It can be said that water jet cutting was a real revolution in the mid-90s
Thanks to this technology speed and precision needs are achieved, overcoming the obstacle created by the cutting of rigid and thick materials and of metals too.
In fact, the water jet with the addition of abrasive to water force pressure (4.000 bar and more) can scratch any kind of metal/plastic also very thick (40/50 mm) without heating and deforming the cutting zone. At the same time combined use of pure water and very small cutting orifices (0,08 mm) allow us to obtain even very complex and small shapes.
The only drawback, considering how water jet machine is conceived and built, is that the cutting can only take place on materials leaned against the cutting plane and not firmly fixed. This will affect the accuracy if the materials are not perfectly laid out. It happens for example with some foam materials such as polyurethanes for soundproofing.