Platform for powder bed fusion of plastics using laser beam

使用激光束进行塑料粉末床熔融的平台

• 批准号: 511805338
• 金额: --
• 依托单位: Technische Universität München (TUM)
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2022
• 资助国家: 德国
• 起止时间: 2021-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/511805338?language=en
• 关键词: Platform; powder; bed; fusion; plastics

The subject of the project is a platform system for powder bed fusion of plastics using a laser beam (PBF-LB/P), which enables basic research in the field of process technology for additive manufacturing processes. To be able to adapt the platform to different research questions, it is based on an adaptive, modular concept with the main components: optics module, process chamber, and control unit.The adaptive optics module includes a CO2 laser and a three-axis optical beam deflection unit. The innovative process strategies that become feasible with this technology will contribute to increasing the economic efficiency of the PBF-LB/P process by enabling a reduction in process time.In addition to standard features, the process chamber includes an adaptable and multi-stage coating system, a reduction of the build volume, and integrated high-speed and thermographic cameras. The system is able to process plastics with a melting point of up to 300 °C. These system features are essential for an efficient qualification and development of new powder materials, the establishment of a closed powder cycle, and for fundamental scientific investigations to increase the reproducibility of part properties. The control unit and the corresponding software must be considered closely with the hardware components already described. The control unit is designed to operate openly, to enable precise process monitoring. This opens up new perspectives for qualifying novel plastic powders during PBF-LB/P, for the detection and prevention of component defects, or for providing predictive values for part properties without the need for post-process material test. The beam source, the beam deflection unit, and the corresponding components can be controlled and adapted independently of the manufacturer.Thus, the PBF-LB/P platform offers the possibility to deepen process research and material development in the field of PBF-LB/P along the entire process chain and to detect and exploit potentials for increasing process understanding, process speed, process robustness and sustainability. In order to be able to conduct independent research in the field of PBF-LB/P and thereby generate new knowledge in the research areas of process and materials research outlined in the application, the funding of the PBF-LB/P platform is of fundamental importance.

该项目的主题是使用激光束（PBF-LB/P）进行塑料粉末床熔融的平台系统，该平台系统可以在增材制造工艺的工艺技术领域进行基础研究。为了使平台能够适应不同的研究问题，它基于自适应模块化概念，主要组件包括：光学模块、处理室和控制单元。自适应光学模块包括一个CO2激光器和一个三轴光束偏转单元。该技术带来的创新工艺策略将有助于通过缩短工艺时间来提高PBF-LB/P工艺的经济效率。除了标准功能外，该工艺室还包括一个可适应的多阶段涂层系统，减少了构建体积，并集成了高速和热成像相机。该系统能够加工熔点高达300 °C的塑料。这些系统功能对于新粉末材料的有效鉴定和开发、封闭粉末循环的建立以及提高零件性能再现性的基础科学研究至关重要。控制单元和相应的软件必须与已经描述的硬件部件紧密地考虑。控制单元设计为开放式操作，以实现精确的过程监控。这为在PBF-LB/P过程中鉴定新型塑料粉末、检测和预防组件缺陷或提供零件性能预测值而无需进行后处理材料测试开辟了新的前景。光束源、光束偏转单元和相应的组件可以独立于制造商进行控制和调整，因此，PBF-LB/P平台可以深化PBF-LB/P领域沿着整个工艺链的工艺研究和材料开发，并检测和开发提高工艺理解、工艺速度、工艺稳健性和可持续性的潜力。为了能够在PBF-LB/P领域进行独立研究，从而在申请中概述的工艺和材料研究领域产生新知识，PBF-LB/P平台的资金至关重要。