With the development of modern machinery processing industry, the requirements for the quality and precision of cutting have been continuously improved, and the requirements for improving production efficiency, reducing production costs, and having a highly intelligent automatic cutting function are also increasing. The development of CNC cutting machines must adapt to the requirements of the development of modern machinery processing industry. Cutting machine is divided into flame cutting machine, plasma cutting machine, laser cutting machine, water cutting and so on. The laser cutting machine is the fastest, the highest cutting accuracy, and the cutting thickness is generally small. Plasma cutting machine cutting speed is also very fast, the cutting surface has a certain degree of slope. Flame cutting machines are designed for thicker carbon steel materials.
In addition to the above-mentioned economy, the water cutting machine mentioned above is complicated because its cost and price are not low, but the cutting cost per unit processing task is necessarily the second highest for a waterjet compared to other cutting methods. Moreover, the cutting speed must not be the highest. Therefore, it would be a mistake to choose waterjets from the perspective of reducing costs or pursuing speed.
Process adaptability. In addition to smaller diameter steel tubes (up to 50mm) or steel rods (up to 100mm), cutting with a waterjet must be done by rotating the steel tube or steel rod evenly. Moreover, in order not to damage the inner wall of the steel pipe, other measures have to be taken. Cutting steel rods must also be linked in three axes. This determines that such a water cutting machine is more complicated.
In summary, cutting steel pipe or steel bar, several cutting machine selection order should be: disc cutting machine, flame / plasma cutting machine, laser cutting machine, water jet cutting machine.
From another point of view, if it is necessary to avoid deformation when the steel pipe is cut, or the burrs or welding slag generated after cutting by other cutting machines are difficult to clean, or the cutting accuracy is too low, a water knife should be considered at this time.
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