摘 要
在机械加工中，切削加工是最基本而又可靠的加工手段，而刀具材料的性能对切削加工的效率、工件表面质量、刀具耐用度有着决定性影响。在现代切削加工中，陶瓷刀具材料以其优异的耐热性、耐磨性和化学稳定性，在高速切削领域和切削难加工材料方面起着重要作用。本文综合运用材料学和切削加工的相关知识，以单因素试验和正交试验为基础，探索铣削速度、进给速度、铣削深度对切削力、工件表面粗糙度、刀具后刀面磨损宽度的影响；探索工件表面粗糙度成型机理、单齿面铣刀铣削力成型机理以及刀具失效机理。
关键词：陶瓷刀具；铣削加工；工件表面粗糙度；刀具磨损
Abstract
In machining, cutting is the most basic and reliable means of processing. The performance of the cutting tool material has a decisive influence on machining efficiency , surface quality, tool life and so on. In the modern machining, the ceramic tool material with its excellent heat resistance, wear resstance and chemical stability, plays an increasingly important role in the field of high-speed cutting and the materials which is difficult to machined .This paper uses knowledge of materials and machining, basic on the single factor and orthogonal experiments, to explore milling speed, feed rate, depth of milling cutting, influence on the surface roughness, width of tool flank wear and the milling force. Explore the mechanism of the surface roughness formation, cutting force variation and tool wear mechanism. Use the Deform to simulation the cutting process.
Key words: cutting tool; milling; workpiece surface roughness; tool wear
1引言
在机械加工中，切削加工是最基本也是最主要的加工方法，而刀具材料的性能对切削加工的效率、加工表面质量、精度、经济性起着至关重要的作用。刀具材料的发展大体经历了碳素工具钢、高速钢、硬质合金、陶瓷及超硬材料等几个阶段，每出现一种新的刀具材料，金属切削加工的效率和质量便会出现一个飞跃。硬质合金以其高硬度、高强度、高弹性模量，在现代的机械加工行业中占据着重要地位;而陶瓷刀具材料则以其优异的耐热性、耐磨性和化学稳定性，在高速切削领域和切削难加工材料方面，有着硬质合金无法比拟的优点。
2陶瓷刀具材料简述
