New multi-function building plate for improving metal laser powder bed fusion by enhancing the alignment accuracy of in-process monitoring data, computed tomography measurements, and building volume geometry

被引:2
|
作者
Zanini, Filippo [1 ]
Bonato, Nicolo [1 ]
Carmignato, Simone [1 ]
机构
[1] Univ Padua, Dept Management & Engn, Vicenza, Italy
关键词
Laser powder bed fusion; X-ray computed tomography; In-process monitoring; Building plate; Design for metrology;
D O I
10.1007/s00170-024-13514-x
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Laser-based powder bed fusion of metals (PBF-LB/M) is an additive manufacturing process enabling the fabrication of parts with highly complex and customizable geometries, enhanced strength-to-weight properties, and minimized material waste. Despite its unique capabilities, PBF-LB/M needs research and innovation efforts to enhance process dynamics and product quality, as well as to broaden its adoption in high-value industrial sectors, such as aerospace and biomedical. In this context, in-process monitoring solutions and post-process part quality evaluations are fundamental to improving the process towards sustainable, first-time-right, and zero-defect production. This paper describes a novel building plate concept for metal laser powder fusion, whose characteristics were specifically designed to enable and improve the performances of in-process monitoring and high-resolution X-ray computed tomography (CT) measurements. In particular, the plate features markers for perspective correction in off-axis optical monitoring and dismountable inserts with machined geometrical elements to be used for the precise alignment between high-resolution CT reconstructions, in-process gathered data, and building volume geometry. The plate capabilities were demonstrated through examples related to in-process monitoring and post-process X-ray CT measurements.
引用
收藏
页码:2411 / 2425
页数:15
相关论文
共 1 条