SPP 2122: Materials for Additive Manufacturing

SPP 2122：增材制造材料

• 批准号: 359962234
• 金额: --
• 依托单位: Lehrstuhl für Technische Chemie I
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/359962234?language=en
• 关键词: SPP; 2122; Materials; Additive; Manufacturing

Lasers in production are becoming increasingly powerful and brilliant, but the materials available are often completely inadequate for the processing tasks currently required. To date, metal powders are used in additive manufacturing that were developed over 50 years ago for a completely different process - thermal spraying. However, in modern laser-based additive processes, these powders lead to process instabilities, porosities, and defects in the component. In the field of polymer powders, there is also a lack of a wide range of materials. Therefore, there is an urgent need to adapt the materials to these widespread production processes, as laser-based processes will dominate important production processes in the long term due to their throughput and precision. In fact, a fundamental research approach already at the beginning of the process chain, the material, is required. Therefore, there is an urgent need for action to defend and further expand Germany's leading position worldwide in photonics and materials science. A coordinated, coherent research program combining materials development and photonics research for the first time, starting at the materials synthesis stage, should help exploit this considerable potential. To ensure feedback between process behavior and material properties, the SPP will fund tandem projects from the fields of "materials" and "laser process", which will cooperate across projects in thematic clusters. The scientific questions will be formulated across materials and focused on the photonic process of additive laser manufacturing. With this, for the first time, chemical, as well as metallurgical and additive-based modifications, will be developed specifically for photonic production. Such a large-scale interdisciplinary study requires targeted coordination and enables a unique Interlaboratory Study (Round Robin), including Research Data Management. Only by this, is it possible to generate an inter-laboratory scientific exchange, which guarantees reproducibility and statistical robustness.

生产中的激光器正变得越来越强大和明亮，但可用的材料往往完全不足以满足当前所需的加工任务。迄今为止，金属粉末用于增材制造，这是50多年前开发的一种完全不同的工艺-热喷涂。然而，在现代基于激光的增材工艺中，这些粉末会导致工艺不稳定、部件中的孔隙和缺陷。在聚合物粉末领域，也缺乏广泛的材料。因此，迫切需要使材料适应这些广泛的生产工艺，因为从长远来看，基于激光的工艺由于其产量和精度将主导重要的生产工艺。事实上，在工艺链的开始，材料，需要一种基础研究方法。因此，迫切需要采取行动来捍卫和进一步扩大德国在光子学和材料科学领域的全球领先地位。从材料合成阶段开始，首次将材料开发和光子学研究相结合的协调一致的研究计划应该有助于开发这一巨大的潜力。为了确保工艺行为和材料性能之间的反馈，SPP将资助“材料”和“激光工艺”领域的串联项目，这些项目将在主题集群中的项目之间进行合作。科学问题将在材料中制定，并集中在增材激光制造的光子过程中。有了这个，第一次，化学，以及冶金和添加剂为基础的修改，将专门为光子生产开发。这样一个大规模的跨学科研究需要有针对性的协调，并使一个独特的实验室间研究（循环），包括研究数据管理。只有这样，才有可能产生实验室间的科学交流，从而保证重现性和统计稳健性。