STRATMAN: The Role of Grinding Protocol on Cam Service Life

STRATMAN：磨削协议对凸轮使用寿命的作用

• 批准号: 9215629
• 负责人: Robert Hendricks
• 金额: $ 60万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-10-01 至 1997-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9215629&HistoricalAwards=false
• 关键词: STRATMAN; Role; Grinding; Protocol; Cam

The thermal and mechanical aspects of grinding introduce locked-in stresses into finished parts; these residual stresses have been suspected of significantly affecting service life. Through an interdisciplinary examination of the cam grinding process, the project will develop the base science and engineering technology that will allow an engineer to predict and control residual stresses in ground components, and understand the role of residual stresses in the wear and fatigue of ground components. The research team will comprise of engineers and scientists from universities and American industries, with expertise in residual stress analysis and modeling, depth profiling of stresses, thermal analysis and modeling, statistics, tribology, mechanical metallurgy, fatigue, and failure analysis. Major producers of testing equipment, of abrasives and grinding equipment, and of automobile engines and their related components, have committed financial support, materials, equipment and facilities, as well as the unique capabilities of their engineers, to gain an understanding of how machine grinding alters a part's properties and durability. The results should provide a significant competitive advantage for American machine tool manufacturers in the development of uniquely instrumented grinding machines, and will have immediate applicability to manufactures of products involving precision ground components.

磨削的热和机械方面引入锁定应力到成品零件；这些残余应力被怀疑会显著影响使用寿命。通过对凸轮磨削过程的跨学科研究，该项目将发展基础科学和工程技术，使工程师能够预测和控制地面部件的残余应力，并了解残余应力在地面部件磨损和疲劳中的作用。研究团队将由来自大学和美国工业界的工程师和科学家组成，他们在残余应力分析和建模、应力深度剖面、热分析和建模、统计学、摩擦学、机械冶金、疲劳和失效分析方面具有专业知识。测试设备、磨料和研磨设备以及汽车发动机及其相关部件的主要生产商已承诺提供资金、材料、设备和设施以及其工程师的独特能力；了解机械磨削如何改变零件的性能和耐久性。研究结果将为美国机床制造商在开发独特的仪器磨床方面提供显著的竞争优势，并将立即适用于涉及精密磨削部件的产品制造商。