用脉冲紫外激光预处理提高刀具的金刚石涂层的附着强度  

To engance the adhesion of tool's diamond-coating by pulsed UV laser pretreatment

作　　者：楼祺洪[1] 李铁军[1] 董景星[1] 魏运荣[1] 周军[1] 刘晶儒[2] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800 [2]西北核技术研究所,陕西西安710024

出　　处：《强激光与粒子束》2003年第8期746-750,共5页High Power Laser and Particle Beams

基　　金：国家863计划项目资助课题

摘　　要：　采用脉冲紫外激光(XeCl,308nm)表面消融预处理方法以硬质合金为衬底制备了金刚石涂层刀具。利用压痕法对涂层结合强度进行了测试,得到了最佳预处理工艺条件。采用碳化硅增强铝合金材料对制备的金刚石涂层刀具进行了实际切削性能实验。实验结果表明:脉冲紫外激光表面消融预处理方法的采用对刀具的金刚石薄膜涂层附着强度的提高有很大的帮助。In this paper, tool's diamond coating are fabricated on tungsten carbide by pulsed UV laser surface pretreatment. The adhesion of diamond coatings under different laser pretreatment conditions are evaluated using indentation test. The optimum laser pretreatment conditions is obtained. Diamond coating tools are actually tested by machining of SiCAl composite materials. The adhesion of diamond coating to tungsten carbide was greatly improved by the pulsedUVlaser substrate pretreatment.

关 键 词：脉冲紫外激光 脉冲激光消融 金刚石涂层刀具 附着强度 

分 类 号：TN246[电子电信—物理电子学]