Ti-6Al-4V alloy is widely utilized in aerospace and medical sectors due to its high specific strength, corrosion resistance, and biocompatibility. However, its low machinability makes it difficult to manufacture complex-shaped products. Advancements in additive manufacturing have focused on producing high-performance, complex components using the laser powder bed fusion (LPBF) process, which is a specialized technique for customized geometries. The LPBF process exposes materials to extreme thermal conditions and rapid cooling rates, leading to residual stresses within the parts. These stresses are intensified by variations in the thermal history across regions of the component. These variations result in differences in microstructure and mechanical properties, causing distortion. Although support structure design has been researched to minimize residual stress, few studies have conducted quantitative analyses of stress variations due to different support designs. This study investigated changes in the residual stress and mechanical properties of Ti-6Al-4V alloy fabricated using LPBF, focusing on support structure design.

1. Introduction
2. Experimental
    2.1. Ti-6Al-4V 분말
    2.2. LPBF 기반 조형체 제조
    2.3. 잔류응력 측정
    2.4. 열전도도 측정
3. Results and Discussion
    3.1. 육안 검사
4. Conclusion
Funding
Conflict of Interest
Data Availability Statement
Author Information and Contribution
Acknowledgments
References

• 유지훈(한국재료연구원 나노재료연구본부) | Ji-Hun Yu (Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon 51508, Republic of Korea) Corresponding author
• 이승연(한국재료연구원 나노재료연구본부, 국립부경대학교 금속공학과) | Seungyeon Lee (Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon 51508, Republic of Korea, Department of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea)
• 박하음(한국재료연구원 나노재료연구본부, 고려대학교 미래융합소재학과) | Haeum Park (Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon 51508, Republic of Korea, Department of Advanced Future Convergence Materials, Korea University, Seoul 02841, Republic of Korea)
• 박정민(한국재료연구원 나노재료연구본부, 고려대학교 미래융합소재학과, 한국재료연구원 3D프린팅공정연구센터) | Jeong Min Park (Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon 51508, Republic of Korea, Department of Advanced Future Convergence Materials, Korea University, Seoul 02841, Republic of Korea, Center for 3D Printing Process, Korea Institute of Materials Science (KIMS), Changwon 51508, Republic of Korea) Corresponding author
• 배재웅(국립부경대학교 금속공학과) | Jae Wung Bae (Department of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea) Corresponding author
• 백민재(한국재료연구원 항공우주재료연구센터) | Min Jae Baek (Center for Aerospace Materials, Korea Institute of Materials Science (KIMS), Changwon 51508, Republic of Korea)
• 이동준(한국재료연구원 항공우주재료연구센터) | Dong Jun Lee (Center for Aerospace Materials, Korea Institute of Materials Science (KIMS), Changwon 51508, Republic of Korea)