Sheet Metal Processing - Can aluminum panels be laser cut?
- Jan 16, 2019 -

Aluminum sheet processing is often encountered in sheet metal processing. One of the questions is whether the aluminum sheet can be cut with laser. The answer is yes, it can be processed by laser cutting.


The laser cutting machine cuts the aluminum plate and depends on the power of the laser generator. The thickest of 6000W can be cut to 16mm, and the 4500W can be cut to 12mm, but the processing cost is high because it is a highly reflective material, and laser cutting is the use of The focused high-power-density laser beam illuminates the workpiece, causing the irradiated material to rapidly melt, vaporize, ablate, or reach a flash point, while the molten material is blown off by a high-speed airflow coaxial with the beam, thereby cutting the workpiece.


Is the cut surface of the laser-cut aluminum plate as smooth as other materials?


The aluminum plate is also smooth, and the aluminum plate is only a highly reflective material. A large laser generator is required. The cutting gas is cut with nitrogen like other materials, and the surface is not smooth.


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The aluminum plate is laser cut:


1, the cutting seam is fine: the slit of the laser-cut aluminum plate is generally 0.1mm-0.2mm


2, the cutting surface is smooth: the cutting surface of the laser-cut aluminum plate has no burrs and no dross.


3, small thermal deformation: laser processing laser slits are thin, fast, energy concentrated, so the heat transferred to the material being cut is small, causing the deformation of the material is also very small.


4, saving materials: laser processing using computer programming, laser equipment can be used to cut the material of different shapes of aluminum sheet processing parts, improve the material utilization of aluminum sheet, saving a lot of material costs.


5, can cut more thick aluminum plate mainly depends on the power of the laser generator, generally 6000W the thickest can cut to 16mm, 4500W can cut to 12mm.


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Laser cutting aluminum plate notes:


The aluminum plate is a highly reflective material that is very damaging to the laser!


Generally, customers are not advised to take the fiber laser cutting machine to cut the aluminum plate, and use it as little as possible!


A laser is hundreds of thousands of dollars, and it is not worth the fault!


Summary: According to personal experience, the price of carbon dioxide laser machine is relatively low, the power of laser generator is large, and you can try to cut aluminum plate when you need it. Note, as I said above, the black absorbance color is applied to the aluminum plate to prevent the lens from burning out the lens or the laser head. As for the fiber laser machine, do not cut the aluminum plate, it is not worth the loss, choose other ways to process the aluminum plate.


The machined aluminum plate can be processed by CNC punching machine below 6mm, and the water cutting process is more than 6mm!