Composite Cutting with KMT Waterjet

Because composites are not homogenous materials and are reinforced for greater strength, cutting composites requires a different approach than ceramic cutting or metal cutting, for example. Using conventional cutters and machining techniques will quickly cause parts to wear out and require replacement. Employing the techniques often used for cutting granite or titanium may also compromise the strength of the composite and/or cause delamination, making the material less suitable for use in applications such as aircrafts and medical devices.

As an alternative, cutting with a water jet offers a number of benefits for composite machining. KMT water jet intensifier pumps do not produce heat-affected zones (HAZ) or leave rough edges/burrs that require the material to undergo secondary finishing with other composite machines.. Additionally, very little waste is created with water jet technology to protect the material investment, and the speed of the technology makes it well suited to high production requirements.


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Advantages of Cutting Composites with Waterjet:

  • NO Heat Affected Zone (HAZ) which is ideal for composites and more
  • Safe for the Environment; no toxic fumes or dust and garnet is disposable
  • Ideal for cutting up to 8” (20 cm) of composites materials depending on density of product
  • Can pierce material directly without the need for a pre-drilled starter hole
  • No tool or blade sharpening
  • High or low surface pressure flexibility for sensitive or thick materials
Waterjet machining is a cold cutting process, making it 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 both time and money.

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Waterjet for Cutting Composites

Waterjet cutting of composite material for absorber rings (metal-rubber-metal sheet, thickness 4 mm, cutting speed 400 mm/min, pressure 3,600 bar) at the contract cutting facility in Bad Nauheim, Germany. High quality cut. Pre-drilled piercing holes.