Study of the Deburring Process for Low Carbon Steel by Plasma Electrolytic Oxidation  

作　　者：李洪涛 阚金峰 蒋百灵 刘燕婕 刘政 

机构地区：[1]College of Materials Science and Engineering, Nanjing Tech University [2]School of Materials Science and Engineering, Xi'an University of Technology

出　　处：《Plasma Science and Technology》2016年第8期860-864,共5页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China(No.51571114);Natural Science Foundation of Jiangsu Province,China(No.BK20130935)

摘　　要：In an appropriate electrochemical environment, the discrete thermal electron emission could be induced in the micro area due to the uneven distribution of electron flux on the anode surface. Thus an oxygen molecule could be ionized at the liquid-solid interface after collision, and then oxygen plasma with distribution characteristics would be formed. The plasma electrolytic oxidation（PEO） could happen at the liquid-solid interface. In this work, the low carbon steel was used to study the deburring process by PEO at a high frequency（70000 Hz）pulse DC mode. Its burr height H from 3.23 mm to 0.04 mm was removed to form a smooth surface within 6 min. The values of corrosion potential and current density for the untreated sample were -0.667 V and 6.735×10^（-5）A/cm^2, respectively. But for the treated sample, the corrosion potential and current density were relatively lower,-0.354 V and 1.19×10^（-7）A/cm^2.Therefore, PEO was expected to be a new deburring method of carbon steel for the material processing field.In an appropriate electrochemical environment, the discrete thermal electron emission could be induced in the micro area due to the uneven distribution of electron flux on the anode surface. Thus an oxygen molecule could be ionized at the liquid-solid interface after collision, and then oxygen plasma with distribution characteristics would be formed. The plasma electrolytic oxidation（PEO） could happen at the liquid-solid interface. In this work, the low carbon steel was used to study the deburring process by PEO at a high frequency（70000 Hz）pulse DC mode. Its burr height H from 3.23 mm to 0.04 mm was removed to form a smooth surface within 6 min. The values of corrosion potential and current density for the untreated sample were -0.667 V and 6.735×10^（-5）A/cm^2, respectively. But for the treated sample, the corrosion potential and current density were relatively lower,-0.354 V and 1.19×10^（-7）A/cm^2.Therefore, PEO was expected to be a new deburring method of carbon steel for the material processing field.

关 键 词：plasma electrolytic oxidation CORROSION DEBURRING ceramic films 

分 类 号：TG178[金属学及工艺—金属表面处理] O53[金属学及工艺—金属学]