Thaum nws los txog rau lub tshuab nqus tsev, kev sib raug zoo ntawm cov ntawv ABS thiab cov pwm yog txhua yam. Txawm tias cov khoom siv ABS zoo tshaj plaws yuav ua tsis tau qhov zoo tshaj plaws yog tias cov pwm tsis tsim nrog cov khoom tshwj xeeb hauv siab. Hloov pauv, cov pwm zoo nkauj tsim tsis tuaj yeem them nyiaj rau ABS daim ntawv uas yog thermally lossis mechanically mismatched.
Hauv phau ntawv qhia no, peb yuav tshawb xyuas seb ABS daim ntawv lub zog li cas - thickness, tiav, thiab thermal cwj pwm- ncaj qha cuam tshuam rau pwm tsim, ntau hom pwm haum rau ABS, thiab cov qauv tsim tseem ceeb uas ua kom muaj kev vam meej. Yog tias koj tab tom nrhiav rau tus khub uas muab ob qho tib si precision-made pwm thiab cov ntawv ua haujlwm siab ABS hauv qab ib lub ru tsev, kab lus no yuav qhia koj tias vim li cas qhov kev sib koom ua ke tseem ceeb.
Vim li cas Compatibility Matters
Vacuum forming yog qhov sib npaug ntawm cov cua sov, siab, thiab cov khoom ntws. Thaum cov pwm thiab cov ntawv ABS tau zoo sib xws, koj tau txais:
Nthuav nthuav dav luam tawm
Raws li phab ntsa thickness
Lub sij hawm voj voog ceev ceev
Tsawg kawg nkaus
Thaum lawv tsis sib haum, cov teeb meem tshwm sim tshwm sim: webbing, thinning, kev nyuaj siab whitening, warping, thiab nyuaj ejecting ib feem. Los ntawm kev nkag siab txog yam tseem ceeb uas txuas cov ntawv rau pwm, koj tuaj yeem zam cov pitfalls no thiab ua tiav cov txiaj ntsig zoo, rov ua dua.
Yuav ua li cas ABS Sheet Specifications cuam tshuam pwm tsim
1. Daim ntawv Thickness
ABS cov ntawv feem ntau muab faib ua nyias-gauge (0.5 mm - 3 mm) thiab tuab-gauge (3 mm - 10+ mm). Txhua qeb muab qhov xav tau sib txawv ntawm cov pwm.
Nyias-gauge ABSntws tau yooj yim thiab tuaj yeem khaws cov ntsiab lus zoo, tab sis nws yuav tsum tau pwm nrog qhov chaw du thiab qhov tso pa kom tsis txhob muaj cua ntxiab. Cov kaum sab xis tuaj yeem tsawg, feem ntau nyob ib ncig ntawm 1-2 degrees.
Thick-gauge ABSxav tau cov ntaub ntawv pwm muaj zog dua -feem ntau yog machined aluminium lossis steel- kom tiv taus ntau dua clamping quab yuam. Vim tias cov khoom tiv thaiv kev khoov, pwm cov ces kaum yuav tsum muaj cov radii dav dav (tsawg kawg ib zaug ntawm daim ntawv tuab) kom tsis txhob muaj kev ntxhov siab thiab cov khoom thinning.
2. Nto tiav
Yog tias koj daim ntawv ABS muaj qhov ua tiav zoo, cov pwm saum npoo yuav tsum yog iav polished. Txhua qhov khawb, cuab yeej cim, lossis qhov tsis zoo ntawm cov pwm yuav raug xa ncaj qha mus rau qhov ua tiav.
Rau cov nplooj ntawv ABS textured, cov pwm kev ntxhib los mos yuav tsum ua tib zoo sib xyaw. Qhov tob ntawm qhov kev ntxhib los mos (feem ntau teev los ntawm VDI 3400 tus qauv) yuav tsum tau sib xws nrog cov ntawv tuab. Yog tias qhov kev ntxhib los mos tob dhau rau daim ntawv nyias, cov khoom siv yuav tsis ntws mus rau hauv cov kab noj hniav zoo nkauj, ua rau "ntxhiab tawm" zoo li.
3. Cov cwj pwm cua sov
ABS muaj qhov kub-kho tau zoo piv rau cov ntaub ntawv xws li polystyrene lossis PETG. Qhov no txhais tau tias nws yuav siv sij hawm ntev dua kom txias, thiab qhov txias tsis sib xws tuaj yeem ua rau muaj kev sib ntaus sib tua lossis cov cim dab dej.
