STTR Phase I: Integrated Design of Nanostructured Diamond Coated Drills (for Dry Drilling of High-strength Automotive Powertrain Components)

STTR第一期：纳米结构金刚石涂层钻头集成设计（用于高强度汽车动力总成部件的干式钻孔）

• 批准号: 0741028
• 负责人: Raymond Thompson
• 金额: $ 15万
• 依托单位: VISTA ENGINEERING INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0741028&HistoricalAwards=false
• 关键词: STTR; Phase; Integrated; Design; Nanostructured

This Small Business Technology Transfer (STTR) Phase I project seeks to overcome one of the barriers to widespread acceptance of diamond coating technologies for cutting aluminum alloys which is to fabricate functional diamond coated drills. Drilling is among the most difficult of the machining processes and responsible for bottlenecks in workflow efficiency. Chemical-vapor-deposition (CVD) diamond coatings greatly extend tool life; however, drill geometry affects both the cutting capability as well as coating characteristics, and these synergistic coating/tool characteristics must be solved in an integrated manner. The objective of this project is to develop the scientific tools that facilitate synergistic design of CVD diamond and cutting edges of tungsten carbide; cobalt drills that will enable high throughput, unlubricated hole-making processes for high-strength aluminum.The project will focus on the analysis and design of drill geometry, CVD coating, and drill performance as measured by fully instrumented cutting machine, CVD reactor and advanced characterization techniques. The broader impact/commercial potential from the technology will be improved designs for CVD diamond drills that incorporate synergistic coating process variables with drill geometric parameters. This project will specifically benefit US workers and the US economy because it levels the playing field against manual-intensive workforces. This project addresses high productivity through scientific methods to improve manufacturing, specifically high speed hole drilling of automotive, aluminum-alloy components. The development of CVD diamond coatings for cutting tools, especially drilling tools will improve productivity by reducing cutting time, tool inventory and congested workflow. This will increase the global competitiveness of the US automotive industry and aerospace industries where hole drilling is critical to production.

这个小企业技术转让（STTR）第一阶段项目旨在克服广泛接受用于切割铝合金的金刚石涂层技术的障碍之一，即制造功能性金刚石涂层钻头。钻孔是最困难的加工过程之一，是工作流程效率的瓶颈。化学气相沉积（CVD）金刚石涂层大大延长了刀具寿命;然而，钻头几何形状影响切削能力和涂层特性，这些协同涂层/刀具特性必须以综合方式解决。该项目的目标是开发科学工具，促进CVD金刚石和碳化钨切削刃的协同设计;钴钻，将实现高产量，无润滑制孔工艺的高强度铝。该项目将集中在分析和设计钻头几何形状，CVD涂层，和钻头性能，通过全仪表切割机测量，CVD反应器和先进的表征技术。该技术更广泛的影响/商业潜力将是改进CVD金刚石钻头的设计，将协同涂层工艺变量与钻头几何参数相结合。该项目将特别有利于美国工人和美国经济，因为它为手工密集型劳动力提供了公平的竞争环境。该项目通过科学的方法提高生产效率，特别是汽车铝合金部件的高速钻孔。CVD金刚石涂层用于切削工具，特别是钻井工具的发展将通过减少切削时间，工具库存和拥挤的工作流程来提高生产率。这将提高美国汽车工业和航空航天工业的全球竞争力，其中钻孔对生产至关重要。