Fiber laser cutting, because the invisible beam replaces the traditional mechanical knife, the mechanical part of the laser cutter head has no contact with the work, and will not cause scratches to the work surface during work; the laser cutting speed is fast, the cutting is smooth and flat, and generally does not Subsequent processing is required; the cutting heat-affected zone is small. The plasma machine is a kind of thermal cutting equipment. Its working principle is to use the heat of the high-temperature plasma arc to partially melt the metal at the incision of the workpiece, and use the momentum of the high-speed plasma to remove the molten metal to form a processing method of the incision.
Why is the plasma laser machine cut thicker and cheaper than optical fiber?
1. The surface of the plasma cutting machine is rough, and it has advantages in cutting thick plates, and the price is low.
2. The cutting surface of laser cutting is smooth, but that of plasma is rough, so it is necessary to send someone to repair the burrs. The laser cutting surface is smooth, the compensation is small, the precision is relatively high, and it is a little more expensive. In terms of cost, plasma is about 1/3 cheaper than laser.
3. The disadvantage of plasma is that the slit width is about 3MM. The most important part of the plasma is the power supply, which is equivalent to the laser of the laser cutting machine. The power consumption of the plasma is quite high, and the commonly used spare parts, the electrode protection nozzle is also quite expensive, especially the electrode drilling is very expensive.
4. Plasma is often used for cutting thick plates, while fiber laser cutting machines are often used for cutting thin plates. The burrs cut by plasma need to be repaired by someone, while those cut by laser can be formed at one time. No secondary processing is required.
The detailed distinction between laser cutting machine and plasma cutting machine:
1. Compared with plasma cutting, laser cutting is much more precise, the heat-affected zone is much smaller, and the kerf is much smaller;
2. If you want precision cutting, small kerf, small heat-affected zone, and small plate deformation, it is recommended to choose a laser cutting machine;
3. Plasma cutting uses compressed air as the working gas and high-temperature and high-speed plasma arc as the heat source to partially melt the metal to be cut, and at the same time blow away the melted metal with high-speed airflow to form a cut;
4. The heat-affected zone of plasma cutting is relatively large, and the slit is relatively wide. It is not suitable for cutting thin plates, because the plates will be deformed by heat;
5. Laser cutting machines are more expensive than plasma cutting machines.