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

SBIR第一阶段建议的目的是证明将氧化铝基合金化，并利用含或不含碳化硅晶须的二硼化钛晶须来生产一种在导热系数、抗热震性、硬度、强度、摩擦系数和化学惰性方面进行优化的复合刀具。其目的是生产一种优化的陶瓷复合刀具刀片，它将允许提高速度和金属切削率，从而在总体成本降低的情况下显著提高加工生产率。采用统计实验程序对陶瓷复合刀具刀片进行优化设计。预计将应用于镍合金、铸铁和其他金属合金的加工。如果这项工作成功，将提交第二阶段提案。

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.