What is the difference between a laser cutting machine and a plasma cutting machine?

The difference between laser cutting machine and plasma cutting is mainly in cutting thickness and operating cost.

The surface of plasma cutting is rough, and the cutting of thick plates has advantages and low price. The surface of laser cutting is smooth, but the surface of plasma is rough, and it is necessary to send someone to repair the burr. The laser cutting surface is smooth, the compensation is small, the precision is high, and it is slightly more expensive. In terms of cost, plasma is about 1/3 cheaper than laser.

What is the difference between a laser cutting machine and a plasma cutting machine2
What is the difference between a laser cutting machine and a plasma cutting machine1

The disadvantage of plasma is that the slit width is about 3 mm. The important part of plasma is the power supply, which is equivalent to the laser of a laser cutting machine. Plasma consumes a lot of power, and the common spare parts such as nozzles for electrode protection are also quite expensive, especially the electrode drilling is very expensive.

In laser cutting, because the invisible beam replaces the traditional mechanical knife, the mechanical part of the laser cutter head of the laser cutting machine has no contact with the workpiece, and will not scratch the working surface during work; the laser cutting speed is fast, the incision is smooth and flat, and generally no subsequent processing is required ;Small cutting heat-affected zone, small plate deformation, narrow cutting gap (0.1mm ~ 0.3mm); no mechanical stress and shear burrs in the incision; high machining accuracy, good repeatability, and no damage to the material surface; CNC programming can process any plan , cutting the whole board with a large width, saving time and economy.

The detailed difference between laser cutting machine and plasma cutting machine:

1. Compared with plasma cutting, laser cutting has much higher precision, much smaller heat-affected zone, and much smaller cutting seam;

2. If you want small cutting seam, 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 cut metal, and at the same time blow away the molten metal with high-speed airflow to form a cut;

4. The heat-affected zone of plasma cutting is relatively large, and the cutting seam is relatively wide, which is not suitable for cutting thin plates, because the plates will be deformed due to heat.