shafi_banner

3D bugu mai faɗaɗa guduro

Kashi na farko na binciken an mayar da hankali ne akan zabar monomer wanda zai yi aiki a matsayin tubalan ginin don resin polymer. Dole ne monomer ya zama mai warkewa UV, yana da ɗan gajeren lokacin magani, kuma yana nuna kyawawan kaddarorin inji masu dacewa da aikace-aikacen matsananciyar damuwa. Tawagar, bayan ta gwada ƴan takara uku, daga ƙarshe ta zauna akan 2-hydroxyethyl methacrylate (zamu kira shi kawai HEMA).

Da zarar an kulle monomer a ciki, masu binciken sun tashi don nemo mafi kyawun maida hankali na photoinitiator tare da wakilin busa mai dacewa don haɗa HEMA zuwa. An gwada nau'ikan masu daukar hoto guda biyu don shirye-shiryensu don yin magani a ƙarƙashin daidaitattun fitilun UV na 405nm waɗanda galibi ana samun su a yawancin tsarin SLA. An haɗa masu daukar hoto a cikin rabo na 1: 1 kuma an haɗe su a 5% ta nauyi don mafi kyawun sakamako. Wakilin busawa - wanda za a yi amfani da shi don sauƙaƙe faɗaɗa tsarin salula na HEMA, wanda ke haifar da 'kumfa' - ya ɗan ɗanɗana ganowa. Yawancin jami'an da aka gwada ba su iya narkewa ko da wuya a daidaita su, amma ƙungiyar a ƙarshe ta zauna a kan wani nau'in busa na al'ada wanda yawanci ana amfani da shi da polystyrene-kamar polymers.

An yi amfani da hadadden cakuda sinadaran don tsara resin photopolymer na ƙarshe kuma ƙungiyar ta fara aiki akan bugu na 3D kaɗan ƙirƙira CAD waɗanda ba su da yawa. An buga samfuran 3D akan Anycubic Photon a sikelin 1x kuma an yi zafi a 200°C har zuwa mintuna goma. Zafin ya lalata wakili mai busawa, yana kunna aikin kumfa na resin da fadada girman samfuran. Bayan kwatanta girman girman kai da bayan faɗaɗawa, masu binciken sun ƙididdige haɓakar haɓakar girma har zuwa 4000% (40x), suna tura samfuran bugu na 3D da suka wuce iyakokin ƙira na farantin ginin Photon. Masu binciken sun yi imanin za a iya amfani da wannan fasaha don aikace-aikace masu nauyi kamar aerofoils ko kayan aikin buoyancy saboda ƙarancin ƙarancin kayan da aka faɗaɗa.

图片7

Lokacin aikawa: Satumba-30-2024