Cutting Metal with Waterjet

For cutting metals such as cutting titanium, steel, brass & cutting aluminum, waterjet cutting is the most versatile cutting method compared to laser and plasma cutting. Waterjet table cutting can be used to cut thicker metals, including titanium and aluminum, (up to 12”/305 mm) than can be processed with laser and it offers greater precision than plasma cutting. Abrasive waterjet systems are also less expensive than laser systems, making them a solid choice for metal cutting and steel cutting in the fabrication industry.

Waterjet machine cutting is a cold cutting process and therefore is also ideal for automotive, medical and aerospace applications where the material cannot be affected by heat. Nearly every type of cut is possible, from using waterjet tables for rapid hole drilling to detailed cuts for automotive applications.

Waterjet cutters use an abrasive additive to create a clean, burr-free cut that does not require secondary finishing saving time and money. Waterjet machines are one of the most versatile cutting processes around and is well suited for high performance metal cutting, aluminum cutting, and titanium cutting.

Practical Examples - Advantages of Waterjet Cutting

As can be seen from our application examples, waterjet cutting features significant advantages in many different situations. Depending on type an thickness of material as well as on the design of the work piece, waterjet cutting may be the most - and in come cases even the only - economical way of cutting an item.

KMT Practical Examples - Advantages of Waterjet Cutting

Picture by courtesy of curveLED GmbH

Item: Headlamp Housing – Aluminium (approx. 16 x 30 cm, thickness 4 cm)
Abrasive Flow Rate: 350 g/min
Pressure: 5,400 bar
Cutting Speed: Straights – 30 mm/min; Radiuses – 10 mm/min
Duration: 4h – 1h/piece when cutting with 4 nozzles

Advantages of Waterjet Cutting

  • Thickness of material (40 mm) together with many small radiuses leads to problems when using conventional separation techniques
  • Compared to strand casting, modifications can be realised quickly
  • Economical even for low quantities and prototyping

Waterjet Cutting Rack-and-Pinion

Waterjet Cutting Rack-and-Pinion_Detail


Rack and Pinion (approx.. 6 x 40 cm, thickness 7 cm)
   Abrasive Flow Rate: 350 g/min
   Pressure: 4,000 bar
   Cutting Speed: 3-10 mm/min



Advantages of Waterjet Cutting

  • Alternative milling technology causes very high abrasive wear due to the hard facing by welding. The waterjet cuts wear free.
  • The waterjet enables the realisation of very small radiuses.
  • The cold cutting technology does not have an impact on the welded metal structures.