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考虑单扫描轨迹表面形貌和轨迹宽度的铁硅合金激光粉末床熔融工艺参数优化

Process Parameter Optimization for Laser Powder Bed Fusion of Fe-Si Alloy Considering Surface Morphology and Track Width of Single Scan Track.

作者信息

Jang Ho Sung, Kim Su Heon, Park Geon-Woo, Jeon Jong Bae, Kim Donghwi, Kim Dohyung, Kim Wang Ryeol, Choi Yoon Suk, Shin Sunmi

机构信息

Advanced Forming Process R&D Group, Korea Institute of Industrial Technology, Ulsan 44776, Republic of Korea.

School of Materials Science and Engineering, Pusan National University, Busan 46241, Republic of Korea.

出版信息

Materials (Basel). 2023 Dec 13;16(24):7626. doi: 10.3390/ma16247626.

DOI:10.3390/ma16247626
PMID:38138769
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10744533/
Abstract

A laser power bed fusion (L-PBF) manufacturing process was optimized by analyzing the surface morphology and track width of single scan tracks (SSTs) on Fe-3.4wt.%Si. An SST was evaluated under process conditions of laser power , scan speed , and energy density = /. The SST surface shape was mainly affected by ; desirable thin and regular tracks were obtained at = 0.3 and 0.4 J/mm. An L-PBF process window was proposed considering the optimal of SST, and the appropriate range of for the alloy was identified to be 0.24 J/mm to 0.49 J/mm. showed a strong relationship with and , and an analytic model was suggested. To verify the process window derived from the appropriate of SST, cubic samples were manufactured with the estimated optimal process conditions. Most samples produced had a high density with a porosity of <1%, and the process window derived from SST data had high reliability. This study presents a comprehensive approach to enhancing additive manufacturing for Fe-3.4Si alloy, offering valuable insights for achieving high-quality samples without the need for time-intensive procedures.

摘要

通过分析铁-3.4wt.%硅上单次扫描轨迹（SST）的表面形态和轨迹宽度，对激光粉末床熔融（L-PBF）制造工艺进行了优化。在激光功率、扫描速度和能量密度 = / 的工艺条件下对SST进行了评估。SST的表面形状主要受 影响；在 = 0.3和0.4 J/mm时可获得理想的细且规则的轨迹。考虑SST的最佳 ，提出了一个L-PBF工艺窗口，并确定该合金 的合适范围为0.24 J/mm至0.49 J/mm。 与 和 显示出很强的关系，并提出了一个分析模型。为了验证从SST的合适 得出的工艺窗口，使用估计的最佳工艺条件制造了立方样品。大多数生产的样品具有高密度，孔隙率<1%，并且从SST数据得出的工艺窗口具有很高的可靠性。本研究提出了一种全面的方法来增强铁-3.4硅合金的增材制造，为无需耗时程序即可获得高质量样品提供了有价值的见解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/84da05966ab7/materials-16-07626-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/deb3eca44d7e/materials-16-07626-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/cb439c8639e1/materials-16-07626-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/fa8c3bdab357/materials-16-07626-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/07164b576168/materials-16-07626-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/447f909bfbba/materials-16-07626-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/a7fe8f963113/materials-16-07626-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/4c15a51dbb7c/materials-16-07626-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/2ab7719e295a/materials-16-07626-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/e7adbc69fc99/materials-16-07626-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/84da05966ab7/materials-16-07626-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/deb3eca44d7e/materials-16-07626-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/cb439c8639e1/materials-16-07626-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/fa8c3bdab357/materials-16-07626-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/07164b576168/materials-16-07626-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/447f909bfbba/materials-16-07626-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/a7fe8f963113/materials-16-07626-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/4c15a51dbb7c/materials-16-07626-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/2ab7719e295a/materials-16-07626-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/e7adbc69fc99/materials-16-07626-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e854/10744533/84da05966ab7/materials-16-07626-g010.jpg

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