公开(公告)号：EP2505292A1

公开(公告)日：2012-10-03

申请号：EP11002632.5

申请日：2011-03-30

申请人： Universitätsklinikum Freiburg ,  Albert-Ludwigs-Universität Freiburg

发明人： Steinberg, Thorsten Assoc. Prof. Dr. ,  Tomakidi, Pascal Prof. Dr. ,  Hösel, Tim Dr. ,  Reinecke, Holger Prof. Dr. ,  Kohal, Ralf Prof. Dr.

IPC分类号： B23H1/00 ,  B23H1/06 ,  B23H9/00

CPC分类号： B23H1/06 ,  B23H1/00 ,  B23H9/00

摘要： The present invention relates to a method for modifying an electrically non-conductive workpiece via spark erosion. The inventive method comprises the following steps: a) providing a workpiece comprising an electrically non-conductive surface; b) providing a first working electrode facing the workpiece at a region to be modified such that a gap is provided between the workpiece and the first working electrode; c) providing a dielectric comprising conductive particles, wherein the conductive particles are obtained via a burn-off from a second working electrode in a dielectric liquid; d) flushing the dielectric comprising the conductive particles to the workpiece, preferably continuously, such that the conductive particles of the dielectric liquid are deposited at the region to be modified and form an assisting electrode on the electrically non-conductive surface, wherein the dielectric liquid preferably fills the gap between the workpiece and the first working electrode; and e) applying an electric current to the first working electrode such that a plasma channel is generated between the first working electrode and the assisting electrode at the region to be modified, thereby modifying the workpiece via spark erosion.

摘要翻译： 本发明涉及一种方法，用于经由火花在电其他非导电工件侵蚀修改。 本发明的方法包括以下步骤：a）提供一个工件包括电其他非导电表面的; b）提供一个区域面向所述工件上的第一工作电极被修改的搜索没有被所述工件和所述第一工作电极之间设置间隙; c）提供电介质包含导电性粒子，worin导电颗粒通过在电介质液体中的从第二工作电极烧尽获得; D）冲洗电介质包括导电粒子对工件，优选连续地求DASS死介电液体在该区域沉积的导电性粒子进行修改和电其他非导电性表面上辅助电极，worin电介质液体的形式 优选填充工件和第一工作电极之间的差距; 和e）向电流测试并在第一工作电极和在该区域中的辅助电极之间产生的等离子体通道中的第一工作电极进行修改，从而修改通过侵蚀火花工件。