A Ceramic Composite Cutting Tool Insert for Increased Productivity Ultrahigh-Speed Machining

本SBIR第一阶段提案的目的是证明 氧化铝基体合金化的可行性 具有或不具有SiC晶须的二硼化钛晶须， 在热方面优化的复合切削刀具 导电性、耐热冲击性、硬度、强度 摩擦系数和化学惰性。 目的是 生产优化的陶瓷复合切削刀具刀片， 允许提高速度和金属去除率，以实现 显著提高了加工生产率， 成本 将采用统计实验程序， 优化陶瓷复合刀具刀片。 应用是 预计将在镍合金，铸铁，和其他加工 金属合金 如果这项工作取得成功，第二阶段的提案将 提交。

The objective of this SBIR Phase I proposal is to demonstrate the feasibility of alloying an alumina matrix coupled with utilizing titanium diboride whiskers with or without SiC whiskers to produce a composite cutting tool that is optimized in regard to thermal conductivity, thermal shock resistance, hardness, strength, coefficient of friction, and chemical inertness. The purpose is to produce an optimized ceramic composite cutting tool insert that will permit increased speed and metal removal rate to effect a significant increased machining productivity at an overall reduced cost. A statistical experimental program will be employed to optimize the ceramic composite cutting tool insert. Application is expected to be on machining of nickel alloys, cast iron, and other metal alloys. If this work is successful, a Phase II proposal will be submitted.