Selective Laser Sintering Machine

选择性激光烧结机

• 批准号: 463102246
• 金额: --
• 依托单位: Universität Rostock
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2021
• 资助国家: 德国
• 起止时间: 2020-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/463102246?language=en
• 关键词: Selective; Laser; Sintering; Machine

The subject of the proposal at hand is an industrial 3D printing system for large parts, which uses the SLS process to produce components of high complexity with high surface and structural quality in plastic. Selective laser sintering (SLS) of polyamide is a manufacturing process for parts and machine components with which very complex geometries can be manufactured that meet the highest demands in terms of load capacity and strength and are directly comparable to components manufactured using the injection molding process. This means that the manufacturing process has great advantages over many other additive manufacturing processes. Another special feature is the fact that the otherwise usually required support structure is not needed in the manufacturing process and therefore not only individual parts, but a very large number of parts can be manufactured at the same time. This makes the process extremely productive and cost-efficient. At the Department of Fluid Mechanics, the only whole-body magnetic resonance imaging machine in Germany at a mechanical engineering faculty is operated to investigate technical and non-technical three-dimensional flows. The need to avoid any metal objects in the MRI requires flow models made of plastic. With the SLS, all advantages of MR-based flow measurement techniques can be optimally used: Many different models / configurations can be measured in a short time, flows in highly complex geometries can be investigated, fast development cycles can be realized due to the possibility to build new models or components of models overnight. The mechanical properties of the laser-sintered polyamide components ensure the highest possible failure safety of the water-bearing components in the magnetic resonance imaging machine.

该提案的主题是一种用于大型零件的工业3D打印系统，该系统使用SLS工艺生产具有高表面和塑料结构质量的高复杂性部件。聚酰胺的选择性激光烧结（SLS）是一种零件和机器部件的制造工艺，可以制造非常复杂的几何形状，满足负载能力和强度方面的最高要求，并可直接与使用注塑工艺制造的部件相媲美。这意味着制造工艺比许多其他增材制造工艺具有很大的优势。另一个特殊的特征是，在制造过程中不需要通常需要的支撑结构，因此不仅可以同时制造单个部件，而且可以同时制造大量部件。这使得该过程极具生产力和成本效益。在流体力学系，德国机械工程系唯一的全身磁共振成像机被用于研究技术和非技术三维流动。为了避免MRI中的任何金属物体，需要使用塑料制成的流动模型。借助SLS，基于MR的流量测量技术的所有优势都可以得到最佳利用：可以在短时间内测量许多不同的模型/配置，可以研究高度复杂几何形状的流量，由于可以在一夜之间构建新模型或模型组件，因此可以实现快速开发周期。激光烧结聚酰胺部件的机械性能确保了磁共振成像机中含水部件的最高故障安全性。