拟稳态条件下AA6061铝合金和TC4钛合金的电化学清理磨削  

ECCG of Aluminum AA6061 and Titanium TC4 at Pseudo-steady States

作　　者：高宾华 何训 王其荣 金滩[1] 尚振涛[1] GAO Binhua;HE Xun;WANG Qirong;JIN Tan;SHANG Zhentao(College of Mechanical and Vehicle Engineering,Hunan University,Changsha,410082;AECC South Industry Co.,Ltd.,Zhuzhou,Hunan,412002)

机构地区：[1]湖南大学机械与运载工程学院,长沙410082 [2]中国航发南方工业有限公司,株洲412002

出　　处：《中国机械工程》2022年第15期1794-1802,1809,共10页China Mechanical Engineering

基　　金：中国航发南方工业有限公司产学研研究合作项目(HFZL2019CXY007)。

摘　　要：电化学清理磨削工艺(ECCG)可有效解决延塑性金属磨削时的砂轮黏附问题,该工艺成功应用的关键是使砂轮表面黏附物的形成率与其电解率相平衡。基于电化学原理和磨削机理分析,提出一种利用电解电流定量评估砂轮黏附率的新方法,确定了不同磨削参数下ECCG工艺所需的工作电压。在拟稳态条件下,利用该工艺对AA6061铝合金和TC4钛合金工件进行磨削加工。研究结果表明,ECCG工艺具有较强的可扩展性,可用于加工大型延塑性金属零件。ECCG process was an effective method to solve wheel loading issue in grinding of ductile metal parts.Keeping the balance between loading material formation on wheel surfaces and the electrolysis was the key to successful application of this process.According to electrochemical theory and grinding mechanism,a new method was proposed to quantitatively evaluate wheel loading degree with electrolysis current,and the working voltages for different grinding parameters were determined during ECCG processes.Both of aluminum AA6061 and titanium TC4 were ground by this machining process at the pseudo-steady states.The results show that the ECCG process holds strong expandability and may be used for manufacturing large ductile metal parts.

关 键 词：电化学清理磨削 铝合金 钛合金 砂轮黏附 

分 类 号：TG580.6[金属学及工艺—金属切削加工及机床]