Electric Erosion Behaviors of Al<sub>2</sub>O<sub>3</sub>/Cu Composites Prepared by Internal Oxidation

Guo Xiuhua; Song Ke-xing; Gao Jianxin; Liu Ruihua

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Electric Erosion Behaviors of Al₂O₃/Cu Composites Prepared by Internal Oxidation
Issue 11, Pages: 876-879(2007)
Published： 2007 ，
DOI：

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[1]国秀花,宋克兴,郜建新,刘瑞华.内氧化法制备Al_2O_3/Cu复合材料的电蚀特性[J].特种铸造及有色合金,2007(11):876-879+819.

Guo Xiuhua, Song Ke-xing, Gao Jianxin, et al. Electric Erosion Behaviors of Al₂O₃/Cu Composites Prepared by Internal Oxidation. [J]. Special Casting & Nonferrous Alloys (11):876-879(2007)
[1]国秀花,宋克兴,郜建新,刘瑞华.内氧化法制备Al_2O_3/Cu复合材料的电蚀特性[J].特种铸造及有色合金,2007(11):876-879+819. DOI：

Guo Xiuhua, Song Ke-xing, Gao Jianxin, et al. Electric Erosion Behaviors of Al₂O₃/Cu Composites Prepared by Internal Oxidation. [J]. Special Casting & Nonferrous Alloys (11):876-879(2007) DOI：

摘要

以Cu2O为氧源

采用内氧化法制备了Al2O3/Cu复合材料

通过电火花试验研究了该复合材料的电蚀特性

并进行了微观组织结构分析。结果表明

采用内氧化法制备的Al2O3/Cu复合材料

在铜基体中弥散分布着纳米级的Al2O3颗粒;在基本保证与紫铜相同加工速度的前提下

Al2O3/Cu复合材料工具电极的相对损耗和工件表面粗糙度均小于紫铜工具电极

且在试验范围内Al2O3/Cu复合材料工具电极损耗和工具表面粗糙度均随Al2O3含量的增加而降低。

Abstract

Al2O3/Cu composites were prepared by internal oxidation with Cu2O oxidizer.The electric erosion behaviors of the composites were tested by electric sparking

and its microstructure was observed also.It was found that nano-Al2O3 particle is dispersively distributed into the Cu matrix of the internal oxidized prepared Al2O3/Cu composites.The tool-electrode wear rate and surface roughness of Al2O3/Cu composites are evidently superior to that of red copper in the condition of the same machining speeds

and they is decreased with the increase of Al2O3 particle content.