The Waterjet Cutting Process
There are six main process characteristics to waterjet cutting:
- Uses a high velocity stream of abrasive particles suspended in a stream of Ultra High Pressure Water (30,000 – 90,000 psi) which is produced by a water jet intensifier pump.
- Is used for machining a large array of materials, including heat-sensitive, delicate or very hard materials.
- Produces no heat damage to workpiece surface or edges.
- Nozzles are typically made of sintered boride.
- Produces a taper of less than 1 degree on most cuts, which can be reduced or eliminated entirely by slowing down the cut process.
- Distance of nozzle from workpiece affects the size of the kerf and the removal rate of material. Typical distance is .125″.
Temperature is not as much of a factor.