Investigation of Tensile Strength in 3D Printed PLA+ Samples: Influence of Raster Angle and Infill Density

Öz

In this study, the mechanical properties of PLA+ samples produced through Fused Deposition Modeling (FDM) 3D printing are investigated. The research focuses on the effects of two critical parameters on tensile strength in 3D printers. These are raster angle and infill density. Raster angles of 0°, 90° and ±45° were chosen. The infill density, which determines the internal material distribution, was set to 20%, 50% and 100%. As a result of the tensile test, the highest ultimate strength value of 44.52 MPa was obtained in the ±45°-100% combination. The highest modulus of elasticity value was obtained from 90°-100% combination with 1.55 GPa. These findings highlight the critical role of printing parameters in determining the mechanical performance of FDM printed PLA+ parts. The study provides information for optimizing print settings to achieve desired strength and stiffness properties in 3D printed components for engineering applications.

Anahtar Kelimeler

• 3D
• FDM
• Raster angle
• Infill density

3D Baskılı PLA+ Numunelerinin Çekme Dayanımının İncelenmesi: Yazdırma Açısı ve Dolgu Yoğunluğunun Etkisi

Öz

Bu çalışmada, Erimiş Biriktirme Modelleme (FDM) 3D baskı yoluyla üretilen PLA+ numunelerinin mekanik özellikleri incelenmiştir. Araştırma, 3D yazıcılarda iki kritik parametrenin gerilme mukavemeti üzerindeki etkilerine odaklanmaktadır. Bunlar tarama açısı ve dolgu yoğunluğudur. Raster açıları 0°, 90° ve ±45° olarak seçilmiştir. İç malzeme dağılımını belirleyen dolgu yoğunluğu %20, %50 ve %100 olarak ayarlanmıştır. Çekme testi sonucunda en yüksek nihai mukavemet değeri 44,52 MPa ile ±45°-%100 kombinasyonunda elde edilmiştir. En yüksek elastisite modülü değeri ise 1,55 GPa ile %90°-100 kombinasyonundan elde edilmiştir. Bu bulgular, FDM baskılı PLA+ parçaların mekanik performansının belirlenmesinde baskı parametrelerinin kritik rolünü vurgulamaktadır. Çalışma, mühendislik uygulamaları için 3D baskılı bileşenlerde istenen mukavemet ve rijitlik özelliklerini elde etmek için baskı ayarlarını optimize etmek için bilgi sağlar.

Anahtar Kelimeler

• 3B
• FDM
• Yazdırma açısı
• Dolgu yoğunluğu

Kaynakça

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