Kev tsim qauv rau kev tsim khoom ntawm MIM qhov chaw (txheej txheem tsim & ua haujlwm tom qab sintering) - Ntu 1

Kev tsim qauv rau kev tsim khoom ntawm MIM qhov chaw (txheej txheem tsim & ua haujlwm tom qab sintering) - Ntu 1

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Tsim rau manufacturability ntawm MIM qhov chaw

Kev tsim ntawm MIM qhov chaw zoo ib yam li cov yas txhaj tshuaj molding.

Ua ntej, peb tau qhia txog cov txheej txheem rau kev xaiv MIM txheej txheem. Vim tias nws tsis yog txwv los ntawm cov txheej txheem kev tsim cov hlau ib txwm muaj, cov neeg tsim qauv siv tau cov tswv yim tshiab los rov xav txog cov khoom tshiab los ntawm qhov pib, xav txog seb cov txheej txheem tsim khoom tuaj yeem txo qhov hnyav ntawm cov ntaub ntawv, yuav ua li cas muab ntau qhov chaw rau hauv ib feem, lossis yuav ua li cas rau kev ua hauj lwm thiab zoo nkauj nta.

Txhawm rau ua MIM qhov chaw (txawm yog tsim los tshiab lossis hloov cov khoom yav dhau los ua los ntawm lwm cov txheej txheem) muab tag nrho cov kev ua si rau qhov zoo ntawm MIM txheej txheem thiab txhim khu kev ua tau zoo hauv cov txheej txheem tsim, cov qauv tsim hauv qab no tau tshaj tawm thiab luam tawm ntawm CNPIM.COM hmoov txhaj tshuaj molding website.

Hauv seem no, qee cov ntaub ntawv hais txog kev ua haujlwm tom ntej ntawm sintering kuj suav nrog.

Kuv Technological design

Qhov yooj yim tshaj plaws MIM yog tsim nrog cov kab noj hniav uas tsim los ntawm lub dav hlau ua ke ntawm ob ib nrab-pwm. (Saib rau kev nyeem: MIM pwm qauv)

Ntawm lawv, cov pwm ib nrab yog tsim los ntawm cov tub ntxhais uas muaj qhov sib txawv ntawm qhov sib txawv nruab nrab ntawm cov pwm, thiab qhov kev tshem tawm tsis zoo yog siv los tsim cov khoom nrog cov phab ntsa tuab.

Cov tub ntxhais molding yog cov yam ntxwv sab hauv ntawm ib feem, thaum cov kab noj hniav molding yog cov yam ntxwv sab nraud ntawm qhov.

Tag nrho cov yam ntxwv ntawm tus qauv tsim yuav tsum yog molded qhov chaw uas tuaj yeem tso tawm ntawm cov pwm kab noj hniav thiab solidified los ntawm cov tub ntxhais nrog lub ejector tus pin.

Thaum lub complexity ntawm MIM qhov chaw nce, lub slider, core thiab lwm yam cuab yeej siv nyob rau hauv yas txhaj molding yuav muab ntxiv rau daim ntawv.

Thaum nce tus yam ntxwv ntawm cov khoom, qhov nyuaj ntawm cov khoom nce. Nyob rau lub sijhawm no, cov nqi khiav lag luam ntawm cov cuab yeej thiab cov cuab yeej siv cuab yeej muaj feem xyuam rau kev ua haujlwm dav dav thiab kev ua haujlwm tom ntej lossis kev sib dhos tuaj yeem raug tshem tawm, kom MIM cov khoom tuaj yeem tau txais txiaj ntsig kev lag luam.

Hauv txhua theem ntawm kev tsim, cov txiaj ntsig thiab cov nqi no yuav tsum tau ua tib zoo ntsuas rau ib leeg.

Thaum tsim MIM qhov chaw, txhawm rau kom tau txais tag nrho cov txiaj ntsig ntawm cov txheej txheem no, cov ntsiab lus tseem ceeb hauv qab no yuav tsum raug coj mus rau hauv tus account: cov phab ntsa tuab tuab, ntu ntu hloov pauv, qhov tshem tawm qhov tseem ceeb, demoulding txoj kab nqes, txhawb nqa tav thiab hais phaj, chamfer thiab rounding, xov, qhov thiab zawj, undercut, pouring system, parting kab, hniav nta, sintering kev them nyiaj yug, thiab lwm yam.

Cov hauv qab no yuav piav qhia nyias.

1.1 Uniform phab ntsa thickness

Yog tias ua tau, phab ntsa tuab ntawm tag nrho MIM feem yuav tsum yog tib yam. Txawv thickness yuav ua rau distortion, internal stress, qhov, tawg thiab dents. Tsis tas li ntawd, nws yuav ua rau tsis sib xws shrinkage thiab cuam tshuam rau qhov ntev ntev thiab tswj.

Lub thickness ntawm qhov chaw yuav tsum tsis pub dhau 1.3 ~ 6.3 hli.

Txhawm rau ua kom cov phab ntsa tuab ntawm MIM qhov tsis sib xws, Daim duab 1 qhia ntau txoj hauv kev los hloov cov duab.

