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17 Dec 2009Water creates fantastic force if generated properly. Waterjet cutting is able to be used to cut into steel and many other materials. Water is opening new horizons as it is used as an industrial tool. Focusing to a fine point water is how it is used in cutting metal. Through a small nozzle fitted with a small jewel the waterjet cuts water as it is funneled a an extremely high pressure.
Have you seen a laser cut through metal? Water in essence is turned into a laser by high pressurized generators. The ultra high pressurized system is the key to the cutting system. A powerful pump system generates this intense pressure needed to turn the water into a laser.
The new technology is key to this system. Who would have thought fifty years ago that water could be used to cut through steel? A unique plunger reciprocates backward and forward which is powered by 210 bar of oil pressure. The oil pressure serves as a huge viscid that is up to twenty times bigger than the water plunger. 210 bar of oil pressure increases the water pressure beyond 4,100 bar of oil pressure. The water is compressed at 4,100 bar and the water is compressed approximately 10 percent.
A continuous water pressure is guaranteed by the large shock attenuator integrated in the high pressure plumbing system. The plumbing system also includes flexible tubing. Through this tubing the water is pumped into the cutting head. In the cutting head a small head held with a jewel creates the pressure into velocity. The hole in the orifice is approximately the size of a human hair.
Can you guess the speed of the water stream… It is three times faster than the speed of sound. This creates a super sonic power stream capable of cutting through steel and other materials. Your water pressure in your home is about 70psi or seventy pounds per square inch. A waterjet has 60,000psi. Water is exiting the nozzle at more than 900 miles per hour.
The waterjet is used on soft materials such as foam, paper, food, gasket… For hard materials like steel and even titanium, abrasives are mixed with the water. The abrasives work with the water to cut through hard substances.
Metals, stone, glass, and fiber reinforced materials can be easily cut with the waterjet using abrasives. The waterjet uses the abrasive to cut through most if not all metals known to man and results in accurate satin smooth cuts. The waterjet assures cutting free from flaws of stone, glass, and even fiber materials that have been reinforced.
Granite counter tops are cut with a waterjet and foam packing is cut by the waterjet which shows how versatile the machine is. The waterjet never gets dull. You can forget about spending time with predrilling. It is a step you can skip with the waterjet. The waterjet is the future of cutting. Take a look at this cutting edge technology today. By the way a lot of airplane materials are cut by the waterjet because the metal cannot go through the normal temperature rise a metal blade would cause.
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