Molds surface finishing with new EDM process in air with thermoplastic composite electrodes

被引：37

作者：

Curodeau, A ^{[1
]}

Richard, M ^{[1
]}

Frohn-Villeneuve, L ^{[1
]}

机构：

[1] Univ Laval, Dept Engn Mech, St Foy, PQ G1K 7P4, Canada

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2004年 / 149卷 / 1-3期

关键词：

EDM; surface finishing; thermoplastic;

D O I：

10.1016/j.jmatprotec.2003.10.040

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents a variant of the standard die sinking EDM process, where a thermoplastic composite electrode, instead of solid graphite, is used to perform fine EDM finishing using air as dielectric medium. A detailed description of this distinctive EDM method is provided, where the complementary surface roughness of a compression molded polymer composite electrode is used in order to reduce iteratively the corresponding surface roughness on the workpiece. The use of a thermoplastic composite electrode with air instead of water or oil as dielectric medium is rationalized and a proof of concept is presented, where the peak-valley surface finish of a rough machined P20 tool steel part is iteratively flattened by 30 mum over three thermoplastic composite electrode forming, and EDM process cycle. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：278 / 283

页数：6