A method for machining a workpiece

The invention relates to a method for machining a workpiece (5) having a conductor (3), which is traversed along its longitudinal axis by a time-varying current, and by an upper guide (11) and a lower guide (13) is guided, between which a magnetic field is generated, wherein the upper guide (11) at a distance y (o) above the magnetic field and the lower guide (13) at a distance y (u) located below the magnetic field.