南京工业大学学报（自然科学版）2026，Vol.48Issue(2)：156-167,12.DOI:10.3969/j.issn.1671-7627.2026.02.002
微尺度激光粉末床熔融技术缺陷抑制与后处理研究进展
Research progress on defect suppression and post-processing in micro-scale laser powder bed fusion
孟圆 1牛军 2张志刚 2王祥龙 1靳聚鑫 1李成杰 1吴进军 3范斌 1葛学元 1石华 4马同玲2
作者信息
- 1. 中机新材料研究院(郑州)有限公司,河南郑州 450001||北京机科国创轻量化科学研究院有限公司,北京 101400||先进成形技术与装备全国重点实验室 中国机械科学研究总院集团有限公司,北京 100044
- 2. 北京动力机械研究所,北京 100074
- 3. 机科发展科技股份有限公司,北京 100044
- 4. 北京机科国创轻量化科学研究院有限公司,北京 101400||先进成形技术与装备全国重点实验室 中国机械科学研究总院集团有限公司,北京 100044
- 折叠
摘要
Abstract
Micro-scale laser powder bed fusion(μ-LPBF)demonstrates significant advantages in manufacturing micro-parts with high precision,superior surface quality,and refined microstructures.It overcomes the accuracy limitations of conventional laser powder bed fusion(LPBF)in fabricating micro-scale parts,enhancing resolution,surface quality,and microstructure refinement.Despite these benefits,μ-LPBF still faces challenges in defect suppression and post-processing.This study reviews the formation mechanisms behind common defects,including uneven powder spreading,porosity,lack of fusion(LOF),and compositional segregation.Furthermore,it evaluates the effectiveness of various post-processing techniques,such as hybrid additive-subtractive manufacturing,laser polishing,and electrochemical polishing,in enhancing part quality.It examines application cases in biomedical,aerospace,and precision machinery,highlighting key issues and future directions needed for advancing μ-LPBF in high-precision manufacturing.关键词
微尺度激光粉末床熔融/精密制造/缺陷控制/后处理/工程应用Key words
micro-scale laser powder bed fusion/precision manufacturing/defect suppression/post-processing/engineering applications分类
机械制造引用本文复制引用
孟圆,牛军,张志刚,王祥龙,靳聚鑫,李成杰,吴进军,范斌,葛学元,石华,马同玲..微尺度激光粉末床熔融技术缺陷抑制与后处理研究进展[J].南京工业大学学报（自然科学版）,2026,48(2):156-167,12.
