In the powder bed fusion (PBF) process, a 3D shape is formed by the continuous stacking of very fine powder layers using computer-aided design (CAD) modeling data, following which laser irradiation can be used to fuse the layers forming the desired product. In this method, the main process parameters for manufacturing the desired 3D products are laser power, laser speed, powder form, powder size, laminated thickness, and laser diameter. Stainless steel (STS) 316L exhibits excellent strength at high temperatures, and is also corrosion resistant. Due to this, it is widely used in various additive manufacturing processes, and in the production of corrosion-resistant components with complicated shapes. In this study, rectangular specimens have been manufactured using STS 316L powder via the PBF process. Further, the effect of heat treatment at 800 °C on the microstructure and hardness has been investigated.

Abstract
1. 서 론
2. 실험방법
3. 실험 결과 및 고찰
4. Conclusion
References

• 송승윤(울산대학교 첨단소재공학부) | S. Y. Song (School of Materials Science and Engineering University of Ulsan, 12, Technosaneop-ro 55beon-gil Nam-gu, Republic of Korea)
• 이동완(울산대학교 첨단소재공학부) | D. W. Lee (School of Materials Science and Engineering University of Ulsan, 12, Technosaneop-ro 55beon-gil Nam-gu, Republic of Korea)
• 딘 반 꽁(울산대학교 첨단소재공학부) | D. V. Cong (School of Materials Science and Engineering University of Ulsan, 12, Technosaneop-ro 55beon-gil Nam-gu, Republic of Korea)
• 김진우(울산대학교 첨단소재공학부) | J. W. Kim (School of Materials Science and Engineering University of Ulsan, 12, Technosaneop-ro 55beon-gil Nam-gu, Republic of Korea)
• 이성모(울산대학교 첨단소재공학부) | S. M. Lee (School of Materials Science and Engineering University of Ulsan, 12, Technosaneop-ro 55beon-gil Nam-gu, Republic of Korea)
• 주승환(울산대학교 첨단소재공학부) | S. H. Joo (School of Materials Science and Engineering University of Ulsan, 12, Technosaneop-ro 55beon-gil Nam-gu, Republic of Korea)
• 김진천(울산대학교 첨단소재공학부) | J. C. Kim