MRI: Instrument Development: Additive Rapid Prototyping Instrument (ARPI)

MRI：仪器开发：增材快速原型仪器 (ARPI)

• 批准号: 1429658
• 负责人: Yip-Wah Chung
• 金额: $ 46.16万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-07-01 至 2017-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1429658&HistoricalAwards=false
• 关键词: MRI; Instrument; Development; Additive; Rapid

MRI: Development of an Additive Rapid Prototyping Instrument for Advanced Manufacturing ResearchAdditive manufacturing (AM)-- the process of making a three-dimensional object from a digital computer model-- has the potential to revolutionize the way things are made. It enables design-driven and personalized manufacturing and the production of complex parts and structures. This rapidly evolving technology is being used by companies in industries ranging from healthcare to national defense but with current AM processes there are limitations in the accuracy and quality of the parts that can be made. This Major Research Instrumentation award will support the development of an integrated Additive Rapid Prototyping Instrument with multiple AM operations and real-time advanced sensing and control functions. This will enable fundamental research on the fabrication of products from different materials with intricate features and enhanced mechanical properties. This award advances the frontiers of AM and fundamental multidisciplinary research and education and promotes technology transfer to enhance the competitiveness of the US manufacturing sector.The significant feature of this instrument will be its ability to realize multi-physics, multi-material and multi-scale processes for improved accuracy, surface finish, and properties. This multi-functional modular system will perform laser-engineered net or powder bed fusion, with subsystems for accuracy and property enhancements, and process monitoring, operating in a common command-and-control environment. The instrument will integrate several processing energy sources with computer numerically-controlled precision and high-speed high-sensitivity instrumentation. The dominant scientific and technological challenges to be addressed are the realization of the integrated system and the understanding and modeling of hybrid processes and process chains in such an environment. Incorporation of sensors and instrumentation for in situ real-time measurements of relevant physical process parameters as a function of time and position will be crucial to the understanding of interactions that take place between processing energy sources and the workpiece. This fundamental knowledge provides a key stepping stone in advancing the frontiers of additive manufacturing.

磁共振成像：用于先进制造研究的增材快速成型仪器的开发增材制造（AM）--从数字计算机模型制造三维物体的过程--具有彻底改变事物制造方式的潜力。它可以实现设计驱动和个性化制造以及复杂零件和结构的生产。 从医疗保健到国防等行业的公司都在使用这种快速发展的技术，但目前的AM工艺在零件的准确性和质量方面存在局限性。 这项重大研究仪器奖将支持开发一种具有多种AM操作和实时高级传感和控制功能的集成增材快速原型仪器。 这将使基础研究能够从不同材料制造具有复杂特征和增强机械性能的产品。该奖项推动了AM和基础多学科研究和教育的前沿，并促进了技术转让，以提高美国制造业的竞争力。该仪器的显著特点将是能够实现多物理场，多材料和多尺度工艺，以提高精度，表面光洁度和性能。这种多功能模块化系统将执行激光工程网或粉末床融合，具有用于提高精度和性能的子系统，以及在通用命令和控制环境中运行的过程监控。 该仪器将多个加工能源与计算机数控精度和高速高灵敏度仪器集成在一起。 要解决的主要科学和技术挑战是实现集成系统和理解和建模的混合过程和过程链在这样的环境中。结合传感器和仪器的相关物理过程参数作为时间和位置的函数的现场实时测量将是至关重要的相互作用的理解，发生在加工能源和工件之间。 这些基础知识为推进增材制造的前沿提供了关键的垫脚石。