OD Motoring

All About the Waterjet Cutting Machine

All About the Waterjet Cutting Machine

The working principle behind every waterjet cutting machine has something to do with soil erosion. If soil erosion has the power to shape the earth and cut through the ground, rocks, and sediments, so does water can too by intensifying its strength and speed it will penetrate tough objects. Combining abrasive materials with high-pressure water in a waterjet machine, it will reduce the amount of time in cutting through metal parts.

Secret Behind Waterjet Cutting Machine

By keeping the spray coherent, waterjets can cut through metal. Channeling high-pressure water through extremely narrow jeweled nozzle will help make it possible, keeping the spray water almost solid and coherent in strength.

Waterjets are no comparison to metal cutters because they can never get dull and will never produce heat. Hence, overheating is a bygone issue with their use in your metal fabrication projects.  

Waterjet Machine Timeline

In the early years of the 1900s, the practical application of hot water jets and steam is mostly for cleaning purposes only. It is only in the 1960s that waterjets found their way to mining applications, and only about a decade ago that the metal fabrication and processing industry began its use of waterjets for cutting tough materials, particularly conductive metals. As for the abrasive water jets, they were only introduced in the metal fabrication space in the 1980s.  

Traditional Metal Cutter Versus Waterjet Technology

The use of a mechanical process in metal cutting projects will only allow you to cut one piece of metal at a time. There is so much drudgery in the process, and it was also expensive and time-intensive.

Objects you can cut through with waterjet cutting machine include:

  • Marble
  • Granite
  • Stone
  • Metal
  • Plastic
  • Wood
  • Stainless steel

Today, abrasive cutting and computer-controlled waterjets are used massively throughout the industry and are mostly used for cutting through both soft and tough or hard materials.

The mixture of water and abrasives mixture will leave the nozzle at an approximate speed of more than 900 mph. The latest models of waterjet machines are so powerful they can cut within two-thousandths of an inch.  

Waterjets and abrasive jets are not one and the same,  there is a slight distinction between the two. Practical application of waterjets is to cut through softer materials whereas abrasive jets are used mostly in cutting through harder materials like conductive metals.

The actual cutting process, in waterjet technology though, is often carried out in underwater surface. This has to be done this way in an effort to reduce noise and splash. Faster feed rates help out n keeping the jet from cutting all the way through.  

As for the water pressure, the typical range that is used exclusively in waterjet machines would be ranging from 20,000 to 55,000 PSI (pounds per square inch).  The high-pressure water then will be forced to come through an extremely tiny orifice or opening, about 0.010″ to 0.015″ in diameter in a jewel.

Some people are finding it hard to believe that water can be utilized to cut through tough objects like metal. But we say that it is actually similar to the power washer wand that used mostly at your local car-washing shop. Such equipment harness water to “cut through” a car’s dirt film that is usually deposited and accumulating on its wheels, body, and tires.  

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