液压碳石墨密封环激光辅助车削的加工性能研究  

Study on machinability for laser-assisted machining of hydraulic carbon-graphite seal rings

作　　者：薄纪康[1] 张海英[1] 

机构地区：[1]宁波职业技术学院模具设计与制造系,宁波315800

出　　处：《激光技术》2012年第1期33-36,共4页Laser Technology

基　　金：浙江省高职(高专)专业带头人培养计划资助项目(2007-209)

摘　　要：为了实现液压碳石墨密封环的高效车削加工,采用激光辅助加工方法,进行了碳石墨密封环材料的激光辅助车削加工研究。考虑到碳石墨密封环材料具有高强度、高硬度等特点,利用激光束对工件进行局部加热,以提高加工效率、减小切削力和刀具磨损。针对碳石墨M104密封环的车削加工过程,进行了常规切削和激光辅助切削的对比实验研究。设计了激光辅助加工的实验流程,并进行了工艺参量的合理选择,得到了较高的切削效率。结果表明,激光辅助切削的主切削力和径向力分别比常规切削下降了23.5%和19.9%;激光辅助切削的切削区温度分布与常规切削相近;刀具磨损和破损的程度较小,能获得较好的表面加工质量。To perform high efficient turning of hydraulic carbon-graphite seal rings, the laser-assisted machining of the material of carbon-graphite seal ring was conducted using laser pre-heating. The material of carbon-graphite seal tings has the characteristics of high strength and high hardness, and is typical non-metallic difficuh-to-machine material. The laser-assisted machining heats the workpiece using laser beam, improving machining efficiency as well as reducing cutting force and tool wear. The turning process of carbon-graphite M104 seal ring was focused on, and the conventional machining was compared with the laser-assisted machining. The experimental process of laser-assisted machining was designed and reasonable process parameters were selected. A high cutting efficiency was obtained. The main cutting force and radial force decreased by 23.5% and 19. 9% compared with conventional machining. The temperature distribution in the cutting zone of laser-assisted machining is similar to conventional machining. The laser-assisted machining has less tool wear and can get a better surface quality.

关 键 词：激光技术 激光辅助加工 碳石墨 切削力 切削温度 表面质量 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]