PURPOSE: To enable to work with a desired angle of inclination by a method wherein a taper machining is performed after the correction of the angle of inclination of a wire electrode is made by the angle of inclination corresponding to the difference between the consumed rod diameters of the wire electrode in the direction of the plate thickness of a workpiece.
CONSTITUTION: In wire-cut electric discharge machining, when machining is performed under the condition that the wire electrode 1 is held normal to the workpiece 2, the dimensional error E is generated in the direction of the plate thickness of the workpiece 2. Said error is due to the wear of the wire electrode 1 in the feed direction thereof. The taper machining is performed after the correction of the angle of inclination of the wire electrode 1 is made by the angle θ of inclination corresponding to the dimensional error. In order to machine the workpiece 2 in such a manner that the machined surface is parallel to the direction of its plate thickness, the desired machining is accomplished by performing a taper machining under the condition that the wire electrode is inclined by the angle θ.
ARAMAKI ATSUSHI
MAKINO BUNPEI
YAMAMOTO MASAHIRO
| SU213995A1 | 1976-06-05 |