摘要
为了减少磨损,延长模具的使用寿命,在模具表面应用激光毛化处理。采用200W灯抽运Nd:YAG激光器,进行系统的激光毛化工艺试验,得出脉冲激光参量对模具表面微观形貌主要几何参量的影响规律,最终获得了预期的几何形貌。并分别测量和分析了毛化模具表面硬度和金相组织状况。结果表明,微凸体表面硬度比基体材料的表面硬度提高了30%～40%,提高了模具表面的耐磨性。
With the aim of reducing wear and prolonging working life of a mould ＆ die, laser texturing technology was applied to the surface of the mould ＆ die. In the experiment,a 200W lamp pumped Nd：YAG laser was adopted to process the mould ＆ die surface. Then the rule of the effect of laser parameters on the micro profile of the mould ＆ die was obtained after experiments. Finally, the expected profile was obtained. The surface hardness and metallographic structure were measured and analyzed. The results showed that the surface hardness of slight protuberance was improved 30% - 40% compared with that of the substrate and the wear resistance of mould ＆ die was improved too.
出处
《激光技术》
CAS
CSCD
北大核心
2009年第5期500-502,共3页
Laser Technology
基金
国家自然科学基金资助项目(50475122)
关键词
激光技术
激光毛化
表面形貌
工艺试验
模具
laser technique
laser texturing
surface roughness profile
process experiment
mould ＆ die
作者简介
米涛（1982-），男，硕士研究生，主要从事特种模具的研究。
通讯联系人。E-mail：fyh@ujs．edu．cn
