Electrode for electric discharge machining; has coupling area with centering contour and screw thread and has working area with working surface and has hard metal layer in coupling area

摘要

Electrode has a coupling area (3) and a working area (2). Coupling area has at least one centering contour (5) and at least one thread (7) to fix the electrode. Working area has a working surface (11) for subsequent machining. The electrode has a hard metal layer (10) in its coupling area, which is preferably nickel or a nickel alloy. Preferably, at least the coupling area has a calibration.