SBIR Phase I: High Speed Machining of Titanium using Ultrananocrystalline Diamond Coated Carbide Cutting Tools

SBIR 第一阶段：使用超纳米晶金刚石涂层硬质合金刀具高速加工钛

• 批准号: 0638125
• 负责人: John Carlisle
• 金额: --
• 依托单位: ADVANCED DIAMOND TECHNOLOGIES
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-01-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0638125&HistoricalAwards=false
• 关键词: SBIR; Phase; Speed; Machining; Titanium

This SBIR Phase I project is aimed at developing smooth diamond-coated cutting tools, using a novel deposition technology that provides an ultra-nanocrystalline diamond (UNCD) coating on various substrates. Advanced Diamond Technologies, Inc. (ADT) has developed a new diamond coating technology that, unlike other diamond technologies, is extremely smooth and exhibits much lower friction as deposited, in addition to the hardness, wear resistance, and high thermal conductivity that makes diamond cutting tools superior to others. This project will focus on the application of this coating for the machining of titanium alloys. The outstanding strength-to-weight ratio of titanium and its alloys makes them ideal materials for many aerospace applications. However, titanium alloys are notoriously hard to machine, and aerospace companies are desperate for more reliable, longer lasting cutting tools. Diamond in principle is the ultimate material for this application, but current technologies produce tools that are too rough and lead to high cutting temperatures that are prohibitive for machining titanium which is very reactive with carbon. The result will be cutting tools that are less expensive yet will enable the UNCD cutting tools will also address a world-wide unsatisfied need for more robust yet affordable cutting tools to machine a variety of other advanced materials, including aluminum-silicon alloys, superalloys, and carbon composites. UNCD coated tools will yield much longer tool life, higher cutting speeds, lower cutting temperatures, higher precision, and will greatly accelerate the adoption of the world's hardest material to the toughest machining applications and result in improved products while saving money.

SBIR第一阶段项目旨在开发光滑的金刚石涂层刀具，使用一种新的沉积技术，在各种基材上提供超纳米金刚石（UNCD）涂层。Advanced Diamond Technologies，Inc. (ADT)开发了一种新的金刚石涂层技术，与其他金刚石技术不同，该技术非常光滑，沉积时的摩擦力低得多，此外还具有硬度，耐磨性和高导热性，使金刚石切削工具上级其他技术。本项目将重点研究这种涂层在钛合金加工中的应用。钛及钛合金具有出色的强度重量比，使其成为许多航空航天应用的理想材料。然而，钛合金是出了名的难加工，航空航天公司迫切需要更可靠，更持久的切削刀具。原则上，金刚石是该应用的最终材料，但目前的技术生产的工具过于粗糙，导致高切削温度，这对于加工与碳反应非常强烈的钛是禁止的。其结果将是更便宜的切削工具，但将使联合国裁军谈判会议切削工具也将解决世界范围内对更强大但负担得起的切削工具的未满足的需求，以加工各种其他先进材料，包括铝硅合金，超级合金和碳复合材料。UNCD涂层刀具将产生更长的刀具寿命、更高的切削速度、更低的切削温度、更高的精度，并将大大加速世界上最硬材料在最艰难的加工应用中的采用，并在节省资金的同时改进产品。