ELID磨削砂轮表面氧化膜状态的表征  

State Characterizing of Oxide Layer on Surface of ELID Grinding Wheel

作　　者：杨黎健[1] 任成祖[2] 靳新民[2] 

机构地区：[1]天津大学天津市先进制造技术与装备重点实验室 [2]天津大学

出　　处：《工具技术》2011年第6期40-43,共4页Tool Engineering

基　　金：国家自然科学基金资助项目(50575161)

摘　　要：在线电解修整磨削(ELID)是一种电化学加工技术,可在磨削过程中对铸铁基砂轮进行连续修整,非常适合硬脆材料的超精密镜面加工。在ELID磨削过程中,砂轮表面氧化膜的状态对ELID磨削影响重大,在磨削过程中维持良好的氧化膜状态是获良好表面质量的前提保证。本文通过粘附性实验,建立了氧化膜的状态归一化模型,利用在ELID磨削过程中可实时监测的物理量———电流和磨削力来表征氧化膜状态,并建立了可识别氧化膜状态的模糊神经网络。Electrolytic in-processing dressing （ELID） is an electrochemical machining technique that continuously dresses a grinding wheel with metal matrix through in situ electrolysis. It is particularly applicable to the ultra-precision mirror grinding of hard and brittle materials. The oxide layer on wheel surface takes most important part in the ELID grinding, and the ability to maintain an optimum oxide layer is critical to achieve good quality ground surfaces. In this paper, the state of oxide layer was nor- malized through plaster experiment, and the current, grinding force and grinding parameters were used to establish a fuzzy neural network to identify the state of oxide layer.

关 键 词：磨削砂轮 在线电解修整 氧化膜 状态表征 

分 类 号：TG743[金属学及工艺—刀具与模具]