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

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.