Ultrasonik atomizasyon: toz üretiminde alternatif bir yol

Yıl 2023, , 81 - 91, 30.08.2023

Yağız Akyıldız , Serdar Sarı , Onur Furkan Kaya , Rıdvan Yamanoğlu

https://doi.org/10.52795/mateca.1290558

Öz

Metal tozlarının eklemeli imalatta kullanımı gün geçtikçe artmaktadır. Metal tozu, tüm bu proseslerin hammaddesi olup nihai ürünün fiziksel, kimyasal ve mekanik özelliklerinin yanı sıra boyut ve tolerans değerleri gibi özelliklerini belirlemektedir. Konvansiyonel atomizasyon prosesleri ile toz üretimi, seri üretime uygunluğu, yüksek kalitede metal tozu ve düşük maliyetli üretim imkanı ile dikkat çekmektedir. Ancak, partikül boyut dağılımı ve küreselliği, eklemeli imalat proseslerinde kullanılacak toz kalitesi ve son ürün maliyeti için belirleyici faktörlerdir. Atomizasyon prosesinde kullanılan başlangıç hammaddesi de üretilen tozun kalitesi ve fiyatını etkiler. Dolayısıyla, yüksek kalitede ve uygun maliyetli toz üretimi için atomizasyon proseslerinin parametreleri (ergimiş metalin sıcaklığı, atomizasyon atmosferi ve türü gibi) üretim öncesinde belirlenmelidir. Ultrasonik atomizasyon yöntemi, konvansiyonel yöntemlere göre daha düşük maliyetle yüksek kalitede toz üretilebilmekte ve özellikle eklemeli imalat alanında ihtiyaç duyulan partikül boyut dağılımı ve akışkanlığı karşılayabilmektedir. Bu çalışmada ultrasonik atomizasyon yönteminin çalışma mekanizmasının incelenmiş ve konvansiyonel atomizasyon teknikleri ile nihai ürün kalitesi açısından arada oluşan farklar karşılaştırılmıştır.

Anahtar Kelimeler

Toz Metalurjisi, Atomizasyon Teknikleri, Ultrasonik Atomizasyon, Eklemeli İmalat

Ultrasonic atomization: an alternative path to powder production

Öz

The use of metal powders in additive manufacturing is increasing day by day. Metal powder is the raw material for all these processes and determines the properties of the final product, such as its physical, chemical, and mechanical characteristics, as well as its dimensions and tolerance values. Metal powder production using conventional atomization processes is noteworthy due to its suitability for mass production, high-quality metal powder, and low-cost production. However, particle size distribution and sphericity are crucial factors for the quality of the powder used in additive manufacturing processes and the cost of the final product. The raw material used in the atomization process also affects the quality and price of the produced powder. Therefore, the parameters of the atomization processes, such as the melting temperature of the metal, the atomization ambient, and the type should be determined before production to achieve high-quality and cost-effective powder production. The ultrasonic atomization method can produce high-quality powder at a lower cost compared to conventional methods and can meet the particle size distribution and fluidity required in the additive manufacturing field. This study examines the ultrasonic atomization method's operating mechanism and compares the final product quality differences between conventional atomization techniques.

Anahtar Kelimeler

Powder Metallurgy, Atomization Techniques, Ultrasonic Atomization, Additive Manufacturing

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