Txhawm rau tiv thaiv qhov no, pwm siv rau ABS yuav tsum tau nruab nrog cov cua txias kom zoo. Qhov zoo tshaj plaws, kev ua kom txias txias - qhov twg cov kab cua txias ua raws li cov duab ntawm qhov chaw - muab qhov ntsuas kub zoo sib xws thiab txo lub sij hawm voj voog ntau.
Hom Pwm thiab lawv Compatibility nrog ABS
Qauv Pwm (Ntaus, Resin, lossis 3D Luam Ntawv)
Prototype pwm yog qhov zoo tagnrho rau cov khoom ntim qis thiab tsim kev siv tau. Lawv ceev ceev los tsim thiab raug nqi.
Thaum siv ABS nrog cov qauv pwm, xyuam xim tshwj xeeb rautso pa tawm. ABS tso tawm cov pa roj thaum lub sij hawm tsim, thiab cov khoom siv pwm ntxeem tau (xws li cam khwb cia resin los yog luam ntawv polymer) tuaj yeem pab cov roj no khiav tawm. Yog tias cov pwm pwm yog cov khoom, cov qhov me me (0.2-0.5 hli) yuav tsum tau muab ntxiv rau hauv qhov tob tob kom tsis txhob muaj cua hauv hnab ris.
Vim peb muaj kev tsim pwm hauv tsev, peb tuaj yeem tsim cov pwm pwm uas tsim tshwj xeeb kom haum rau daim ntawv ABS uas koj npaj yuav siv hauv kev tsim khoom- tshem tawm qhov kev kwv yees tom qab.
Aluminium Moulds (Machined lossis Cast)
Aluminium yog qhov kev xaiv mus rau nruab nrab-rau siab-ntim ABS txoj kev. Nws cov thermal conductivity zoo heev tso cai rau kom ceev ceev, zoo ib yam txias, uas yog qhov tseem ceeb rau kev tswj qhov seem stability nrog ABS.
Machined aluminium moulds muaj kev ua haujlwm siab thiab tuaj yeem koom nrog cov kab txias txias. Cam khwb cia txhuas pwm yog kev lag luam ntau dua rau qhov loj thiab tseem muab kev ua haujlwm zoo thermal. Rau cov ntawv ABS txog li 4 × 8 ko taw thiab dhau mus, aluminium pwm muab lub zog thiab hloov hluav taws xob xav tau kom tau txais txiaj ntsig zoo ib yam.
Hlau Moulds
Cov pwm hlau yog tshwj tseg rau cov khoom ntim ntau heev lossis thaum cov ntawv ABS muaj cov khoom siv ntxiv, xws li iav fiber ntau lossis nplaim hluav taws. Hlau tiv taus qhov hnav ntawm ntau txhiab lub voj voog yam tsis muaj kev nthuav dav. Nws kuj tseem tso cai rau cov ntsiab lus sib txawv xws li cais cov cores lossis stripper rings - cov yam ntxwv qee zaum xav tau los tso cov khoom nrog cov undercuts.
Qhov tseem ceeb Pwm tsim nta rau ABS
Draft Angles
ABS muaj cov coefficient siab ntawm kev sib txhuam. Yog tsis muaj cov qauv txaus, qhov tsim yuav lo rau cov pwm, ua rau khawb thaum lub sij hawm ejection los yog txawm deformation mus tas li.
Polished pwm:Tsawg kawg yog 1-2 degrees
Textured pwm:Yam tsawg kawg 3-5 degrees (nyob ntawm qhov tob ntawm kev ntxhib los mos)
Ntxiv cov qauv tsis cuam tshuam kev tsim; nws yog ib qho tseem ceeb engineering yuav tsum tau txhim khu kev qha ntau lawm.
Radii (Keeb)
Ntse sab hauv cov ces kaum yog yeeb ncuab ntawm lub tshuab nqus tsev tsim ABS. Thaum ib daim ntawv kub tau kos rau hauv ib lub kaum ntse ntse, cov khoom siv thins heev, tsim kom muaj qhov tsis muaj zog uas yuav tawg hauv kev ntxhov siab.
