Kumaliza ndi gawo lomaliza pa ntchito yokonza makina a CNC ndipo kungagwiritsidwe ntchito kukweza ubwino wa chinthu. Kumaliza kumatha kuchotsa zolakwika m'mawonekedwe, kusintha mawonekedwe a chinthucho, ndikuwonjezera mphamvu ya makina kapena magwiridwe antchito amagetsi.
Poyang'anizana ndi njira zosiyanasiyana zochizira pamwamba, kodi oyang'anira zinthu ndi opanga zinthu amasankha bwanji njira yabwino kwambiri? Musadandaule, njira zochiritsira zotsatirazi zili ndi ubwino wawo. Malingana ngati mukumvetsa makhalidwe a njira iliyonse, mutha kuwonjezera mfundo ku chinthucho.
Wofalamankhwala pamwambaza zida zopangidwa ndi makina a CNC
Momwe zinthu zikuyendera
Pamwamba pa ziwalo zopangidwa ndi CNC machining amatchedwa "pamwamba pa makina". Pamwamba pake ndi wovuta koma ali ndi zolekerera zolimba, zomwe ndizokwanira pa ntchito zina zauinjiniya. Kulimba kwapakati ndi pafupifupi 3.2μm, ndipo sikufunika kukonza pambuyo pake, kotero kupanga bwino kumakhala kwakukulu.
Pa ntchito zomwe kulondola kwa miyeso ndikofunikira kwambiri kuposa mawonekedwe, malo opangira awa ndi okwanira. Komabe, chifukwa cha kuuma kwake komanso kusowa kwa chophimba choteteza, pamwamba pake pali mphamvu zochepa zotetezera ndipo nthawi zambiri zimakhala ndi mikwingwirima ndi kuwonongeka. Ponseponse, chiŵerengero cha mtengo/ntchito chimakhala chokwanira nthawi zina, pomwe chithandizo china cha pamwamba chingafunike pamene chitetezo chili chachikulu.
Kupaka mafuta m'thupi (anodizing) ndi njira yamagetsi yomwe ingapangitse filimu yokhuthala komanso yokhuthala ya oxide pamwamba pa ziwalo zopangidwa ndi CNC, zomwe zimapangitsa kuti chitetezo chizigwira ntchito bwino.
Njirayi ingagwiritsidwe ntchito pa aluminiyamu kapena titaniyamu chifukwa ndi yoyendetsa bwino kwambiri. Panthawiyi, aloyi imayikidwa mu thanki ya electrolyte yokhala ndi asidi kuti ikhale anode, ndipo mphamvu yamagetsi imagwiritsidwa ntchito kuphatikiza ma ayoni a okosijeni mu asidi ndi maatomu a aloyi pamwamba kuti apange filimu ya oxide.
Pali mitundu iwiri ikuluikulu ya anodization. Ndi njira yofanana yonse, koma imafuna kuti zigawozo zilowe mu sulfuric acid solutions zosiyanasiyana. Mtundu wachiwiri umatchedwa "decorative anodization", womwe umapanga kupaka kowonekera kapena kofiirira ndi makulidwe a 4-25 μm; mtundu wachitatu umatchedwa "hard coat anodization", womwe uli ndi makulidwe a 125 μm ndipo sutha kutha.
Ponseponse, zomalizidwa ndi anodized zimakhala zolimba komanso zokhazikika, zomwe zimapangitsa kuti zikhale zabwino kwambiri pazipinda zamkati ndi zigawo zazing'ono zomwe zimafuna magwiridwe antchito apamwamba. Ndi imodzi mwazosankha zabwino kwambiri pakati pa zomalizidwa ndi makina a CNC, koma mtengo wake ndi wokwera.
Kuphimba ufa
Kupaka ufa kumafanana ndi utoto wopopera. Choyamba, mankhwala oletsa dzimbiri a phosphate kapena chromate amaikidwa pamwamba pa gawolo, kenako ziwalozo zimapopera ufa wouma ndi mfuti ya electrostatic ndikuwupaka mu uvuni woposa 200°C. Kuyika zinthu zambiri kumatha kufika makulidwe a 72μm.
