Metal additive manufacturing (AM) has transformed conventional manufacturing processes by offering unprecedented opportunities for design innovation, reduced lead times, and cost-effective production. Aluminum alloy, a material used in metal 3D printing, is a representative lightweight structural material known for its high specific strength and corrosion resistance. Consequently, there is an increasing demand for 3D printed aluminum alloy components across industries, including aerospace, transportation, and consumer goods. To meet this demand, research on alloys and process conditions that satisfy the specific requirement of each industry is necessary. However, 3D printing processes exhibit different behaviors of alloy elements owing to rapid thermal dynamics, making it challenging to predict the microstructure and properties. In this study, we gathered published data on the relationship between alloy composition, processing conditions, and properties. Furthermore, we conducted a sensitivity analysis on the effects of the process variables on the density and hardness of aluminum alloys used in additive manufacturing.

서 론
2. 실험방법
    2.1 데이터 수집 및 가공
    2.2 피어슨 상관계수 분석
3. 실험결과 및 고찰
4. 결 론
감사의 글

• 박수원(국민대학교 신소재공학부) | Suwon Park (School of Materials Science and Engineering, Kookmin University, Seoul 02707, Republic of Korea)
• 여지윤(국민대학교 신소재공학부) | Jiyoon Yeo (School of Materials Science and Engineering, Kookmin University, Seoul 02707, Republic of Korea)
• 한송윤(국민대학교 신소재공학부) | Songyun Han (School of Materials Science and Engineering, Kookmin University, Seoul 02707, Republic of Korea)
• 최현주(국민대학교 신소재공학부) | Hyunjoo Choi (School of Materials Science and Engineering, Kookmin University, Seoul 02707, Republic of Korea) Corresponding Author