| 摘要 |
A spark erosion machining device has an electrode wire stretched and reeled between two wire guides, with means for inclining the electrode wire with respect to the neutral axis, enabling the variation of the angle of inclination during machining. The wire guides have a guidance profile for which the radius of curvature is at least equal to a value RL given by the formula: (L/L = r/r+RL in which r is the radius of the wire and (L/L is the coefficient of elongation corresponding to the limit of elastic deformation of the electrode wire used. The device also incorporates a measuring and calculating device associated with a numeric controller to determine the positions of the two points of inclination of the electrode wire in the wire guides as a function of the given angle of inclination. |
