Study of Methods to Enhance Dynamic Stability of Cantilever Tooling Structures

增强悬臂工装结构动态稳定性方法研究

• 批准号: 8718911
• 负责人: Eugene Rivin
• 金额: $ 13.83万
• 依托单位: Wayne State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-04-15 至 1990-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8718911&HistoricalAwards=false
• 关键词: Study; Methods; Enhance; Dynamic; Stability

This project deals with the basic study of enhancing the dynamic stability of cantilever tooling structures such as boring bars, internal grinding mandrels, and milling cutter used in machining. The damping and stiffness of cantilever boring bars are increased by using composite structures and by coupling auxiliary mass with energy dissipative material for the main structure. Vibration or chatter experienced in machining using a long, slender cantilever tooling limits the metal removal rates, reduces tool life, and effects the finish and accuracy of machined parts. Manufacturing costs are increased due to additional secondary operations required to produce the parts to the desired finish and accuracy. Advancements in this area will enable reduction in the manufacturing costs.

本项目涉及增强 悬臂加工结构的动态稳定性， 棒、内磨削心轴和铣刀， 机械加工 悬臂镗杆的阻尼和刚度是 通过使用复合结构和耦合辅助 质量与能量耗散材料的主要结构。 在使用长， 细长的悬臂工具限制了金属去除率， 刀具寿命，并影响加工零件的光洁度和精度。 制造成本增加是由于额外的二次 将零件生产到所需的光洁度所需的操作， 精度 这一领域的进展将有助于减少 制造成本。