Method and apparatus for sample and defect removal from a bore

Details Method and apparatus for sample and defect removal from a bore Method and apparatus for sample and defect removal from a bore

1994-07-08

1996-10-29

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

219 6917, 219 692, B23H 100, B23H 900

Patent

active

055693938

ABSTRACT:
A metal section removing tool (10) separates a section of metal from a metal object (M) such as a turbine rotor. The tool (10) separates an elongated section of metal from the object using a pivotally mounted cutting device (16) that cuts along a cutting arc ("B") with cutting arc axis ("A") aligned parallel to the longitudinal axis of the cutting device. Preferably, the tool (10) uses electric discharge machining to separate the metal section from the object (M). The tool (10) also includes channels (48, 50) formed in the cutting device (16) for directing the flow of a dielectric fluid to a cutting edge of the cutting device (16). The cutting method includes first securing a carriage at a fixed position with respect to the object and then pivoting the cutting device along the cutting arc ("B") to separate a section of metal from the object (M).

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patent: 5317607 (1994-05-01), Formanek
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