Generally speaking, sheet steel refers to steel with a thickness of 4.5-25.0 mm, thick steel with a thickness of 25.0-100.0 mm, and extra-thick steel with a thickness of more than 100.0 mm. Thick
steel plates are mainly used in engineering construction, machinery and equipment manufacturing, utensil manufacturing, shipbuilding, highway and bridge construction and other industries
Due to the characteristics of less consumables, high efficiency, fine craftsmanship and strong ability, laser cutting processing technology is widely used in the laser cutting of thick steel plates.
1. Will there be burrs?
Whether or not burrs will be produced is a particularly important factor in determining the laser cutting of steel plates. If burrs are generated, then removing the burrs will generate excess labor, which are the time and labor costs of the steel processing plant. Therefore, whether there will be burrs is a core factor in judging whether the laser cutting of steel plates can meet the standard.
2. Flatness of cutting edge
For the laser cutting of thick steel plates, the flatness of the cutting is very important. When avoiding the focus point, the laser will be more and more scattered, which is likely to cause the left and right width of the cutting edge to be inconsistent. If the cutting edge is offset too much, the quality of the product will not meet the requirements and cannot be used. Therefore, the smoother the edge of the thick steel plate laser cutting process, the higher the cutting quality.
3. Overall width of cutting
The total width of the thick steel plate laser cutting process determines the inner diameter of the contour, but during the cutting operation, the steel processing plant must first adjust the relevant parameters to ensure that the product meets the required specifications.
4. Roughness of cross section
When the thick steel plate is laser cut, vertical lines will be formed on the cross-section surface, and the depth of the lines will affect the surface roughness of the steel plate cutting. In most cases, steel mills should minimize cross-section roughness as much as possible, because the brighter the cross-section, the higher the quality of the laser-cut thick steel plate.
5. Deformation of steel plate
If the steel plate is heated by a large amount during the laser cutting process of the steel plate, the steel plate will be deformed, which has a very serious impact on precision machining. Under normal circumstances, the steel processing plant can control the output power of the laser and apply a single pulse of short-pulse laser to reduce the large temperature rise of the steel plate, which can effectively prevent the deformation of the steel plate.
6. Thermal hazard zone
The thermally hazardous area refers to the area where the internal structure of the steel plate changes. In steel sheet laser cutting, the area of metal material at the edge of the cut is heated, which can lead to changes in the construction of the steel sheet. For example, some metal materials will harden, which will affect the normal use.
The steel processing factory praises the steel currently has three aircrafts, including one 32T, two 16T, and two large-scale coiling and leveling machines, with a thickness of 1.0mm-13.75mm, a width of 2 meters, and a 12000W one. Large-scale laser cutting machines and CNC flame cutting machines can perform steel plate finishing, as well as bending, punching, shearing machines, etc., which can be used for steel plate processing business.
