A Dual-Laser Additive Manufacturing System for Novel Materials (Green3D)

用于新型材料的双激光增材制造系统 (Green3D)

• 批准号: EP/X041190/1
• 负责人: Moataz Attallah
• 金额: $ 62.22万
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FX041190%2F1
• 关键词: Dual; Laser; Additive; Manufacturing; System

This project aims to empower the UK's research institutions and industry with a state-of-the-art dual laser (green/infrared) laser powder fusion (L-PBF) additive manufacturing (AM) system. This development system can be used to process novel metallic materials, using either laser sources. The green laser will enable AM of low laser absorptivity materials, especially Cu and its alloys, precious metals, as well as some structural materials of poor laser absorptivity in the infrared (IR) range. As switching the laser-source is fully automated, the system can tailor the heat input with the geometry in defect-susceptible materials or build functionally graded materials. The small processing chamber will enable the development of excessively costly materials using limited quantities of powders in a fully open system with unlocked parameters and with a quick material changeover, unlike the majority of the IR-based systems in the UK universities. The presence of both lasers on the same system will permit exploring the utility of the laser source on consolidation, throughput and performance, especially novel materials of unknown laser absorptivity. The interest in AM of novel materials is growing rapidly with the expansion in its applications in the space, energy, healthcare, and communication devices sectors.The system will support projects for both the UK academia and industry, due to its ability to process limited quantities of powders, as well as build medium sized components, making it ideal for both material and product development. It will also support research on in-situ process monitoring, materials development and Integrated Computational Materials Engineering (ICME) to simulate the laser-powder interaction and the resulting material properties.

该项目旨在为英国的研究机构和行业提供最先进的双激光（绿色/红外）激光粉末聚变（L-PBF）增材制造（AM）系统。该开发系统可用于使用任一激光源加工新型金属材料。绿色激光将使低激光吸收率材料，特别是铜及其合金，贵金属，以及一些在红外（IR）范围内的激光吸收率差的结构材料的AM成为可能。由于激光源的切换是完全自动化的，因此该系统可以根据缺陷敏感材料的几何形状来定制热输入或构建功能梯度材料。与英国大学中大多数基于IR的系统不同，小型处理室将能够在完全开放的系统中使用有限数量的粉末开发过于昂贵的材料，具有解锁的参数和快速的材料转换。在同一个系统上的两个激光器的存在将允许探索的实用性的激光源的合并，吞吐量和性能，特别是未知的激光吸收率的新材料。新材料增材制造的兴趣正随着其在空间、能源、医疗保健和通信设备领域的应用扩展而迅速增长。该系统将支持英国学术界和工业界的项目，因为它能够处理有限数量的粉末，以及构建中等尺寸的组件，使其成为材料和产品开发的理想选择。它还将支持原位过程监测，材料开发和集成计算材料工程（ICME）的研究，以模拟激光-粉末相互作用和由此产生的材料特性。