The enamel powders used traditionally in Korea are produced by a ball-milling process. Because of their irregular shapes, enamel powders exhibit poor flowability. Therefore, polygonal enamel powders are only used for handmade cloisonné crafts. In order to industrialize or automate the process of cloisonné crafts, it is essential to control the size and shape of the powder. In this study, the flowability of the enamel powders was improved using the spheroidization process, which employs the RF plasma treatment. In addition, a simple grid structure and logo were successfully produced using the additive manufacturing process (powder bed fusion), which utilizes spherical enamel powders. The additive manufacturing technology of spherical enamel powders is expected to be widely used in the field of cloisonné crafting in the future.

Abstract
1. 서 론
2. 실험방법
    2.1. 구형 유약 분말 제조
    2.2. 적층 제조 공정(powder bed fusion)
3. 실험결과 및 고찰
4. 결 론
References

• 김기봉(한국기계연구원 부설 재료연구소, 분말/세라믹연구본부) | Ki-Bong Kim (Powder & Ceramics Division, Korea Institute of Materials Science (KIMS))
• 양동열(한국기계연구원 부설 재료연구소, 분말/세라믹연구본부) | Dong-Yeol Yang (Powder & Ceramics Division, Korea Institute of Materials Science (KIMS)) Corresponding Author
• 김용진(한국기계연구원 부설 재료연구소, 분말/세라믹연구본부) | Yong-Jin Kim (Powder & Ceramics Division, Korea Institute of Materials Science (KIMS))
• 최중호(한국기계연구원 부설 재료연구소, 분말/세라믹연구본부) | Jungho Choe (Powder & Ceramics Division, Korea Institute of Materials Science (KIMS))
• 곽지나(한국기계연구원 부설 재료연구소, 분말/세라믹연구본부) | Ji-Na Kwak (Powder & Ceramics Division, Korea Institute of Materials Science (KIMS))
• 정우형(한국기계연구원 부설 재료연구소, 분말/세라믹연구본부) | Woo-Hyung Jung (Powder & Ceramics Division, Korea Institute of Materials Science (KIMS))