Txoj cai zoo ntawm tus ntiv tes xoo yog siv lub kaum sab xis ntawm qhov tsawg kawg nkausib zaug ntawm daim ntawv thickness. Piv txwv li, yog tias koj tab tom tsim ib daim ntawv 4 hli ABS, qhov tsawg tshaj plaws hauv lub vojvoog ntawm cov pwm yuav tsum yog 4 hli. Qhov no tso cai rau cov khoom ntws mus zoo yam tsis muaj ntau dhau thinning.
Undercuts thiab Part Release
ABS tsis yog elastic li polypropylene; nws tsis ncab yooj yim tshaj qhov tob undercuts. Yog tias koj qhov kev tsim ib feem xav tau undercuts, xav txog kev siv:
Split pwmuas qhib nyob rau hauv ntau cov lus qhia tso tawm ib feem.
Stripper ringsuas thawb ib feem tawm ntawm pwm tusyees.
Peb feem ntau qhia cov neeg siv khoom kom tsim nrog "draft-tsuas yog" geometry thaum twg los tau, tab sis thaum undercuts yog unavoidable, peb pab neeg pwm engineering tuaj yeem tsim cov kev cai daws teeb meem uas ua haujlwm nrog cov yam ntxwv ntawm ABS.
Qhov cua
Kev tso cua kom raug feem ntau tsis saib xyuas tab sis tseem ceeb rau ABS. Cov qhov cua tso cai rau huab cua nyob nruab nrab ntawm daim ntawv thiab cov pwm kom khiav tawm tam sim ntawd thaum lub tshuab nqus tsev siv. Yog tias tsis muaj qhov cua txaus, cov hnab ntim huab cua tuaj yeem ua rau hlwv, tsis tiav, lossis "webbing" qhov twg cov ntawv txuas hniav hla cov kab noj hniav.
Vents feem ntau yog 0.02-0.05 hli sib sib zog nqus thiab 3-6 hli dav, nyob rau ntawm qhov tob tshaj plaws ntawm cov pwm thiab nyob rau hauv periphery.
Kev daws teeb meem kev sib raug zoo
Txawm tias nrog kev npaj ceev faj, kev tsis sib haum xeeb tuaj yeem tshwm sim. Nov yog peb qhov teeb meem tsis tu ncua thiab yuav daws lawv li cas los ntawm kev sib raug zoo ntawm daim ntawv-pwm.
| Teeb meem | Ua rau | Kev daws |
|---|---|---|
| Webbing(cov khoom siv ntau dhau hla cov tav lossis cov ces kaum) | Pwm qhov siab dhau heev txheeb ze rau daim ntawv sag; qhov cua tsis txaus | Txo cov pwm qhov siab los yog siv lub plug pab txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhaws |
| Txiv kab ntxwv tev(tsis sib xws, bumpy nto) | Pwm kub tsawg dhau; ABS overheated | Optimize pwm kub (feem ntau 50-65℃rau ABS) thiab xyuas kom meej txawm tias cua sov ntawm daim ntawv |
| Shrinkage / warping | Kev ua kom txias tsis sib xws; shrinkage pub tsis tsim rau hauv pwm | Ntxiv cov nyiaj shrinkage (0.4-0.7% rau ABS) rau pwm qhov ntev; sib npaug cua txias Circuit Court |
Vim peb tswj tau ob qho tib si ABS cov khoom thiab cov pwm tsim, peb tuaj yeem kho cov nqi qis thiab cov tswv yim ua kom txias tag nrho -ib yam uas nyuaj thaum daim ntawv thiab pwm los ntawm cov khoom sib txawv.
Qhov zoo ntawm Ib Qhov Chaw: ABS Sheets + Pwm
Thaum koj muab cov ntawv ABS los ntawm ib lub tuam txhab thiab cov pwm los ntawm lwm tus, koj feem ntau ntsib kev cuam tshuam. Cov ntawv xa khoom yuav tsis paub koj cov pwm geometry, thiab cov pwm tsim tuaj yeem xav tias cov khoom siv dav dav. Qhov no tuaj yeem ua rau:
Kev ncuathaum tos kev hloov kho
Ntxiv cov nqirau rework rau ntawm daim ntawv los yog pwm
ntiv tes tawthaum muaj teeb meem
Los ntawm kev xaiv tus khub uas muajob qho tib si kev cai ABS ntawv thiab hauv tsev pwm fabrication, koj nce:
Raws li thermal profiles:Peb tailor ABS yaj ntws thiab kub tsis kam kom haum rau thermal dynamics ntawm pwm peb tsim.
