{"id":12112,"date":"2023-04-10T12:45:23","date_gmt":"2023-04-10T09:45:23","guid":{"rendered":"https:\/\/bestessayhomework.com\/tr\/?p=12112"},"modified":"2023-04-10T12:45:23","modified_gmt":"2023-04-10T09:45:23","slug":"polimerizasyon-basim-teknolojileri-basim-teknolojileri-odevleri-basim-teknolojileri-odev-ucretleri-basim-teknolojileri-bolumu","status":"publish","type":"post","link":"https:\/\/bestessayhomework.com\/tr\/polimerizasyon-basim-teknolojileri-basim-teknolojileri-odevleri-basim-teknolojileri-odev-ucretleri-basim-teknolojileri-bolumu\/","title":{"rendered":"Polimerizasyon \u2013 Bas\u0131m Teknolojileri \u2013 Bas\u0131m Teknolojileri \u00d6devleri \u2013 Bas\u0131m Teknolojileri \u00d6dev \u00dccretleri \u2013 Bas\u0131m Teknolojileri B\u00f6l\u00fcm\u00fc"},"content":{"rendered":"

Polimerizasyon<\/span><\/strong><\/h3>\n

Tekne Polimerizasyon teknolojileri, bir \u0131\u015f\u0131k kayna\u011f\u0131 taraf\u0131ndan sertle\u015ftirilen bir teknede bir foto-polimer re\u00e7ine kullan\u0131r. Vat Polimerizasyonunun en yayg\u0131n bi\u00e7imleri SLA (Stereolitografi) ve DLP’dir (Do\u011frudan I\u015f\u0131k \u0130\u015fleme).<\/span><\/p>\n

Her iki Vat Polimerizasyon teknolojisi de par\u00e7a \u00fcretmek i\u00e7in benzer mekanizmalar kulland\u0131\u011f\u0131ndan, basitlik a\u00e7\u0131s\u0131ndan, son i\u015fleme veya faydalar ve s\u0131n\u0131rlamalar gibi konular\u0131 tart\u0131\u015f\u0131rken e\u015fit olarak ele al\u0131nacakt\u0131r.<\/span><\/p>\n

Stereolitografi (SLA)<\/span><\/strong><\/p>\n

SLA, orijinal 3D bask\u0131 teknolojisi olmas\u0131yla \u00fcnl\u00fcd\u00fcr. Stereolitografi terimi, 1986’da teknolojinin patentini alan ve onu ticarile\u015ftirmek i\u00e7in 3D Systems \u015firketini kuran Charles W. Hull taraf\u0131ndan icat edildi.<\/span><\/p>\n

S\u00fcre\u00e7, bir lazer \u0131\u015f\u0131n\u0131n\u0131 bir kazana, bask\u0131 alan\u0131na h\u0131zla y\u00f6nlendirmek i\u00e7in galvanometreler veya galvolar olarak bilinen aynalar\u0131 (biri x ekseninde ve di\u011feri y ekseninde) kullan\u0131r, re\u00e7ineyi sertle\u015ftirir ve kat\u0131la\u015ft\u0131r\u0131r. Bu s\u00fcre\u00e7, tasar\u0131m\u0131, katman katman, galvolara bir dizi koordinat olarak verilen bir dizi nokta ve \u00e7izgiye ay\u0131r\u0131r. \u00c7o\u011fu SLA makinesi, par\u00e7alar\u0131 iyile\u015ftirmek i\u00e7in kat\u0131 hal lazeri kullan\u0131r.<\/span><\/p>\n

Do\u011frudan I\u015f\u0131k \u0130\u015fleme (DLP)<\/span><\/strong><\/p>\n

DLP, SLA ile kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda neredeyse ayn\u0131 par\u00e7a \u00fcretme y\u00f6ntemini izler. Temel fark, DLP’nin her katman\u0131n tek bir g\u00f6r\u00fcnt\u00fcs\u00fcn\u00fc ayn\u0131 anda (veya daha b\u00fcy\u00fck par\u00e7alar i\u00e7in birden \u00e7ok fla\u015f) fla\u015flamak i\u00e7in bir dijital \u0131\u015f\u0131k projekt\u00f6r ekran\u0131 kullanmas\u0131d\u0131r.<\/span><\/p>\n

