超精密切削镍磷合金镀层模辊及刀具磨损特性研究  

Ultra Precision Machining of Electroless-Plated Ni PMold Roller and Tool Wear Characteristics

作　　者：于海鹏 YU Hai-peng(China Coal Research Institute Energy Conservation Technology Co., Ltd, Beijing 100013, China)

机构地区：[1]煤科院节能技术有限公司,北京100013

出　　处：《机械设计与制造》2017年第7期167-170,共4页Machinery Design & Manufacture

基　　金：煤炭科学技术研究院科技发展基金项目(2016CX02)

摘　　要：研究了金刚石刀具对具有镍磷合金(NiP)合金镀层的压印模辊进行长距离连续切削时刀具的磨损情况。首先,通过金刚石超精密辊筒车床对大尺寸NiP合金镀层模辊进行精密V槽切削。然后,利用加工好的V槽模辊进行卷对卷压印实验,通过压印片材上不同位置的表面粗糙度测量分析了刀具从切削开始到结束过程中的磨损情况。最后,利用Advant Edge软件进行了有限元模拟切削过程中刀尖温度分布状态,同时对比了切削过程中不同位置处刀尖的轮廓线。实验结果表明:金刚石刀具切削NiP合金镀层模辊时刀具的磨损过程是有一个先慢后快的规律,即刀尖切削刃发生石墨化转变产生为崩刃以后,刀具的磨损速率明显加快。The diamond tool wear of long distance and continuous cutting on electroless-plated NiP roll mold was investigated. First, the roll-to-roll embossing experiment was completed by the machined V-shaped groove roll mold on diamond roller lathe, and then the wear of the tool from the beginning to the end of the cutting process was analyzed by the surface roughness of different locations on the embossed plastic sheet. Finally, the temperature distribution and the contour at different positions of the tool nose were simulated by AdvantEdge during cutting process. Experimental results indicate that theembossing sheet surface roughness values of the starting point, midpoint and end point were 5.062 Izm, 5.1755 ~m and 5.7975 μm, which are consistent with the simulation results.The results from this study verify that the wear process of diamond tool is a slow-fast rule during cutting on NiP roll mold. After the graphitization transformation for tool cutting edge, wear rate of tool is accelerated apparently, and the clearance face has a more serious wear than the rake face of the diamond tool.

关 键 词：金刚石辊筒车床 镍磷合金镀层模辊 V槽 金刚石刀具磨损 有限元模拟 

分 类 号：TH16[机械工程—机械制造及自动化] TH164