Propagation of Gas Bubbles at Spark Erosion in Small Working Gaps

For describing the propagation of gas bubbles we have to distinguish between internal and external states. At an example of spark erosion it is shown how the type of gas bubble propagation influence on the process of sequential discharges. Is the mean of gas bubbles the same over many sequential discharges than the removal process is running continuously with the same parameters. However, too much gas bubbles are undesired for an effective removal. To guarantee a high removal rate the pulse parameter have to be chosen depending on the gap geometry and the working fluid. To do this optimally, the knowledge of the gas bubble generation and their behavior is an indispensable need