Abrasive vs. Pure Waterjet Cutting Machine: Which do you have to Choose?

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  • Date:2021/04/20

Waterjet cutting is a cold cutting technique that can perform clean and precise cuts on a variety of fabrics. The water jet cutting machine was originally used for pure water cutting of paper and other very soft materials, but with the development of technology, people can add additives to the water stream to cut harder materials.

 

Pure waterjet cutting machine simply uses a really focused, pressurized stream of water to form precise cuts. An abrasive waterjet cutting machine adds an abrasive like garnet to the water stream, enabling it to chop through harder or thicker materials. During this blog post, we’ll discuss the differences between the 2 techniques to assist you to identify which is best for your project.

 

Pure Waterjet Cutting

 

Pure waterjet cutting uses a special sort of cutting head than abrasive waterjet cutting. The cutting head used in pure waterjet cutting technology is different from that used in abrasive cutting. The difference is that the cutting head for pure waterjet cutting has no mixing chamber and no nozzle. The water is jetted out by the cutting head immediately after passing through the orifice, forming a very thin focused water stream, which produces an extremely fine cutting effect. This feature makes pure water jet cutting more suitable for soft materials.

 

A pure waterjet cutting machine makes a less invasive process than abrasive waterjet cutting. Thanks to the fabulous quality of the stream, it is almost no pressure for most of the fabric cutting. An abrasive waterjet stream is far larger and more powerful, giving it a bent to push or deform soft materials like foam or rubber.

 

What makes pure waterjet cutting suitable for materials:

Felt

Foam

Food products

Paper

Rubber

Thin plastics

 

Some of the benefits of pure waterjet cutting include:

Suitable for light, soft, or delicate materials

Very quick cuts

Won’t generate heat

 

Abrasive Waterjet Cutting

 

In an abrasive waterjet cutting machine, a specialized pump is employed to pressurize water as high as 94,000 psi. At the cutting head, pressurized water passes through the jewel hole to convert the pressure into speed and generate a supersonic water stream capable of cutting almost all materials.

 

In order to perform abrasive cutting, the cutting machine adds abrasive to the water stream through the mixing cavity in the cutting head. Adding abrasives allows the water stream to penetrate harder materials and complete the cut.

 

The advantages of abrasive cutting for cutting thick or hard materials, including:

Ceramic

Metal (steel, aluminum, copper, etc.)

Plastic

Stone

 

Abrasive cutting offers a spread of advantages, such as:

Versatility

No stress introduced to the fabric

Low waste

Easy setup

Won’t generate heat

 

Which Process is true for You?

 

Choosing the proper waterjet cutting machine is vital to the success of the operation. The choice of pure water jet cutting and abrasive water jet cutting should be determined by the hardness of the fabric, the thickness of the material and the level of precision required for cutting. Both waterjet technologies can be applied to a variety of materials.

 

Cutting techniques that need heat may deform the workpiece or harden the sides, making secondary processes harder. Mechanical cutting methods often leave burrs on edges that require to be removed. In general, compared with most other traditional cutting methods, the cutting effect of the water jet cutting machine is more delicate and cleaner.

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