Farklı Doldurma Şekillerinin Üç Boyutlu Yazıcılarda Üretilen Ürünlerin Mukavemetine Etkisi

Bu çalışmada, farklı doldurma şekillerinin Ergiyik Depolayarak Modelleme (Fused Deposition Modelling - FDM) yöntemi ile imal edilen ürünlerin mukavemetine etkisi deneysel olarak incelenmiştir. Çalışmada filament malzeme olarak PET-G (Polyethylene Terephthalate Glycol) kullanılmış ve farklı doldurma şekillerinde (Rectilinear, Grid, Triangular, Wiggle, Fast honeycomb, Full honeycomb), doluluk oranı (%30), işleme hızı (4200 mm/dak), nozul çapı (0,40 mm), nozul sıcaklığı (230 ºC), katman kalınlığı (0,20 mm) olmak üzere ISO 527-2 standardına uygun ürünler imal edilmiştir. Bu numunelerin çekme mukavemetlerini incelemek için çekme testleri gerçekleştirilmiş ve testlerden elde edilen sonuçlar karşılaştırılmıştır. Sonuçlar yazdırma şekillerinin ürün mukavemeti üzerinde önemli etkisi olduğunu göstermiştir. Rectilinear doldurma şeklinde imal edilen ürünlerde elde edilen mukavemet değerleri diğer doldurma şekillerine göre yaklaşık % 15 daha yüksek çıkmıştır. Ayrıca, Full honeycomb doldurma şeklinin diğer doldurma şekillerine göre daha fazla uzama gösterdiği görülmüştür.

Anahtar Kelimeler:

FDM, Doldurma şekli, PET-G, Mukavemet

Effect of Filling Structures on Strength of Printed Products by 3D Printers

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