Waterjet cutting can be used to create a wide range of shapes and designs using high-pressure stream water. It is widely used in industries that have strict tolerances due to its accuracy and precision.

Waterjet cutting is precise and accurate, but there are many factors that can impact the accuracy. It is important to take into account factors like operator skill, material controls, part thickness, equipment controls, and other factors that can affect waterjet cutting accuracy. You can improve waterjet cutting precision by understanding the various factors that influence waterjet cutting accuracy.

Waterjet Cutting Accuracy: The Importance

Precision parts can only be made by waterjet cutting. Waterjet cutting accuracy offers many benefits including:


Part functionality. High levels of accuracy in waterjet cutting ensure that the finished product or part is functional.

Consistency. Waterjet cutting is not a heat process that can cause workpiece expansion. This allows all parts to be identical to one another.

Savings in cost. A waterjet cutter is more cost-effective than other precision cutting methods and offers time savings. A waterjet cutter can achieve the highest precision in one pass.

Minimal force. Waterjet cutting uses very little force, which means that there is no need to fix the workpiece. Waterjet cutting is cold, which means that almost no heat is transferred into the material being cut.


Waterjet Cutting Precision: Some Tips

There are several important things to keep in mind when waterjet cutting. You can adjust your cutting accuracy by reviewing each of these factors.


The Control system is a key factor in waterjet machine cutting accuracy. More precise controllers produce more accurate cuts. Waterjet cutting machines have 2 axes for angular control at their cutting heads to ensure top-level accuracy. These waterjets can reduce taper on the cut faces thanks to this control.

Operator Skill

When producing parts with tight tolerances, it is essential to have a skilled operator. Operators must be able to set up and maintain stable tool paths. They should also know how to inspect and fix the part in order to increase tolerances. To ensure the best accuracy, operators must be able to troubleshoot and maintain waterjet cutters.


Because accuracy is dependent on the material being cut it is crucial to choose a material with a consistent hardness and no internal tension.

Part Thickness

Waterjet cutting can cut materials of varying thicknesses. However, the accuracy of waterjet cutting decreases with increasing thickness. It is possible to cut thicker parts by making a test piece and then adjust the program. A properly calibrated waterjet can accurately cut very thick parts if it is well maintained.

Eliminating Taper

For consistent part profiles, eliminating taper is essential. Taper-compensating control of your waterjet cutter head will reduce taper and increase waterjet cutting accuracy.

Preventative Maintenance

Maintenance is key to quality work, just like with all machines and equipment. High levels of precision and accuracy can be achieved by following a strict maintenance schedule and replacing damaged parts at the right time.

Author's Bio: 

Alvina Martino, Additional HR, and Digital Marketing Executive