Research Initiation: Temperature Prediction in Ultra- Precision Machining

研究启动：超精密加工中的温度预测

• 批准号: 8909489
• 负责人: Don Lucca
• 金额: $ 0.32万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-08-01 至 1990-01-01
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8909489&HistoricalAwards=false
• 关键词: Research; Initiation; Temperature; Prediction; Ultra

This project deals with the study of the temperatures in ultra-precision machining. An analytical model will be developed which generates the frictional heating at the tool-workpiece interface due to elastic recovery and possible flank wear. Heating at the shear zone, rake face and flank face will be coupled. Functional dependence of the partitioning of heat and the resulting temperatures on the process variables and tool/workpiece material combinations will be provided. Cutting tests will be performed on ultra-precision machine tools to provide model input data and verification. The resulting predictive capability and insight into the governing physics will significantly increase the understanding of the mechanics of chip formation in ultra precision machining, tool performance and wear, and the resulting workpiece subsurface damage and residual stress state. This will lead the way to improved accuracy and quality of the machined workpiece, in the ultra precision machining process.

该项目涉及超精密加工中的温度研究。 将开发一个分析模型，该模型由于弹性恢复和可能的后刀面磨损而在刀具-工件界面处产生摩擦加热。 剪切区、前刀面和后刀面的加热将耦合。 将提供热量分配和所得温度对工艺变量和工具/工件材料组合的函数依赖性。 切削试验将在超精密机床上进行，以提供模型输入数据和验证。 由此产生的预测能力和对控制物理的洞察力将显着增加对超精密加工中切屑形成机制、刀具性能和磨损以及由此产生的工件表面下损伤和残余应力状态的理解。 这将有助于在超精密加工过程中提高加工工件的精度和质量。