摘要
在国内首先研制成功梯度功能陶瓷刀具材料FG-1，并研究了该刀具车削淬硬工具钢T10A的切削性能及耐磨性。结果表明，FG－1具备优异的物理力学性能：在低速切削条件下，FG－1与普通陶瓷刀具LT55及SG－4的耐磨性相差不大；而随着切削速度的提高，FG-1的性能明显优于LT55和SG－4刀具。其原因是刀具材料成分的梯度组成发挥了缓解热应力的作用。
A functionally gradient ceramic tool material FG-1 was developed for the first bine in our laboratory and its cutting performance as well as wear mechanism in continuous turning of hardened carbon tool steel T10A were investigated. Results revealed that this tool material was possessed of excellent mechanical properties, FG-1 tool exhibited no superiority over ceramic tools lass and SG-4 at lower cutting speeds, yet wear resistance of FG-1 was much greater than that of lass and SG-4 as cutting speed increase as result of the thermal stress relaxation mechanism derived from the gradient composition of tool material.
出处
《工具技术》
北大核心
1997年第5期3-5,共3页
Tool Engineering
基金
国家自然科学基金
关键词
梯度功能材料
陶瓷刀具
耐磨性
热应力
切削性
functionally gradient material
ceramic cutting tool
wear resistance
thermal stress
