作　　者： ; ; ; ; ;

机构地区： 上海交通大学材料科学与工程学院金属基复合材料国家重点实验室

出　　处： 《机械工程学报》 2003年第4期53-55,共3页

摘　　要： 运用有限元法计算了梯度功能陶瓷刀具内的热应力,结果表明,在切削速度较低的情况下,梯度功能陶瓷刀具内的热应力与普通陶瓷刀具内的热应力相比差别不大;而在高速切削条件下,梯度功能陶瓷刀具内的热应力明显小于普通陶瓷刀具,说明梯度功能陶瓷刀具适应于高速切削。 The thermal stresses in functionally graded ceramic tool are calculated using finite element methods. Results show that there is little difference between the thermal stresses in the functionally graded ceramic tool and in the common ceramic tool in lower cutting speed. While the thermal stresses in the functionally graded ceramic tool are much smaller than in the common ceramic tool in high cutting speed conditions. This phenomenon show that functionally graded ceramic tool is more suitable for high-speed cutting.

关 键 词： 梯度功能陶瓷刀具 热应力 切削速度 高速切削 有限元

领　　域： [金属学及工艺]