Precision Molding of Metallic Micro-Components

金属微型部件的精密成型

• 批准号: 0245589
• 负责人: Wallace Sawyer
• 金额: $ 31.2万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-04-01 至 2006-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0245589&HistoricalAwards=false
• 关键词: Precision; Molding; Metallic; Micro; Components

This project involves an interdisciplinary interaction between researchers with expertise in tribology, materials, and precision engineering. Bulk metallic glasses are materials that may permit the mass production of high strength micro-components of arbitrary geometry at extremely low cost. The successful development of micro-molding technology with these materials will revolutionize micro-systems and enable numerous wholly new classes of micro-devices. The PIs have shown that certain bulk metallic glasses can be molded to produce micron sized or potentially sub-micron sized features at low temperatures (350C-400C), and retain their high strengths. The ability to flow the bulk metallic glasses in the supercooled liquid state appears to be ideally suited for mass production using a micro-molding process.During the project, the material properties relevant to processing of bulk metallic glasses will be characterized. This will be used to determine the processing parameters for forcing this metal glass into molds for micro-components. Accuracy of molded micro-component features will be assessed using an embossing technique with three primary processing parameters varied: pressure, temperature, and embossing rate. As part of this project, some of the undergraduate students in the Integrated Product and Process Design (IPPD) group will work on the design of specific devices and systems. The IPPD students are from 7 different engineering and business departments and typically work on industry-submitted projects. The University of Florida has one of the largest populations of Latino students, and the PIs intend to utilize the close interaction in the IPPD program to recruit these minority students into research and the graduate program. At the conclusion of this project, a knowledge base will have been created to enable a whole new class of products with applications in a wide range of micro and meso-scale systems.

该项目涉及具有摩擦学，材料和精密工程专业知识的研究人员之间的跨学科互动。块体金属玻璃是可以允许以极低的成本大规模生产任意几何形状的高强度微部件的材料。 利用这些材料成功开发微成型技术将彻底改变微系统，并使许多全新类别的微器件成为可能。PI已经表明，某些块体金属玻璃可以在低温（350 C-400 C）下模制以产生微米尺寸或潜在亚微米尺寸的特征，并且保持其高强度。块体金属玻璃在过冷液态下流动的能力似乎非常适合使用微成型工艺进行大规模生产。在该项目中，将表征与块体金属玻璃加工相关的材料特性。 这将用于确定将这种金属玻璃压入微型元件模具的工艺参数。将使用压印技术评估模制微组件特征的准确性，其中三个主要工艺参数变化：压力、温度和压印速率。 作为该项目的一部分，一些在综合产品和工艺设计（IPPD）组的本科生将在特定的设备和系统的设计工作。IPPD学生来自7个不同的工程和商业部门，通常从事行业提交的项目。佛罗里达大学是拉丁裔学生人数最多的大学之一，PI打算利用IPPD计划中的密切互动来招募这些少数民族学生参加研究和研究生课程。在该项目结束时，将建立一个知识库，以使一个全新的产品类别能够在广泛的微型和中型系统中应用。