Major Research Instrumentation for integration of efficient effects in multi-material structural components

产品开发研究所研究活动的结果是增材制造功能部件和增材制造结构部件设计的方法和工程环境，具有局部适应特性和综合效应（例如阻尼，热传导或传质）。该研究所现有的制造设施（选择性激光束熔化）允许作为设计自由的很大程度上任意的轮廓，有针对性地使用封闭的、未熔化的粉末材料，以及在构建过程的方向上适应光束熔化过程，以调整机械部件的性能。这一建议的目的是为了在具体调整孔隙度和密度变化以及多材料性和材料分级方面实现进一步的自由度。这是验证研究成果的必要步骤，例如从项目准备和创新重型柴油燃烧系统开发中获得的成果，并为项目的发展和扩展奠定基础，包括GROTESK， SAM研究生院和SFB 1153定制成形。此外，应用伙伴网络(产品开发研究所，热力学研究所，材料科学研究所，涡轮机械与流体动力学研究所；所有莱布尼茨Universität汉诺威)将为跨学科研究提供新的起点，特别是有关未焊接粉末的回收，材料过渡区的表征，部件的整体优化以及要达到的效果或制造部件的时间行为（例如老化）的问题。提出了一种包括外围在内的多材料涂层的激光束熔化系统，并提出了不同激光源同时工作的可能性。为了能够将机器技术领域的未来发展（例如新型多材料涂层或激光概念）集成到设备中，从而能够在长期研究项目中工作，模块化设备概念受到青睐。

The results of the research activities of the Institute of Product Development are methods and engineering environments for the design of additively manufactured functional components and additively manufactured structural components with locally adapted properties and integrated effects (e.g. damping, heat conduction or mass transfer). Existing manufacturing facilities (selective laser beam melting) at the institute allow as a design freedom a largely arbitrary contour, the targeted use of enclosed, non-melted powder material, as well as the adaptation of the beam melting process in the direction of the build process to adjust the mechanical component properties. The aim of this proposal is to enable further degrees of freedom with regard to a specifically adjusted porosity and thus density variation as well as multi-materiality and material grading. This is the necessary step to validate research results obtained e.g. from the projects RePARE and Innovative Heavy-Duty Diesel Combustion System Development and to create a basis for the development and expansion of the projects GROTESK, SAM graduate school and SFB 1153 Tailored Forming. Furthermore, the network of the applying partners (Institute of Product Development, Institute of Thermodynamics, Institute of Materials Science, Institute of Turbomachinery and Fluid Dynamics; all Leibniz Universität Hannover) will provide new starting points for interdisciplinary research, especially questions concerning e.g. recycling of unwelded powder, the characterization of the material transition zone, the holistic optimization of the components with regard to the effects to be achieved or the time behaviour (e.g. aging) of the manufactured components. The proposal is for a laser beam melting system with multi-material coater including periphery and the possibility of simultaneous operation of different laser sources. In order to be able to integrate future developments in the field of machine technology (e.g. novel multi-material coaters or laser concepts) into the device and thus to be able to work on long-term research projects, a modular device concept is favoured.