Mankhwalawa okha amatha kupanga filimu yoteteza ziwalo za CNC, yomwe ndi yolimba, yosatha ntchito komanso yokongola. Itha kuphatikizidwa ndi kuphulika kwa mchenga kuti iwonjezere magwiridwe antchito oletsa dzimbiri komanso kufanana kwa pamwamba pa ziwalo.
Mosiyana ndi anodizing, utoto wa ufa umagwirizana ndi zitsulo zonse, uli ndi kulimba kwamphamvu, komanso kukana kukhudza kwambiri, zomwe zimapangitsa kuti ukhale woyenera kugwiritsidwa ntchito m'njira zosiyanasiyana, makamaka ntchito zankhondo.
Koma utoto wa ufa uli ndi mawonekedwe osakwanira ndipo suyenera kugwiritsidwa ntchito pazinthu zazing'ono kapena mkati. Kuphatikiza apo, mtengo wokwera ungachepetse kugwiritsidwa ntchito kwake popanga zinthu zazikulu.
Kupukuta mikanda kumagwiritsidwa ntchito kuwonjezera mawonekedwe a pamwamba pa chinthu chopangidwa ndi makina a CNC. Panthawiyi, mpweya wopanikizika umayendetsa mikanda yagalasi yambirimbiri motsutsana ndi chinthucho, ndikuchotsa bwino zizindikiro za zida ndi zolakwika kuti apange mawonekedwe ofanana a tinthu tating'onoting'ono. Mosiyana ndi zomaliza zina monga anodizing ndi ufa, kupukuta mikanda sikusintha gawolo mwa mankhwala kapena mwamakina - kumasintha mawonekedwe ake. Mosiyana ndi ufa womwe umawonjezera zinthu, kupukuta mikanda kumachepetsera chifukwa kumachotsa zinthu zochepa. Izi ndizofunikira kwambiri ngati gawo lanu lili ndi zolekerera zochepa.
Kupukuta mikanda ndi chimodzi mwa zinthu zotsika mtengo kwambiri, koma zimafuna kugwiritsa ntchito pamanja. Anthu amene akuganizira zimenezi ayenera kuwerengera ndalama za wogwiritsa ntchito wophunzitsidwa bwino chifukwa ubwino wa kumaliza umadalira kwambiri luso. Mtundu wa mikanda ndi kukula kwake zimakhudzanso zotsatira zake. Ngakhale kuti ndi njira yogwiritsira ntchito pamanja, kupukuta mikanda kumakhalabe njira yosinthasintha komanso yotsika mtengo yopangira zinthu za CNC zomwe sizimaphikidwa mopitirira muyeso.
Malangizo pa kumaliza zida zopangidwa ndi makina a CNC
Mwachidule, pazigawo zomwe sizikufuna chithunzi chabwino koma ziyenera kusunga miyeso yawo yoyambirira, njira zochizira pambuyo pa ntchito monga anodizing kapena ufa wophimba zitha kukhala njira yothandiza. Anodizing imawonjezera mphamvu zoteteza za aluminiyamu kapena titaniyamu. Ngati gawo silingathe kusinthidwa koma limafuna mphamvu ndi kukana kugunda, ufa wophimba umapereka njira ina. Pamapeto pake, ngati kugwiritsa ntchito bwino ndalama ndikofunikira kuposa kulekerera—ndipo gawolo silikufuna malo osalala—kuphulitsa mchenga kungakhale njira yabwino.
Mainjiniya, opanga mapulani, ndi oyang'anira zinthu akulimbikitsidwa kuti akambirane ndi akatswiri opanga zinthu kuti atsimikizire kuti asankha bwino ntchito yawo yotsatira. Akatswiri a Kachi amadziwa bwino mbali zonse za njira zopangira zinthu, kuyambira pakupanga zinthu ndi kupanga zinthu mpaka kupanga zinthu zambiri. Gulu lathu lingakuthandizeni kusankha njira yabwino kwambiri yopangira zinthu zanu zopangidwa ndi makina a CNC ndikuonetsetsa kuti mukupita kumsika ndi chinthu cholimba komanso chapamwamba kwambiri. Ngati pakufunika kutero, chonde titumizireni uthenga.
Nthawi yotumizira: Novembala-30-2023
