Investigation of tribological properties of amorphous thermoplastic samples with different filling densities produced by an additive manufacturing method

Abstract

ASA (Acrylonitrile Styrene Acrylate) filament is widely used in outdoor applications thanks to its superior properties. It is exposed to wear due to the environments in which it is used. In this study, the tribological properties of the samples produced at different infill densities (30%, 60%, and 90%) were investigated. Samples were produced using the fused filament fabrication method prior to experiments. Friction tests were carried out on a pin-on disc test device. The friction coefficient, wear rates, hardness, and diameter values of the samples were measured. According to the results obtained, it was understood that there was little change in the tribological properties of the samples according to the infill densities. In addition, 90% infill density samples present higher hardness values and lower wear rates compared to other samples. The study also shows that the fused filament fabrication method is a suitable technique to produce samples from the strong ASA polymer.

Keywords

• Acrylonitrile butadiene styrene
• Wear rate
• Hardness
• Pin-on disc
• Additive Manufacturing

Eklemeli imalat yöntemiyle üretilen farklı dolgu yoğunluklarına sahip amorf termoplastik numunelerin tribolojik özelliklerinin incelenmesi

Abstract

ASA (Akrilonitril Stiren Akrilat) filament üstün özellikleri sayesinde dış mekan uygulamalarında yaygın olarak kullanılmaktadır. Kullanıldığı ortamlardan dolayı aşınmaya maruz kalmaktadır. Bu çalışmada, farklı dolgu yoğunluklarında (%30, %60 ve %90) üretilen numunelerin tribolojik özellikleri araştırılmıştır. Deneylerden önce kaynaşmış filament üretim yöntemi kullanılarak numuneler üretilmiştir. Sürtünme testleri, pin-on disk test cihazında gerçekleştirilmiştir. Numunelerin sürtünme katsayısı, aşınma oranları, sertlik ve çap değerleri ölçülmüştür. Elde edilen sonuçlara göre, dolgu yoğunluklarına bağlı olarak numunelerin tribolojik özelliklerinde çok az değişiklik olduğu anlaşılmıştır. Ayrıca, %90 dolgu yoğunluklu numuneler, diğer numunelere kıyasla daha yüksek sertlik değerleri ve daha düşük aşınma oranları göstermektedir. Çalışma ayrıca, kaynaşmış filament üretim yönteminin, güçlü ASA polimerinden numune üretmek için uygun bir teknik olduğunu göstermektedir.

Keywords

• Akrilonitril bütadien stiren
• Aşınma oranı
• Sertlik
• Pin-on disk
• Eklemeli İmalat

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