Laser cutting machine VS CNC shearing machine

With the application of laser cutting machines, sheet metal processing technology has been developed rapidly, and brought a revolutionary concept to sheet metal processing. As a traditional sheet metal cutting equipment, mainly numerical control equipment, including shears, flame cutting, plasma cutting, high-pressure water cutting, etc., what are the advantages of laser cutting machines compared to it? Mingcheng will introduce to you one by one below.

The CNC shearing machine is mainly straight-line cutting. Although it can cut a sheet of up to 4 meters long, it can only be used for sheet metal processing that only requires straight-line cutting. It is generally used in industries that only need straight cutting, such as cutting after flattening the plate.


Flame cutting is the original traditional cutting method due to its low investment. In the past, the processing quality requirements were not high. When the requirements are too high, a machining process can be added to solve the problem, and the market is very large. Now it is mainly used to cut thick steel plates over 40mm. Its disadvantage is that the thermal deformation is too large when cutting, the slit is too wide, and the material is wasted. Moreover, the processing speed is too slow, which is only suitable for rough processing.

Plasma cutting and fine plasma cutting are similar to flame cutting. The heat-affected zone is too large, but the accuracy is much larger than that of flame cutting. The speed is also an order of magnitude leap, and it has become the main force in plate processing. The actual cutting accuracy of the domestic top CNC fine plasma cutting machine has reached the lower limit of laser cutting, reaching a speed of more than 2 meters per minute when cutting 22mm carbon steel plates, and the cutting end surface is smooth and flat, and the slope is the best. Control within 1.5 degrees, the disadvantage is that the thermal deformation is too large when cutting the thin steel plate, the slope is also large, there is nothing to do when the accuracy is high, and the consumables are more expensive.

High-pressure water cutting is the use of high-speed water jets doped with emery to cut sheet metal. It has almost no restrictions on the material, and the cutting thickness can almost reach more than 100mm. It is also suitable for materials that are easy to burst when thermally cutting ceramics and glass. It can be cut. Copper, aluminum, etc. can be cut with high-reflective laser materials, but laser cutting has a big obstacle. The disadvantage of water cutting is that the processing speed is too slow, too dirty, not environmentally friendly, and high consumables.


The advantages of CNC shearing machine: it can cut a large number of straight lines, with high accuracy and fast speed; the advantage of laser cutting machine: some complicated patterns are completed by laser. The shearing machine and the laser machine can interact, which greatly increases the production capacity of the enterprise.