Projekt\u00f6r dijital bir ekran oldu\u011fu i\u00e7in, her katman\u0131n g\u00f6r\u00fcnt\u00fcs\u00fc kare piksellerden olu\u015fur ve sonu\u00e7ta voksel ad\u0131 verilen k\u00fc\u00e7\u00fck dikd\u00f6rtgen tu\u011flalardan olu\u015fan bir katman olu\u015fur.<\/span><\/p>\n

DLP, enine kesit alan\u0131n\u0131 bir lazer noktas\u0131yla izlemek yerine t\u00fcm katman\u0131 ayn\u0131 anda g\u00f6sterdi\u011finden, SLA’ya k\u0131yasla daha h\u0131zl\u0131 bask\u0131 s\u00fcreleri elde edebilir. <\/span><\/p>\n

I\u015f\u0131k, bir Dijital Mikroayna Cihaz\u0131 (DMD) taraf\u0131ndan yap\u0131 y\u00fczeyine y\u00f6nlendirilen \u0131\u015f\u0131k yayan diyot (LED) ekranlar veya bir UV \u0131\u015f\u0131k kayna\u011f\u0131 (lamba) kullan\u0131larak re\u00e7ine \u00fczerine yans\u0131t\u0131l\u0131r.<\/span>\u00a0DMD, \u0131\u015f\u0131\u011f\u0131n nereye yans\u0131t\u0131laca\u011f\u0131n\u0131 kontrol eden ve yap\u0131 y\u00fczeyinde \u0131\u015f\u0131k modelini olu\u015fturan bir dizi mikro aynad\u0131r.<\/span><\/p>\n

SLA ve DLP aras\u0131ndaki temel fark, her teknolojinin re\u00e7ineyi sertle\u015ftirmek i\u00e7in kulland\u0131\u011f\u0131 \u0131\u015f\u0131k kayna\u011f\u0131d\u0131r. SLA yaz\u0131c\u0131lar, DLP yaz\u0131c\u0131lar\u0131n kulland\u0131\u011f\u0131 voksel yakla\u015f\u0131m\u0131na k\u0131yasla bir nokta lazeri kullan\u0131r. Her y\u00f6ntemin \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011f\u00fc a\u00e7\u0131s\u0131ndan, standart DMD’ler 1024 x 780 \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011fe sahipken, standart SLA yaz\u0131c\u0131lar 130 – 150 mikron spot boyutuna sahip bir lazer kullan\u0131r (bu, makinenin boyutuna g\u00f6re de\u011fi\u015febilir).<\/span><\/p>\n

Bir nokta lazeri kullanan SLA’n\u0131n dezavantaj\u0131, bir par\u00e7an\u0131n enine kesitini izlemenin, enine kesiti tek bir fla\u015fta g\u00f6sterebilen (par\u00e7a boyutuna ba\u011fl\u0131 olarak) DLP yaz\u0131c\u0131lara k\u0131yasla daha uzun s\u00fcrmesidir. Bu, ayn\u0131 par\u00e7ay\u0131 yazd\u0131r\u0131rken DLP’yi SLA’dan daha h\u0131zl\u0131 hale getirir.<\/span><\/p>\n

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Polimerizasyon<\/a> Nedir<\/span>
\nCanl\u0131 polimerizasyon<\/span>
\nPolimerizasyon derecesi nedir<\/span>
\nPolimerizasyon \u00e7e\u015fitleri<\/span>
\n\u00c7\u00f6zelti polimerizasyonu<\/span>
\nKondenzasyon polimerizasyonu<\/span>
\nEm\u00fclsiyon polimerizasyonu pdf<\/span>
\nS\u00fcspansiyon polimerizasyonu<\/span><\/p>\n

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Yaz\u0131c\u0131 Parametreleri<\/span><\/strong><\/h3>\n

FFF’den farkl\u0131 olarak, Vat Polymerization makinelerinde \u00e7o\u011fu yaz\u0131c\u0131 parametresi sabittir ve de\u011fi\u015ftirilemez. Tipik olarak, yaln\u0131zca operat\u00f6r girdileri par\u00e7a y\u00f6n\u00fc\/destek konumu, katman y\u00fcksekli\u011fi ve malzemedir ve bunlar\u0131n t\u00fcm\u00fc dilimleme a\u015famas\u0131nda belirtilir. \u00c7o\u011fu yaz\u0131c\u0131, kullan\u0131lan malzeme t\u00fcr\u00fcne g\u00f6re ayarlar\u0131 otomatik olarak ayarlar.<\/span><\/p>\n