Shrinkage-compensated tooling:Peb xam qhov tseeb shrinkage raws li qhov tshwj xeeb ABS ntau koj yuav siv, tsis yog qhov nruab nrab generic.
Rapid prototyping:Peb tuaj yeem tsim cov pwm pwm thiab sim lawv nrog peb tus kheej cov khoom muag ABS-tsis tos rau cov khoom siv sab nraud.
Streamlined kev sib txuas lus:Ib pab neeg ua haujlwm txhua yam, kom ntseeg tau tias cov pwm tsim, qhov cua, thiab cua txias yog optimized rau cov ntawv tseeb uas yuav khiav hauv ntau lawm.
Cov lus nug nquag
Kuv puas tuaj yeem siv tib lub pwm rau ABS thiab polycarbonate (PC)?
Feem ntau, tsis muaj. ABS thiab PC muaj qhov sib txawv shrinkage tus nqi (ABS: 0.4-0.7%; PC: 0.5-0.8%) thiab sib txawv ua haujlwm kub. Lub pwm optimized rau ABS yuav ua rau PC tawg vim thermal stress. Yog tias koj npaj yuav khiav ntau yam ntaub ntawv, peb tuaj yeem tsim pwm nrog kev kho cua txias thiab qhov cua kom haum rau ob qho tib si.
Dab tsi yog qhov tsawg kawg nkaus lub kaum sab xis rau ABS lub tshuab nqus tsev tsim?
Rau polished aluminium pwm, peb pom zoo kom tsawg kawg 1-2 degrees. Rau kev ntxhib los mos, cov cua ntsawj ntshab yuav tsum tau nce mus rau 3-5 degrees, nyob ntawm qhov tob ntawm kev ntxhib los mos. Qhov no ua kom ntseeg tau qhov ejection yam tsis muaj kev puas tsuaj saum npoo.
Koj puas suav rau shrinkage thaum ua pwm?
Yog lawm. Txij li thaum peb tsim cov nplooj ntawv ABS ib yam nkaus, peb ua ntej suav qhov tseeb qhov sib piv raws li koj cov khoom siv tshwj xeeb (xws li, lub hom phiaj dav dav ABS, nplaim taws-retardant ABS, thiab lwm yam) thiab tsim cov nyiaj them ncaj qha rau hauv CNC programming rau pwm.
Kuv tuaj yeem kos daim ntawv ABS tob npaum li cas?
Qhov siab tshaj plaws kos qhov tob yog nyob ntawm daim ntawv tuab thiab seb puas siv lub ntsaws ntsaws. Raws li txoj cai ntawm tus ntiv tes xoo, kos piv ntawm1:1(qhov tob sib npaug rau qhov dav) yog ua tiav nrog tuab-gauge ABS yam tsis muaj kev pabcuam ntsaws. Nrog lub plug tsim kom zoo, kev sib sib zog nqus nqus tau ua tau thaum tuav cov phab ntsa tuab.
Xaus
Lub tshuab nqus tsev tsim ABS tsis yog ib qho loj-haum-tag nrho cov txheej txheem. Cov khoom siv lub thickness, nto, thiab thermal cwj pwm yuav tsum tau ua tib zoo sib xws rau cov pwm cov khoom, cov kaum sab xis, radii, thiab cua txias system. Thaum cov ntsiab lus sib xyaw ua ke, koj tau txais cov khoom zoo nrog lub sij hawm voj voog ceev thiab cov khoom pov tseg tsawg.
Los ntawm kev muab ob qho tib si precision-made pwm thiab cov ntawv ua haujlwm siab ABS, peb tshem tawm qhov kev kwv yees. Txawm hais tias koj xav tau cov qauv pwm rau kev tsim qauv tshiab lossis cov cuab yeej tsim khoom siab, peb xyuas kom meej tias koj daim ntawv ABS thiab pwm ua haujlwm ua ke raws li qhov zoo tshaj plaws los ntawm thawj lub voj voog.
Npaj txhij pib koj qhov project tom ntej?Hu rau peb hnub no los tham txog koj cov ntawv xav tau ABS thiab cia peb pab neeg ua pwm hauv tsev tsim cov cuab yeej zoo rau koj daim ntawv thov.