SBIR Phase I: Tricontinuous Diamond WC/Co Cutting Tools for High Rate, High Precision Machining of Nonferrous Material, Composites, and Ceramics

SBIR 第一阶段：用于有色金属材料、复合材料和陶瓷高速、高精度加工的三连续金刚石 WC/Co 切削刀具

• 批准号: 9860480
• 负责人: Oleg Voronov
• 金额: $ 10万
• 依托单位: DIAMOND MATERIALS INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-01-01 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9860480&HistoricalAwards=false
• 关键词: SBIR; Phase; Tricontinuous; Diamond; WC

9860480 This Small Business Innovation Research (SBIR) Phase I project wil explore high rate/high precision machining of hard nonferrous alloys, composites, and ceramics using cutters made from a new material, tricontinuous diamond-tungsten carbide (WC)-cobalt (Co) (TDWC). Currently, polycrystalline diamond (PCD) is used in machining; however, low impact resistance does not allow machining of parts with interrupted cuts, and PCD's large grain size limits its application in precision machining. TDWC is a continuous composite consisting of intercalated diamond and WC-Co that exhibits granite cutting volumes characteristic of PCDs and will have impact resistance characteristic of WC-Co. Phase I will focus on design and fabrication of TDWC based cutters and will demonstrate their performance for high rate machining of difficult-to-manufacture materials. Phase II will develop TDWC sintering of nanograined materials for high precision tools, scaled for fabrication of conventional-size industrial cutters. TDWC based cutters are expected to revolutionize machining in the nonferrous, composite, and ceramics manufacturing industries, allowing high rate high precision machining of these advanced materials with significant reduction in manufacturing cost and increase in productivity. Commercial sales of TDWC-based inserts are anticipated for Phase III.

9860480 该小型企业创新研究（SBIR）第一阶段项目将探索使用由新材料三连续金刚石-碳化钨（WC）-钴（Co）（TDWC）制成的刀具对硬质有色合金，复合材料和陶瓷进行高速/高精度加工。目前，多晶金刚石（PCD）用于机械加工;然而，低抗冲击性不允许加工具有断续切削的零件，并且PCD的大晶粒尺寸限制了其在精密加工中的应用。 TDWC是一种连续的复合材料，由插层金刚石和WC-Co组成，具有PCD的花岗岩切削体积特性，并具有WC-Co的抗冲击特性。第一阶段将专注于TDWC刀具的设计和制造，并将展示其在难加工材料的高速加工中的性能。 第二阶段将开发用于高精度工具的纳米颗粒材料的TDWC烧结，用于制造常规尺寸的工业刀具。 基于TDWC的刀具有望在有色金属、复合材料和陶瓷制造业中实现机械加工的革命性变革，从而实现这些先进材料的高速高精度加工，同时显著降低制造成本并提高生产率。 基于TDWC的内衬的商业销售预计将在第三阶段进行。