This study investigated the optimal process conditions and mechanical properties of Cu-10Sn alloys produced by the powder bed fusion (PBF) method. The optimal PBF conditions were explored by producing samples with various laser scanning speeds and laser power. It was found that under optimized conditions, samples with a density close to the theoretical density could be fabricated using PBF without any serious defects. The microstructure and mechanical properties of samples produced under optimized conditions were investigated and compared with a commercial alloy produced by the conventional method. The hardness, maximum tensile strength, and elongation of the samples were significantly higher than those of the commercially available cast alloy with the same chemical composition. Based on these results, it is expected to be possible to use the PBF technique to manufacture Cu-10Sn products with complex 3D shapes that could not be made using the conventional manufacturing method.

1. Introduction 
2. Experimental 
    2.1. PBF 공정에 사용된 분말 원소재 
    2.2. Powder Bed Fusion 
    2.3. 미세조직 및 기계적 특성 분석 
3. Results and Discussion 
    3.1. 레이저 적층조건에 따른 미세조직의 변화 
    3.2. 최적 성형밀도로 적층제조된 Cu-10Sn 합금의 미세조직 
    3.3. 기계적 특성 
4. Conclusion 
Conflict of Interest Declaration  
Author Information and Contribution  
Acknowledgement
References

• 김종규((주)대건테크) | Jonggyu Kim (Daegun Tech, Republic of Korea)
• 원정훈(부산대학교 재료공학부) | Junghoon Won (School of Materials Science and Engineering, Pusan National University, Republic of Korea)
• 이욱진(부산대학교 재료공학부) | Wookjin Lee (School of Materials Science and Engineering, Pusan National University, Republic of Korea) Corresponding author