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    • 4. 发明申请
    • METHOD FOR MODIFYING AN ELECTRICALLY NON-CONDUCTIVE WORKPIECE VIA SPARK EROSION
    • 通过火花腐蚀修改电气非导电性工件的方法
    • WO2012131036A1
    • 2012-10-04
    • PCT/EP2012/055788
    • 2012-03-30
    • UNIVERSITÄTSKLINIKUM FREIBURGALBERT-LUDWIGS-UNIVERSITÄT FREIBURGSTEINBERG, ThorstenTOMAKIDI, PascalHÖSEL, TimREINECKE, HolgerKOHAL, Ralf
    • STEINBERG, ThorstenTOMAKIDI, PascalHÖSEL, TimREINECKE, HolgerKOHAL, Ralf
    • B23H1/00B23H1/06B23H9/00
    • B23H1/06B23H1/00B23H9/00
    • 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.
    • 本发明涉及一种通过火花腐蚀来修饰不导电的工件的方法。 本发明的方法包括以下步骤:a)提供包括非导电表面的工件; b)在被修改的区域处提供面向工件的第一工作电极,使得在工件和第一工作电极之间设置间隙; c)提供包含导电颗粒的电介质,其中所述导电颗粒通过介电液体中的第二工作电极的燃尽而获得; d)将包含导电颗粒的电介质优选地连续地冲洗到工件上,使得介电液体的导电颗粒沉积在待改性的区域上并在非导电表面上形成辅助电极,其中介电液体 优选地填充工件和第一工作电极之间的间隙; 以及e)向所述第一工作电极施加电流,使得在所述第一工作电极和所述辅助电极之间在所述待修改区域处产生等离子体通道,从而通过火花侵蚀来修改所述工件。