Precision TW electroerosion with staggering multiple V-notched guides
AssigneeInoue-Japax Research Incorporated
InventorKiyoshi Inoue
Life of this patent
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Abstract
A traveling-wire (TW) electroerosion apparatus in which at least one of wire guides which are disposed at opposite sides of the cutting zone includes a plurality of elementary guide members arranged one adjacent to another in the direction of wire travel and having wire-receptive notches, the notched members being staggered to make up a composite guide opening of these notches such that the diameter of an imaginary cylinder which can be inscribed therein is substantially equal to the nominal wire diameter. Preferably, the elementary guide members are arranged to be displaceable relative to one another and in their respective planes, which are parallel to one another, to change the positions of these guide notches and thus to change the diameter of the imaginary cylinder.
Claims2
An apparatus for electroerosively cutting an electrically conductive workpiece with a continuous electrode wire, comprising:
- means for axially transporting the electrode wire through the workpiece while defining a cutting zone therewith flushed with a cutting liquid medium;
- a pair of wire guide means disposed at opposite sides of the workpiece for providing a straight-line path for the traveling wire therebetween;
- power supply means for electrically energizing said cutting zone to erosively remove material from the workpiece;
- and
- cutting feed means for relatively displacing the workpiece and the traveling electrode wire transversely along a programmed cutting path to advance the erosive material removal in the workpiece, wherein at least one of said wire guide means comprises:
- a plurality of planar notched members arranged in the direction of travel of the electrode wire and having respective wire-receptive notches, the notched members being staggered to form a composite opening of said notches such that an imaginary cylinder which can be inscribed therein has a diameter substantially equal to a nominal diameter of the electrode wire.
Dependencies are inferred from the claim text.