Abrasive Wjm

7/30/2019 Abrasive Wjm

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Jet Machining

Consisting of:

Fluid Jet Machining

Abrasive Jet Machining

Airbrasive Jet Machining


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Also called MicroBlast Machining is aprocess using:

High pressure air with fine powder, blended

together to form an abrasive mixture.

This mixture is sent through a small,precisely machined nozzle.

The result is a highly accurate abrasivestream used for cleaning, cutting, drilling,deburring.


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Airbrasive Machines areextremely versatile and have

limitless applications. Theyhave the power to cut anddrill materials as hard asdiamonds as well as theprecision of delicate items

like fabric and paper.


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Fluid Jet Machining

Water-jet machining

It is manufacturingthrough the use of highly

pressurized liquid, forcedthrough a nozzle andused as the cutting tool.

The orifice can range

from 5 to 20 thousandthof an inch.


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Fluid Jet Machining

Water-jet machining

Water is most common liquid, howeveralcohol,oil, or glycerol may be used

Water jets machining has been in use since1970.

Water jets have many applications ranging from cutting steels to sheets of candy

(using a sugar water or syrup for cutting).


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Fluid Jet Machining Some examples are:

Nickel alloys,Titanium, tool steels,glass, marble, brass,copper, wood, rubber,paper andplastics.

The cutting thickness

is normally for anysize under 6".


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Fluid Jet Machining

Advantages of water-jet machining

The water streammakes very littlenoise.

Chips or waste is

moved out of the wayof the cutting process.


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Fluid Jet Machining


Omni-directionalcutting capabilitiesallow the cutting ofintricate shapes and

curves not possiblewith conventionalcutting tools.


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Fluid Jet Machining


Especially suited forshort run productionbecause there are notooling expenses.

There are no heataffected zone's.


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Abrasives, such asgarnet, diamond or

powders, can bemixed into the waterto make a slurry withbetter cutting

properties thanstraight water.


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Advantages of Abrasive Jets

Quality finish

Materials cut by the abrasive jet have asmooth, satin-like finish, similar to a fine

sandblasted finish.

Minimal burrNo heavy burrs are produced by the

abrasive jet process. Parts can often be

used directly without deburring


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Advantages of Abrasive Jets

over Water Jets

Increased Accuracy

Compared to the

water jet 0.010,abrasive jets average

from 0.00 5.

In this example, thewall are a 0.025

wafer thin.


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Versatile Machining

Cuts in wood


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Versatile Machining

Etching- using a

rapid feed rate.


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Conclusion

Jet Machining is the

right choice of tools

for:

Heat-sensitive or

Brittle materials

Glass

Composites and

Nonmetals

Burrless Applications

Produce long taperedwalls in deep cuts

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Abrasive Wjm