Tsim rau manufacturability ntawm MIM qhov chaw (txheej txheem tsim & post-sintering ua) - phab ntsa thickness uniformity

Daim duab 1 - Muaj ntau txoj hauv kev uas hloov cov duab

1.2 Thickness hloov seem

Qee zaum, phab ntsa thickness uniformity tsis tuaj yeem ntsib, yog li kev hloov pauv ntawm cov thicknesses sib txawv yuav tsum tau tsim maj mam. Raws li pom hauv daim duab 2

Tsim rau manufacturability ntawm MIM qhov chaw (txheej txheem tsim & post-sintering ua)

Daim duab 2 - Thickness hloov pauv

1.3 Core tshem tawm qhov

Kev siv cov tub ntxhais-tshem tawm qhov tuaj yeem txo qhov hla mus rau qhov txwv ntawm cov txheej txheem, ua tiav cov phab ntsa tuab, txo cov khoom siv thiab txo lossis tshem tawm cov haujlwm txiav.

Raws li pom nyob rau hauv daim duab 3, cov kev taw qhia nyiam yog thaum uas tig mus rau lub pwm qhib kev taw qhia, nyob rau hauv lwm yam lus, perpendicular mus rau lub parting kab.

Vim hais tias cov tub ntxhais pas nrig tau txhawb nqa ntawm ob qho kawg, nws yog qhov zoo dua los siv los ntawm lub qhov tsis yog qhov muag qhov muag. Lub qhov muag tsis pom kev siv cantilever pas nrig.

Tsim rau manufacturability ntawm MIM qhov chaw (txheej txheem tsim & post-sintering ua)

Daim duab 3 - Core tshem tawm qhov

1.4 Demoulding txoj kab nqes

Lub kaum sab xis tso tawm yog lub kaum sab xis me me ntawm qhov chaw, uas yuav tsum tau ua tib zoo sib xws rau kev txav mus los ntawm tus qauv ib feem.

Rau mandrels, tshwj xeeb tshaj yog raug.

Lub demoulding nqes hav yog rau qhov yooj yim ntawm demoulding thiab ejecting lub preformed qhov chaw. Txoj kev demoulding feem ntau yog 0.5 ~ 2 degrees. Lub kaum sab xis tso tawm tiag tiag nce nrog qhov tob ntawm lub qhov tsim los yog concave, qhov nyuaj ntawm ib feem, lossis tus naj npawb ntawm cov cores.

Daim duab 4 qhia qee qhov xwm txheej uas yuav tsum tau tso lub kaum sab xis.

Tsim rau kev tsim khoom ntawm MIM qhov chaw (kev tsim qauv & kev ua haujlwm tom qab sintering) - lub kaum sab xis

Daim duab 4 - Stripping angle

1.5 Nthuav cov tav thiab lub vev xaib

Stiffening ribs thiab webs yog siv los txhawb cov phab ntsa nyias thiab zam cov ntu tuab.

Ntxiv nrog rau kev ua kom lub zog thiab rigidity ntawm phab ntsa tuab, nws kuj tuaj yeem txhim kho cov khoom ntws thiab txo qhov cuam tshuam.

Lub thickness ntawm lub reinforcing rib yuav tsum tsis txhob tshaj lub thickness ntawm cov nyob ib sab phab ntsa. Yog xav tau cov thicker stiffeners structurally, ntau stiffeners yuav tsum tau siv xwb.

Daim duab 5-1 qhia qhov pom zoo piv ntawm stiffeners. Daim duab 5-2 qhia tau hais tias yuav ua li cas siv cov ribs thiab cored qhov kom txo qhov hnyav thaum tuav lub zog ua haujlwm ntawm qhov chaw.

Tsim rau manufacturability ntawm MIM qhov chaw (txheej txheem tsim & post-sintering ua)

Tsim rau manufacturability ntawm MIM qhov chaw (txheej txheem tsim & post-sintering ua)

Daim duab 5 - Siffening tav thiab web

1.6 Kev sib tw thiab kev sib tw

Daim duab 6 qhia chamfering thiab rounding.

Chamfering thiab rounding tuaj yeem txo qhov kev ntxhov siab ntawm kev sib tshuam ntawm cov yam ntxwv; Nws tshem tawm cov kaum ntse ntse uas tuaj yeem ua rau tawg thiab xeb ntawm cov qauv ntawm cov qauv, ua kom yooj yim rau cov khoom siv txhaj tshuaj ntws mus rau hauv cov qauv thiab pab cov khoom tawm ntawm cov pwm kab noj hniav, uas yog qhov zoo rau kev ua haujlwm molding.

Tsim rau manufacturability ntawm MIM qhov chaw (txheej txheem tsim & post-sintering ua)

Daim duab 6 - Rounding thiab chamfering

1.7 Xov

Cov xov sab hauv thiab sab nraud tuaj yeem tsim los ntawm MIM txheej txheem. Txawm li cas los xij, piv nrog screwing tawm cov tub ntxhais, cov xov tapping los ntawm kais yog ntau meej thiab raug nqi.

Txhawm rau tshem tawm cov qauv cov khoom uas ntsia hlau tawm ntawm cov xov tsim, cov xov sab nraud ntawm cov qauv ib feem ntawm cov xov tsim yuav tsum zoo dua nyob rau ntawm txoj kab sib faib ntawm cov qauv tsim.

Yuav kom tswj tau cov xov ntev ntev ntawm txoj kab uas hla, nws yog feem ntau teev tias muaj ib lub dav hlau 0.127mm me me ntawm txoj kab sib faib, raws li qhia hauv daim duab 7. Qhov no tuaj yeem xyuas kom meej tias tus qauv raug kaw kom zoo, txo cov kab ntawm txoj kab sib cais, zam qhov burr ntawm lub hauv paus ntawm cov xov, thiab yog li txo qhov kev saib xyuas ntawm tus qauv.