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

产品开发研究所的研究活动的结果是设计附加制造的功能部件和附加制造的结构部件的方法和工程环境，这些部件具有局部适应的特性和综合效应(例如，减震、热传导或传质)。该研究所现有的制造设施(选择性激光熔化)允许自由设计一个基本上任意的轮廓，有针对性地使用封闭的、未熔化的粉末材料，以及在建造过程的方向上调整光束熔化过程，以调整机械部件的性能。这一建议的目的是在特定调整的孔隙率和密度变化以及多材料和材料分级方面允许进一步的自由度。这是验证Repare和创新重型柴油燃烧系统开发项目取得的研究成果的必要步骤，并为开发和扩大Grotesk、SAM研究生院和SFB 1153定制成形项目奠定基础。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、透平机械和流体动力学研究所；汉诺威莱布尼茨大学)将为跨学科研究提供新的起点，特别是关于未焊接粉末回收、材料过渡区的表征、关于要达到的效果或所制造部件的时间特性(例如老化)等问题的研究。提出了一种激光熔化系统，该系统具有包括外围的多材料镀膜机，并且可以同时运行不同的激光光源。为了能够将机械技术领域的未来发展(例如，新的多材料涂布机或激光概念)整合到设备中，从而能够进行长期研究项目，模块化设备概念是受欢迎的。

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.