Surface Structure Control for Precision Grinding Tools

精密磨削工具的表面结构控制

• 批准号: 0522723
• 负责人: Paul Funkenbusch
• 金额: $ 27.6万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0522723&HistoricalAwards=false
• 关键词: Surface; Structure; Control; Precision; Grinding

The objective of this research is to develop an improved understanding of the micromechanics of wear at fine scales, with a special emphasis on erosive wear and self-sharpening of composite (abrasive plus bond) grinding tools. The approach to be used incorporates detailed experimental characterization of composite tool erosion and its influence on surface structure development, followed by process modeling and verification experiments on commercial grinding platforms. Students participating in this project will be involved in educational and mentoring activities in addition to their research, with the results assessed in terms of their impact on both the participating students and their classmates.If successful the benefits of this research will include an improved ability to use the inherently flexible and robust process of tool self-sharpening to grind and finish complex, ultra smooth parts from difficult to grind ceramic materials. Additionally, an improved understanding of the fundamental micromechanics of composite wear, and its influence on the development of surface structures at a fine scale, will be developed. This has potential applications in designing, manufacturing, and predicting the lifetime of composite materials for use in a wide range of additional applications. The research activities of students supported in this project will be leveraged with ongoing research and teaching to provide an enhanced educational experience for both the students directly involved and their classmates. This educational activity targets both retention and recruitment of students in science and engineering, and may be of benefit in improving the participation of diverse student populations.

这项研究的目的是加深对精细尺度磨损微观力学的理解，特别强调复合材料（磨料加结合剂）磨具的侵蚀磨损和自锐性。所使用的方法结合了复合工具侵蚀的详细实验特征及其对表面结构发展的影响，然后在商业磨削平台上进行过程建模和验证实验。参与该项目的学生除研究外还将参与教育和指导活动，其结果将根据对参与学生及其同学的影响进行评估。如果成功，这项研究的好处将包括提高使用固有的灵活和强大的工具自锐过程来磨削和精加工难磨陶瓷材料的复杂、超光滑零件的能力。此外，还将加深对复合材料磨损的基本微观力学及其对精细尺度表面结构发展的影响的理解。 这在设计、制造和预测复合材料的寿命方面具有潜在的应用，以用于广泛的附加应用。该项目支持的学生的研究活动将与正在进行的研究和教学相结合，为直接参与的学生及其同学提供更好的教育体验。这项教育活动的目标是保留和招收科学和工程专业的学生，​​并可能有利于提高不同学生群体的参与度。