| 摘要 |
<p>A workpiece of a non-planar, curved or intricate surface contour carried on a horizontal table is wire-machined with a vertical swivel head for traveling-wire tool by sensing an imaginary plane which is tangent to the surface contour at any point thereon to be successively substantially intersected by the axis of the traveling-wire tool; and tilting the head to cause the axis of the traveling-wire tool transversing the workpiece to be oriented at a predetermined angle, preferably 90 DEG , relative to the said plane substantially at the said point so as to maintain substantially the predetermined orientation of the traveling-wire tool relative to the surface contour, irrespective of change in the inclination of the tangential plane relative to the horizontal plane from point to point, throughout a substantial portion of the entire machining operation.</p> |
