Capillary Tool Electrode with Fluid Removal Medium for Wear Compensation in EDM

摘要

Electro discharge machining represents a very important procedure for the micro production technology and is used today in a lot of areas successfully. A barrier for this procedure is the wear of the electrode and the resulting inaccuracies at the workpiece. A compensation of the wear during the process is of crucial importance . In the course of the research works at the Institute of Production Science wbk, a new electrode with the purpose of control and compensation of the wear has been developed together with an industrial partner. The experimental setup is comprised of a non-conductive capillary made of Al_2O_3 through which different electro-conductive materials ranging from dissolved salts to gallium are transported.