation ntawm cov khoom "Pib kawg nto"
Raws li qhov ua tau los txo qhov kev txiav txim ntawm cov khoom yas thaum pib, nws tuaj yeem zam kev rov ua cov pwm pwm kom deb li deb tau. Cov kab liab hauv qab no qhia txog cov khoom kwv yees deformation sib. Thov nco ntsoov cov "Boss" lossis "U-shaped" tav lossis cov khoom siv cuam tshuam yuav tsum tau txav mus nrog "Base kawg nto" ua ke (Qee cov khoom hauv qab tus thawj txav mus rau 0.5 hli, tom qab ntawd tus "Boss" yuav tsum qis dua 0.5. ), thiab tom qab ntawd kos lwm tus. Nws raug nquahu kom siv "sov" (UG hais kom ua) los kos lawv.
2, Cov khoom deformation ntawm "Tube orifice"
Lub vojvoog "R" ntawm lub hauv paus ntawm lub raj yuav tsum zoo ib yam li cov neeg siv khoom cov ntaub ntawv, vim qhov "R" vojvoog no cuam tshuam rau lub zog ntawm thaj chaw tseem ceeb ntawm cov khoom. Rau qhov xwm txheej ib txwm, lub raj puag ncig yuav tsum tau txo cov yas los ntawm ib sab ua ntej, tom qab ntawd hloov tus nqi raws li qhov tseeb deformation, rau lub raj loj, lub raj zoo li yuav tsim los ua oval ua ntej.
3, cov khoom "U" zoo li yas me ntsis deformation
"U-zoo" yas kuj yuav tsum tau ua li 2-3 degrees deformation, thaj tsam nruab nrab ntawm "U-zoo" tav yuav tsum ua cov khoom txiav los ntawm sab (daim duab 1). Tom qab tag nrho cov khoom tau raug kos zoo thiab tom qab ntawd tsim lub voj voog "R" (tseem rau kev hloov pauv, qee zaum "R" lub vojvoog rov tsim dua yuav ua tsis tau lossis siv sijhawm ntev), yog tias qee qhov geometry hauv cov neeg siv khoom 3D cov ntaub ntawv tsis chamfered, peb tuaj yeem chamfer lawv yog tias lawv tsis cuam tshuam rau cov khoom sib dhos (feem ntau cov neeg siv khoom nyiam cov duab ntse yuav chamfered nrog "R" vojvoog). Tsis tas li ntawd, qee qhov tseem ceeb geometry ntawm cov khoom tseem ceeb ntawm lub cev yog qhov loj, hom khoom deformation yuav tsum tau them nyiaj ntau dua rau kev sib luag thiab kev sib luag (daim duab 2).
5, Xaus
Saum toj no yog peb tus kheej kev paub ntawm kev tsim lub tshuab pib cua & dej tank- "yooj yim deformation" khoom pwm. ua kom tiav cov kauj ruam no zoo, kuv xav tias ib nrab ua tiav ntawm cov pwm tsim yuav tau txais, ces qhov twg yog ib nrab? thov mus saib tshooj tom ntej ntawm tsab xov xwm no "Koj puas paub yuav ua li cas ua ntej deformation pwm?-tsim seem" lub lim tiam tom ntej.
Ok, nyob zoo cov neeg nyeem. ua tsaug ntau rau koj lub sij hawm los nyeem ntawm no.looking to see you on next section!
Post lub sij hawm: Jul-27-2020