Advanced Strategies for Improving the Surface Integrity in Electroerosion Machining

摘要：

This paper describes and analyses a new current-pulse strategy for improving the surface integrity with the help of dielectric additives. Microstructure analysis and mechanical testing have been performed in order to measure the effectiveness of the strategies in view of various applications. It is found that the addition of nanopowders as Mo and W and the use of currents near the extinction level increase the probability of obtaining an amorphous alloyed structure at the top-white layer zone in die-sinked steels, and inhibits cracking phenomena at the surface. The results are analysed in terms of residual stresses effects through simulation.

关键词： Surface integrity White layer Fatigue testing Residual stresses

作者: R. Perez M. Boccadoro G. Cusanelli R. Flukiger F. de Mestral H. Rojas K. Brans B. Lauwers

作者单位: GF AgieCharmilles, 1217 Meyrin 1, Switzerland Department of Condensed Matter Physics, University of Geneva, 1211 Geneva 4, Switzerland Department of Condensed Matter Physics, University of Geneva, 211 Geneva 4, Switzerland Department of Mechanics, University of Applied Sciences of Geneva, 1202 Geneva, Switzerland Physics Department, Universidad Privada Boliviana, Cochabamba, Bolivia Department of Mechanical Engineering, Division PMA, Katholieke Universiteit Leuven, Leuven, Belgium

会议类型: 国际会议

会议名称: The 16th International Symposium on Electromachining(第16届国际电加工会议)

会议地点: 上海

会议语种:英文

页码: 163-168

在线出版日期: 2010-04-19（万方平台首次上网日期，不代表论文的发表时间）