Katman y\u00fcksekli\u011fi ve \u0131\u015f\u0131k kayna\u011f\u0131 \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011f\u00fc (nokta boyutu veya projekt\u00f6r \u00e7\u00f6z\u00fcn\u00fcrl\u00fc\u011f\u00fc), bir par\u00e7an\u0131n y\u00fczey kalitesini ve do\u011frulu\u011funu belirler. Vat Polimerizasyon yaz\u0131c\u0131lar\u0131n\u0131n \u00e7o\u011fu, 25 – 100 mikron katman y\u00fcksekli\u011finde par\u00e7alar \u00fcretir.<\/span><\/p>\n

\u00c7ok k\u00fc\u00e7\u00fck, ince detayl\u0131 bask\u0131lar i\u00e7in DLP projekt\u00f6r lenslerini daha dar bir \u0131\u015f\u0131n kullanmak \u00fczere de\u011fi\u015ftirmek m\u00fcmk\u00fcn olabilir. Bu, \u0131\u015f\u0131n\u0131n daha k\u00fc\u00e7\u00fck katmanlar\u0131 daha h\u0131zl\u0131 ve daha y\u00fcksek ayr\u0131nt\u0131 d\u00fczeyinde yazd\u0131rmas\u0131n\u0131 sa\u011flar.<\/span><\/p>\n

Kazan Polimerizasyon makineleri 2 farkl\u0131 y\u00f6nde par\u00e7a \u00fcretebilmektedir (\u015eekil 3.4’te g\u00f6sterildi\u011fi gibi a\u015fa\u011f\u0131dan yukar\u0131ya veya yukar\u0131dan a\u015fa\u011f\u0131ya). SLA ve DLP yaz\u0131c\u0131lar, \u00fcreticiye ba\u011fl\u0131 olarak tasar\u0131ma sahip her iki yap\u0131land\u0131rmada gelir.<\/span><\/p>\n

Alt\u00fcst<\/span><\/strong><\/p>\n

A\u015fa\u011f\u0131dan yukar\u0131ya yaz\u0131c\u0131larda \u0131\u015f\u0131k kayna\u011f\u0131 \u015feffaf bir tabana sahip bir re\u00e7ine teknesinin alt\u0131na yerle\u015ftirilmi\u015ftir. Ba\u015flang\u0131\u00e7ta in\u015fa platformu, teknenin taban\u0131 ile platform aras\u0131nda yaln\u0131zca bir katman kal\u0131nl\u0131\u011f\u0131 olacak \u015fekilde konumland\u0131r\u0131l\u0131r. I\u015f\u0131k kayna\u011f\u0131 (lazer, UV lambas\u0131 veya LED ekran) ince re\u00e7ine tabakas\u0131n\u0131 sertle\u015ftirerek sertle\u015ftirir. \u00d6zel bir kaplama, re\u00e7inenin teknenin taban\u0131na yap\u0131\u015fmas\u0131n\u0131 engeller.<\/span><\/p>\n

\u0130lk katman k\u00fcrlenmi\u015f ve yap\u0131 platformuna yap\u0131\u015ft\u0131r\u0131lm\u0131\u015f durumdayken, yaz\u0131c\u0131, sertle\u015ftirilmi\u015f birinci katman\u0131 teknenin taban\u0131ndan ay\u0131ran ve tek katman kal\u0131nl\u0131\u011f\u0131n\u0131 yukar\u0131 do\u011fru hareket ettiren bir ay\u0131rma ad\u0131m\u0131 ger\u00e7ekle\u015ftirir. Makineye ba\u011fl\u0131 olarak, bu a\u015fama kazan\u0131n soyulmas\u0131n\u0131, kayd\u0131r\u0131lmas\u0131n\u0131, d\u00f6nd\u00fcr\u00fclmesini veya sallanmas\u0131n\u0131 i\u00e7erebilir. Ay\u0131rma a\u015famas\u0131ndan sonra, k\u00fcrlenmemi\u015f yeni bir re\u00e7ine tabakas\u0131 bo\u015flu\u011fu doldurur.<\/span><\/p>\n

