Fluid jet cutting apparatus

Cutting – By fluid blast and/or suction

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Details

83941, 51424, 51425, 51439, B26F 300, B26D 700

Patent

active

052954250

ABSTRACT:
To cut or separate a workpiece, having a plain or curved surface, a jet-like fluid cutting medium is used. The cutting medium is ejected from a nozzle under high pressure and is directed towards the workpiece. The cutting medium is directed towards the surface of the workpiece not exactly perpendicularly, but with an angle deviation of between 0.1 and 0.3 degrees. An apparatus for performing such a cutting operation comprises a tube with a nozzle at its end through which the cutting medium is ejected. The nozzle is swivelably supported and the tube may be adjusted in X- and Y-direction such that the desired cutting angle may be controlled. In order to catch the fluid cutting jet, there is provided a grating assembly with an uneven surface which comprises apertures and is provided with a protective layer. The surface of the grating assembly is composed of strip portions forming the boundaries of grooves or channels which are filled with gravel or glass granules. The apparatus can be used for a dry cutting operation as well as for an underwater cutting operation.

REFERENCES:
patent: 3927591 (1975-12-01), Gerber
patent: 4058040 (1977-11-01), Fisher
patent: 4112797 (1978-09-01), Pearl
patent: 4312254 (1982-01-01), Pearl
patent: 4728379 (1988-03-01), Audi et al.
patent: 4738174 (1988-04-01), Bloomquist
patent: 5199342 (1993-04-01), Hediger

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