What Is A CNC Waterjet
What is a CNC waterjet?
The CNC waterjet is a plane cutting machine that combines an ultra-high pressure water jet generator with a two-dimensional CNC machining platform. It raises the pressure of the water flow to a high enough level (above 200 MPa), which makes the water flow have great kinetic energy, can penetrate chemical fiber, wood, leather, rubber, etc., and mix a certain proportion of abrasive in the high-speed water flow, it can penetrate almost all Hard materials such as ceramics, stone, glass, metal, alloys, etc. Under the guidance of the 2D CNC machining platform, the machining starts or ends at any position of the material, and moves at an appropriate speed according to the set trajectory to realize the plane cutting processing of any pattern. The products of the water knife manufacturer are various. .
What are the characteristics and advantages of CNC waterjet?
Compared with the traditional "hot" cutting process, the ultra-high pressure water jet cutting machine uses a water flow as the cutting medium and is a "cold" cutting process. It has the following features and advantages:
1. There is no thermal deformation during cutting, which avoids physical and chemical changes of materials;
2. Widely adapted to the cutting and processing of various materials, with the reputation of "universal cutting machine";
3. The incision is smooth and flat without burrs, and generally no need for further processing;
4. It is operated by numerical control system and has high cutting precision;
5. The cutting seam is less than 1.2mm, which is convenient for cutting the casing and saving materials;
6. The process does not produce waste that pollutes the environment.
CNC waterjets are ideal or unique for materials that are difficult to cut by other methods, such as Kevler, titanium alloys, and various composite materials.
What precision can the CNC waterjet achieve? Strictly speaking, CNC waterjets can cut more accurately than flame and plasma cutting machines, but they are not precision machine tools and should not be labeled with precision. When cutting sheets below 10mm, the cutting speed and compensation are controlled to the right, and the error can be +-0.1mm.
What is the maximum thickness that can be cut by CNC waterjet? Since the target distance of the water jet is uncertain or variable, the maximum cutting thickness of the numerically controlled waterjet is not well defined. Those who are daring, dare to call 400, 500mm, and conservatives say within 100mm, are reasonable. The existing CNC waterjet generally has a flow rate of 2 to 3 liters and a working pressure of 200 to 380 MPa. The jet passes through the air resistance, and the energy attenuation is extremely fast. When it reaches 400 or 500 mm, it basically drifts with the wind, and there is no impact.
For general applications, the thickness of the cut sheet metal is recommended to be no more than 100 mm, and the thickness of the foamed material such as the sponge is not recommended to exceed 300 mm.