Baz\u0131 a\u015fa\u011f\u0131dan yukar\u0131ya makineler, homojen bir kaplama sa\u011flamak i\u00e7in teknenin taban\u0131 boyunca bir re\u00e7ine tabakas\u0131 yaymak, re\u00e7ineyi kar\u0131\u015ft\u0131rmak ve kal\u0131nt\u0131lar\u0131 (k\u00fcrlenmi\u015f re\u00e7ine lekeleri) \u00e7\u0131karmak i\u00e7in bir silici kullan\u0131r. \u0130\u015flem daha sonra in\u015fa platformu bir katman kal\u0131nl\u0131\u011f\u0131 yukar\u0131 hareket ederek ve par\u00e7a tamamlanana kadar yeni sertle\u015fen katman\u0131 teknenin taban\u0131ndan ay\u0131rarak tekrarlan\u0131r.<\/span><\/p>\n

A\u015fa\u011f\u0131dan yukar\u0131ya do\u011fru bir bask\u0131n\u0131n ba\u015far\u0131l\u0131 olmas\u0131 i\u00e7in, ay\u0131rma a\u015famas\u0131nda yeni yazd\u0131r\u0131lan katmanlar \u00fczerindeki kuvvetleri azaltmak \u00e7ok \u00f6nemlidir.<\/span>\u00a0Ay\u0131rma a\u015famas\u0131, potansiyel olarak \u00e7ok ince bir kenar boyunca y\u00fcksek gerilimli alanlar olu\u015fturur; bu, par\u00e7a yap\u0131 plakas\u0131 yerine teknenin taban\u0131na yap\u0131\u015fabildi\u011finde par\u00e7an\u0131n bozulmas\u0131na ve yamulmas\u0131na yol a\u00e7abilir.<\/span><\/p>\n

A\u015fa\u011f\u0131dan yukar\u0131ya yaz\u0131c\u0131larda genellikle ay\u0131rma a\u015famas\u0131na yard\u0131mc\u0131 olmak i\u00e7in teknenin taban\u0131na uygulanan yap\u0131\u015fmaz bir kaplama (genellikle PDMS \/ FEP) bulunur, ancak bunun yeterli performans g\u00f6stermesini sa\u011flamak i\u00e7in d\u00fczenli olarak de\u011fi\u015ftirilmesi gerekir. Silecek ayr\u0131ca, yap\u0131\u015fmazl\u0131k performans\u0131n\u0131 iyile\u015ftirmeye yard\u0131mc\u0131 olarak PDMS \/ FEP’in oksijenlenmesine yard\u0131mc\u0131 olur.<\/span><\/p>\n

Yukar\u0131dan a\u015fa\u011f\u0131ya yaz\u0131c\u0131lar, \u0131\u015f\u0131k kayna\u011f\u0131n\u0131 yap\u0131 platformunun \u00fczerine konumland\u0131r\u0131r. \u0130n\u015fa platformu, onu kaplayan ince bir re\u00e7ine tabakas\u0131yla re\u00e7ine teknesinin en tepesinden ba\u015flar. I\u015f\u0131k kayna\u011f\u0131 ince re\u00e7ine tabakas\u0131n\u0131 sertle\u015ftirir. \u0130lk katman sertle\u015ftikten sonra, yap\u0131 platformu 1 katman kal\u0131nl\u0131\u011f\u0131 a\u015fa\u011f\u0131 hareket eder, re\u00e7ine daha \u00f6nce sertle\u015fen katman\u0131 yeniden kaplar ve i\u015flem tekrarlan\u0131r.<\/span><\/p>\n

Yap\u0131 ilerledik\u00e7e, yap\u0131 platformu re\u00e7ine teknesine do\u011fru al\u00e7almaya devam eder. Yap\u0131 tamamland\u0131\u011f\u0131nda, par\u00e7a tamamen re\u00e7ineye dald\u0131r\u0131lacakt\u0131r. Par\u00e7a daha sonra re\u00e7ineden kald\u0131r\u0131l\u0131r ve yap\u0131m platformundan \u00e7\u0131kar\u0131l\u0131r.<\/span><\/p>\n

A\u015fa\u011f\u0131dan yukar\u0131ya makinelerde oldu\u011fu gibi, ilk katman genellikle bir yap\u0131daki en kritik katmand\u0131r. Bu katman\u0131n derleme platformuna ba\u015far\u0131l\u0131 bir \u015fekilde yap\u0131\u015fmas\u0131 \u00e7ok \u00f6nemlidir.<\/span><\/p>\n

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