EKLEMELİ İMALAT PROSESİ İLE FONKSİYONEL DERECELİ MALZEME ÜRETİLEBİLMESİ İÇİN ELEKTRONİK KONTROLLÜ İKİ BİLEŞENLİ SÜREKLİ TOZ BESLEYİCİ GELİŞTİRİLMESİ

Öz

Yönlendirilmiş Enerji Biriktirimi (DED) yöntemleri, parçaların farklı bölümlerinde farklı kompozisyonlara sahip fonksiyonel dereceli malzemeler üretilmesini sağlar. Bunun için, işlem alanına birden fazla bileşenin beslenmesini sağlayan ve bu besleyicinin bileşenler arasında entegre bir şekilde eşzamanlı çalışmasını mümkün kılan bir toz besleyiciye ihtiyaç vardır. Bu çalışmada, iki bileşenli toz besleyici tasarımı ve üretimi gerçekleştirilmiştir. Elektronik olarak kontrol edilen bu toz besleyici, iki farklı toz malzemesini aynı anda, farklı akış hızlarında besleyebilir. Toz besleyicinin performansı, Ti6Al4V, Inconel 625 ve Zirkonyum toz malzemeleriyle test edilmiştir. Kalibrasyon sonrasında, istenen besleme miktarına ulaşılmak istendiğinde elde edilen maksimum farklar, Ti6Al4V malzemesi için %12,3, Inconel 625 malzemesi için %18,4 ve Zirkonyum malzemesi için %28,8 olarak bulunmuştur.

Anahtar Kelimeler

• Yönlendirilmiş Enerji Biriktirimi
• Çift komponentli toz besleyici tasarımı
• Fonksiyonel Derecelendirilmiş malzeme

Development Of Electronically Controlled Dual-Component Continuous Powder Feeder To Build Functional Graded Materials With Additive Manufacturing Process

Abstract

Directed Energy Deposition methods allow parts to be produced in functional grades with different compositions across distinct regions. For this, there is a need for a powder feeder that allows multiple components to be fed into the process area simultaneously and in an integrated manner. In this study, a dual-component powder feeder was designed and manufactured. This electronically controlled powder feeder can feed two different powder materials at different flow rates at the same time. The performance of the powder feeder was tested with Ti6Al4V (flow rates of 5, 10, and 15 g/min), Zirconium (13, 20, and 30 g/min), and Inconel 625 (20, 50, and 75 g/min) powder materials. Following the calibration process, the minimum deviations were observed as 2.9% for Ti6Al4V at 15 g/min, 11.5% for Zirconium at 30 g/min, and 6.5% for Inconel 625 at 75 g/min. Conversely, the maximum deviations were recorded as 12.3% for Ti6Al4V at 10 g/min, 28.8% for Zirconium at 20 g/min, and 18.4% for Inconel 625 at 20 g/min. Overall, the lowest deviations occurred at the higher end of the examined flow rate range.

Keywords

• Direct Energy Deposition
• Dual Component Powder Feeder Design
• Functionally Graded Material

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