best waterjet cutting process

How Does the Water Jet Cutting Process Work?

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The working principle behind the water jet cutting process is very simple to understand. It takes inspiration from nature itself in how a waterfall could slowly over a long period of time cut through a hard rock below it, giving it form and shape. Water jet cutting machine manufacturers replicated this in their product offerings giving us a no less than state of the art material cutting tool like no other.

There is almost no limit to the applications of water jet cutting and the materials it can handle and cut. Since this material cutting method makes use of water jet technology, we qualify it as a highly efficient cold cutting process. The cutting power of high pressure water can be further intensified with the addition of abrasive materials, allowing it to cut an array of hard and tough materials in half the time.

Silky smooth and minimal kerfs, not to mention the non-workable cutting edges are a few of the reasons why the water jet cutting process has become the method of choice in many industries today.

waterjet cutter technology

Inspiration Behind Water Jet Cutting

As mentioned earlier, water-jet was inspired from nature, a simple functional principle. A fine, high-pressure jet of water is made to move at amazing warp speed and made to hit a particular surface of a workpiece. The action will induce material removal, allowing it to take the shape of your intended design and form.

In order to generate a jet of high pressure water, the system’s high-pressure pump will need to bring the water to certain pressure, of up to several thousand bar. Eventually, it will be directed to the cutting head.

With respect to the material that you want to cut, most especially for hard and extremely tough ones, you can combine your water with abrasive materials. As described above this measure will expedite your water jet cutting process and will cut your cutting time in half. Water will emerge from a jet nozzle opening with a diameter of 0.1 to 0.5 millimeter. The pressure of the water as well as the nozzle opening will determine the power or the intensity of the blasting capacity.

The water jet will separate the particles of the material near the surface inducing a stress-free and seamless cutting process without having to worry about the introduction of heat ingression into the material. With respect to the material’s level of thickness and the nature of the water jet, varying levels cutting depths and speeds can be achieved.

Water-Jet Cutting Advantages

  • Flexible cutting process
  • Cuts a wide range of substances and materials
  • High level of cutting precision
  • Minimal kerfs 
  • Smooth cut edges
  • No need to rework the cut edges
  • No material heat load
  • Environment-friendly method of cutting 
  • Complete absence of slag waste
  • Cutting water can be recycled

High Impacting Factors to the Quality of Cut of Water Jet Machine

There are some of the parameters that are likely to create a significant impact to waterjet cutter performance and its cutting quality. These influencing factors would include the following:

  • Nozzle opening diameter
  • Nozzle distance/proximity to the material surface
  • Pump pressure
  • Cutting head feed speed
  • Water jet machines generated cutting pressure