GOALI: Development of Comprehensive Drilling Simulation Tool

GOALI：综合钻井模拟工具的开发

• 批准号: 0300549
• 负责人: David Dornfeld
• 金额: $ 40万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0300549&HistoricalAwards=false
• 关键词: GOALI; Development; Comprehensive; Drilling; Simulation

The objective of this Grant Opportunity for Academic Liaison with Industry (GOALI) research project is to develop a more fundamental understanding of drill performance, behavior of cutting tools and materials on burr and chip formation, and hole surface finish quality and diameter. This understanding will be used to develop manufacturing engineering tools for designing and implementing efficient drilling processes in precision components, such as aerospace and automotive parts. The approach used will rely on joint collaboration between the University of California at Berkeley and Boeing. A detailed study of the process variables will be made and analytical tools (finite element, primarily) developed to aid engineers in designing optimal drill methods for application in the precision manufacturing. Specific elements of this study are: 1) develop a finite element model of single layer drilling, 2) evaluate and model drill bit-geometry and materials, 3) develop a finite element model and simulation analysis of multi-layered drilling, and 4) development of an experimental database on burrs/chips formation in drilling.If successful, this research will result in a methodology for process modeling and optimization of hole quality and an associated database of verification that will be the basis for engineers from design to process planning to factory floor trouble-shooting for effective drilling method optimization. The benefits will include: 1) streamline and standardize drilling methods for similar application, 2) standardize drill hardware and significant inventory reduction, 3) reduce cycle time (60 - 80%) from process design to production transition, and 4) create opportunity for existing and new process improvement. This will result in better yield, higher quality and reduced costs. Student participation at Berkeley will result in an excellent training experience and preparation for industry careers or additional study.

该研究项目的目标是对钻头性能、切削刀具和材料对毛刺和切屑形成的行为以及孔表面光洁度质量和直径有更基本的了解。这种理解将用于开发制造工程工具，用于设计和实施精密部件（如航空航天和汽车部件）的高效钻孔工艺。所采用的方法将依赖于加州大学伯克利分校和波音公司之间的联合合作。详细研究的过程变量和分析工具（有限元，主要）开发，以帮助工程师在设计最佳的钻孔方法，在精密制造中的应用。这项研究的具体内容是：1）开发单层钻井的有限元模型，2）评估和建模钻头几何形状和材料，3）开发多层钻井的有限元模型和模拟分析，以及4）开发关于钻井中的碎屑/切屑形成的实验数据库。如果成功，这项研究将产生一种工艺建模和孔质量优化的方法，以及一个相关的验证数据库，这将是工程师从设计到工艺规划到工厂车间故障的基础。为有效优化钻井方法而进行的射击。这些好处将包括：1）简化和标准化类似应用的钻孔方法，2）标准化钻孔硬件并显著减少库存，3）减少从工艺设计到生产过渡的周期时间（60 - 80%），以及4）为现有和新工艺改进创造机会。这将导致更好的产量、更高的质量和降低的成本。在伯克利的学生参与将导致一个优秀的培训经验和行业职业生涯或额外的学习准备。