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Kumaliza pamwamba mu cnc Machining

CNC mphero ndi kutembenuka ndizosinthasintha, zotsika mtengo komanso zolondola, komabe kuthekera kwa magawo opangidwa ndi CNC kumakulirakulirabe zikamalizidwa zowonjezera.Kodi mungasankhe bwanji?Ngakhale kuti likuwoneka ngati funso losavuta, yankho lake ndi lovuta chifukwa pali zinthu zambiri zofunika kuziganizira.

Choyamba, kodi kumaliza ndi chiyani?Kodi ndikuwongolera kukongola kapena magwiridwe antchito?Ngati chomalizacho, ndi mbali ziti za magwiridwe antchito zomwe ziyenera kuwongoleredwa?Kukana kwa dzimbiri, kuuma kwa pamwamba, kukana kuvala kapena kutchingira kwa EMI/RFI?Awa ndi ena mwa mafunso oti ayankhidwe kotero, pongoganiza kuti wopanga amadziwa zolinga zake, tiyeni tiwone njira zosiyanasiyana.

Kumaliza kwa CNC machined zitsulo ndi aloyi mbali prototype
Pazaka 40 zapitazi, akatswiri opanga makina a Prototype Projects apemphedwa kuti apange zitsulo kuchokera kumagulu ambiri azitsulo ndi ma aloyi kuti agwiritse ntchito m'mafakitale ambiri.Zigawo zamakina a CNC zimachotsedwa nthawi zonse, kutsukidwa ndi kuchotsedwa, koma pambuyo pake, kusankha komaliza kowonjezera ndikwambiri.

Tsopano, zitsulo zodziwika kwambiri zamakasitomala ndi aluminiyamu, chitsulo chosapanga dzimbiri.

Zodziwikabe koma sizitchulidwa kawirikawiri ndi mkuwa, mkuwa, phosphor bronze, chitsulo chofatsa, chitsulo chachitsulo.Nthawi ndi nthawi, makasitomala amapemphanso makina a CNC muzitsulo zina zambiri ndi ma aloyi.

Zitsulo ndi aloyi akhoza kumalizidwa m'njira zosiyanasiyana.Mwachitsanzo, aluminiyamu nthawi zambiri imatha kukhala ya anodised, hardcoat anodised, kapena yakuda kapena yakuda, ngakhale 6082 aluminium alloy imavomereza anodising mocheperapo kuposa magiredi ena.Momwemonso, mbale ya 5083 yomwe timagwiritsa ntchito imatha kupanga timadontho-maanga.Kusankha kumatengera ngati chofunikira ndichowonjezera kukongola kapena magwiridwe antchito (makamaka kukana kwa dzimbiri kapena kukana kuvala).

Chitsulo chosapanga dzimbiri sichikhala ndi dzimbiri, koma nthawi zina makasitomala amatchula zina zowonjezera.Mwachitsanzo, kupukuta kwa magetsi kumapanga mapeto apamwamba kwambiri komanso kuchotsa ming'alu ndi m'mphepete mwa mbali zovuta.Kumbali ina, ngati kuuma kwa pamwamba, kukana kuvala kapena kutopa kumafunika kuwongolera, zonse 304 ndi 316 zitsulo zosapanga dzimbiri zimatha kukhala nitrided kapena nitrocarburised.

Chitsulo chofewa chimapindula mwina ndi kusankha kotakata komaliza.Zosankha zikuphatikiza utoto wonyowa, utoto wa electrophoretic, zokutira ufa, electroplating, kuyika mankhwala, kuphulika kwa mikanda, electropolishing, kuuma kwa kesi, zokutira za titanium nitriding (TiN), nitriding ndi nitrocarburising.

Mkuwa ndi mkuwa nthawi zambiri zimatchulidwa kuti zigwire ntchito, popanda kutsiriza kofunikira pambuyo pa makina.Komabe, ngati kuli kofunikira, zigawo zimatha kupukutidwa pamanja, kupukuta ndi electropolished, electroplated, nthunzi kuphulika, lacquered kapena kuthandizidwa ndikuda kwa mankhwala.

Zotsirizira zomwe tazitchula pamwambapa sizomwe zilipo pazitsulo ndi alloys.Ndife okondwa nthawi zonse kukambirana zomaliza ndi makasitomala ndipo timayesetsa kuthandiza kulikonse komwe tingathe.

