强激光与粒子束2025，Vol.37Issue(7)：1-3,3.DOI:10.11884/HPLPB202537.250191
激光驱动X射线源实现金属激光增材制造原位表征
In-situ characterization of metal laser additive manufacturing using a laser-driven X-ray source
温家星 1魏来 2范全平 1向祥军 1李松 3王少义 1杨月 1魏见萌 3王浩 3郑吟龙 3沈显峰 2郭航 3钱佳毅 3朱佳诚 3张宗昕 3吴玉迟 1王文涛 3许毅 3黄姝珂 2赵宗清 1吴思辛 1朱涛 2曾高杰 3彭茂 1樊思劼 1叶翰晟 1巩强2
作者信息
- 1. 中国工程物理研究院激光聚变研究中心,四川 绵阳 621900
- 2. 中国工程物理研究院机械与制造工艺研究所,四川 绵阳 621900
- 3. 中国科学院上海光学精密机械研究所,上海 201800
- 折叠
摘要
Abstract
Pore defects in metal laser additive manufacturing(AM)typically originate and evolve within the melt pool,exhibiting microscopic and highly transient characteristics.High spatiotemporal resolution X-ray imaging provides a powerful tool for in situ characterization of these processes,which is essential for understanding defect formation mechanisms and optimizing processing parameters.In this study,a high spatiotemporal resolution X-ray imaging technique tailored for metal laser AM was developed utilizing Betatron radiation generated by an ultra-intense,ultrashort pulsed lasers.This technique was employed to perform in-situ characterization of micro-melt pools under various processing conditions.The results show that the Betatron X-ray source allows real-time imaging of melt pool and keyhole dynamics in metal samples with thicknesses on the order of hundreds of micrometers,achieving a spatial resolution of 4 μm.These findings provide a solid foundation for the future application of laser-driven X-ray sources in investigating defect formation mechanisms and advancing process optimization in metal laser AM.关键词
金属激光增材制造/Betatron辐射源/超快微焦点X射线照相/原位表征/匙孔Key words
metal laser additive manufacturing/Betatron radiation/X-ray imaging/in-situ characterization/keyhole分类
数理科学引用本文复制引用
温家星,魏来,范全平,向祥军,李松,王少义,杨月,魏见萌,王浩,郑吟龙,沈显峰,郭航,钱佳毅,朱佳诚,张宗昕,吴玉迟,王文涛,许毅,黄姝珂,赵宗清,吴思辛,朱涛,曾高杰,彭茂,樊思劼,叶翰晟,巩强..激光驱动X射线源实现金属激光增材制造原位表征[J].强激光与粒子束,2025,37(7):1-3,3.
