Investigation on Dynamic Gas Bubble Formation by Using a High-Speed-Camera System

摘要：

During an electrical discharge a gas bubble occurs around the discharge area. This bubble has an impact on the flushing inside the working gap. Powder suspended dielectrics provide the opportunity to influence the gap width and consequently the flushing conditions, too. This effect amongst others leads to a more stable process and better surfaces in terms of a reduced roughness and smaller heat affected zone. With high speed camera photographs a more detailed view into the process is possible. This paper shows chronological sequences of gas bubble formation in terms of their dilatation and collapse. The corresponding gas bubble volumes and resulting crater diameters are described and discussed in order to increase the fundamental understanding of the process.

关键词： Electro Discharge Machining Gas Bubble Powder Additives High-Speed-Camera

作者: F. Klocke J. Dieckmann M. Garzon A. Klink

作者单位: Laboratory for Machine Tools and Production Engineering (WZL), RWTH Aachen University, Steinbachstra(B)e 19, 52 074 Aachen, Germany

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: 145-148

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）