Kumaliza kwa CNC machined pulasitiki mbali prototype
Monga momwe zilili ndi zitsulo ndi aloyi, mbali zonse za pulasitiki zomwe makina a CNC amachotsedwa, kutsukidwa ndi kutsukidwa koma, pambuyo pake, zosankha zomaliza zimakhala zosiyana.

Monga makasitomala ambiri amapempha CNC makina opangidwa ndi mapulasitiki amtundu wa acetal (wakuda kapena achilengedwe) kapena acrylic, timasunga izi kuti tigwiritse ntchito makina athu a Express CNC.Acetal savomereza zomaliza zowonjezera, chifukwa chake magawo nthawi zambiri amaperekedwa 'monga makina'.Acrylic, pokhala yomveka, nthawi zambiri amapukutidwa kuti apereke mawonekedwe ngati galasi.Izi zitha kuchitidwa pamanja ndi magiredi otsogola motsatizana, kapena ndi kupukuta moto.Ngati ndi kotheka, acrylic akhoza kupakidwa utoto wa acrylic kapena vacuum metallised kuti akwaniritse mawonekedwe owoneka bwino.
Kupitilira acetal ndi acrylic, timapanga makina a CNC kuchokera kumitundu yambiri yamapulasitiki aumisiri.

Zina mwa izi ndizosavuta kumaliza kuposa zina, kotero ndinu olandirika nthawi zonse kukambirana za zida ndikumaliza nafe musanapemphe mtengo.Kutengera pulasitiki, titha mchenga, zigawo zikuluzikulu ndi penti, kupukuta (pamanja kapena ndi lawi), mbale electroless kapena vacuum metallise.Kwa mapulasitiki ena omwe ali ndi mphamvu zochepa pamtunda, kukonzekera kwapadera pamwamba ndi mankhwala oyambira kapena a plasma ndikofunikira.

Kuyang'ana kowoneka bwino kwa magawo opangidwa ndi makina a CNC
Chifukwa chimodzi chomwe makasitomala amasankhira kukhala ndi zigawo za CNC zosindikizidwa m'malo mwa 3D ndikulondola kwambiri.Kulekerera kwathu kotchulidwa kwa magawo opangidwa ndi CNC ndi ± 0.1mm, ngakhale miyeso nthawi zambiri imakhala yololera movutikira, kutengera zakuthupi ndi geometry.Nthawi zonse timayang'ana miyeso yoyimira pambuyo popanga makina, ndipo makasitomala amathanso kufunsa kuti nawonso awonetsedwe zina.

Nthawi zambiri miyeso imatha kutengedwa ndi ma calliper am'manja kapena ma micrometer koma makina athu oyezera (CMM) ndi abwino kuti muwunikenso bwino.Izi zimatenga nthawi ndipo sizipezeka ndi ntchito yathu ya Express CNC koma ndiyofulumira kuposa kutumiza magawo kwa gulu lachitatu kuti liwonedwe ndi CMM.Kupatulapo kokha ndi pamene ndondomeko yoyendera bwino ya CMM ikufunika, kapena gulu la magawo lapangidwa ndi makina ndipo 100 peresenti amafunika kuyang'anitsitsa.

Assembly options kwa CNC machined mbali chitsanzo
'Assembly' apa akutanthauza chilichonse kuyambira kuyika ma Helicoils m'zigawo za aluminiyamu aloyi kapena zoyikapo za pulasitiki, mpaka pakuyika ma bearing ndi kugwiritsa ntchito zilembo zosindikizidwa.Nthawi zambiri timapemphedwa kuti tiphatikize magawo opangidwa ndi CNC ndi zigawo zina zofananira, kaya zapangidwa ndi CNC, 3D yosindikizidwa kapena vacuum.
M'malo mwake, tipanga pafupifupi mulingo uliwonse wa ma prototypes ogwira ntchito kapena zitsanzo zowoneka bwino, kuphatikiza magawo ofananira kapena zigawo zakunja za alumali ngati pakufunika.Njira ina ndi overmould CNC machined mbali ndi polyurethane ndi zingalowe kuponyera.


Nthawi yotumiza: Dec-13-2021