AN OVERVIEW OF WATERJET CUTTING
   
 

Cutting Description

Overall bed size 8000 x 4000 mm

Waterjet cutting is the fastest growing profiling method world-wide. Heat and gaseous materials free, the process brings accurate and cost effective cutting options to our customers over a wide range of material, thickness and applications.

Waterjet cutting machines pressurise a stream of water up to 60,000 pounds per square inch, which is forced through an orifice ranging from 0.1. and 0.35mm.This creates a fine bead of water which is strong enough to cut a wide range of soft metals such as foam, rubber, plastic, glass fibre, etc.

An Abrasive Waterjet system can be created by the introduction of an abrasive, usually garnet, into the water stream as it leaves the nozzle. Combining the high-pressure water with the abrasive produces a stream that is capable of profiling nearly any material such as, titanium, stainless steel ceramics, laminates and Kevlar.

Advantages of Water Cutting

The Process

Process Applications and Uses

Process Precision

Advantages of Waterjet Cutting
Waterjet cutting can be used on virtually all materials and has an ability to cut greater thickness (up to 240mm).

In addition to this the cutting produces no heat-affected zone and tension free processing due to minimum cutting force, reducing the need for some secondary finishing. They are well suited for high-performance metals.

The Process
Waterjet cutting is a process used to cut materials using a jet of pressurized water as high 60,000 pounds per square inch (psi). This is then passed through a diamond or sapphire nozzle, which creates an extremely fine bead of water, which will cut through soft materials. The cut is clean and accurate.

Often, the water is mixed with an abrasive like garnet, which produces a water stream and a focused 1mm diameter beam that is capable of profiling almost any. This process enables materials to be cut cleanly to close tolerances, squarely and with a good edge finish.

Waterjets are capable of cutting many industrial materials including stainless steel, titanium, aluminium, tool steel, ceramics, granite, and armour plate.

Process Applications and Uses
Typical process uses Cutting, ablation, structuring
3D material cutting Partially possible since residual energy behind the work piece is destroyed
Materials able to be cut All materials can be cut by this process 
Material thickness at which cutting or processing is economical 240mm, subject to material availability
Common applications for this process metals of greater thickness, cutting of stone and ceramics

Precision Process
General Tolerance +/- 0.25mm, unless otherwise agreed
Minimum size of the cutting slit 0.5mm
Cut surface appearance The cut surface will appear to have been sand-blasted, depending on the cutting speed
Degree of cut edges to completely parallel Good; there is a "tailed" effect in curves in the case of thicker materials
Positioning accuracy +/- 0.05mm per 1000mm
Repeating accuracy +/- 0.025mm
Range of operation X axis 4050mm: Y axis 8500mm
Degree of burring on the cut No burring occurs
Thermal stress of material No thermal stress occurs
Cut Quality Standard, unless previously agreed

 

Cold cutting – no thermal distortion to material

Tension free processed parts – minimal cutting force.

Cuts virtually any material including glass, marble and stone.

Cuts and penetrates soft materials including foam, rubber.

Processes thick materials - Thickness of 240mm can be cut

Highly complex profiles

Cutting programmes can be produced from drawings or digitised templates.

D.X.F. files and files imported direct from CAD system.

Achieves accurate, burr free edges.

Substantial material savings, with nesting capabilities and narrow cutting kerf.

Thin materials processed accurately.

Productivity through multihead cutting and multilayer cutting.

Increased material utilisation 


 
Our technical service desk is available to discuss and advise the optimum cutting process for your application.
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Waterjet Metal Cutting
Waterjet Profiling
Waterjet Fabrication
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Charles Day Limited, Downgate Drive, Sheffield, South Yorkshire S4 8BT • Tel: 0114 244 5544 • Fax: 0114 244 5588 • Email: sales@daysteel.co.uk