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Laser Cutting and Laser Engraving of Aluminum

The process of laser cutting aluminum is very challenging, but with the right laser and correct parameters, you can attain a highly precise cut.When it comes to marking aluminum, the most common laser process is laser etching. With this process, you can mark anodized aluminum on the surface of the anodized layer. This allows you to keep the material’s high resistance to corrosion and abrasive wear. Laser etching also allows you to mark the bare aluminum before the anodizing process. You can thus implement traceability at the beginning of production.

If you have additional surface treatments before the anodizing process, you may need laser engraving. This process engraves the most resistant marks on the bare aluminum, making sure that they keep their high readability after surface treatments.

The result of laser etching and engraving aluminum is a mark that has a high contrast with the anodization color. Laser marking creates permanent markings for all sorts of identifiers. Common applications include marking data matrix codes, QR codes, barcodes, serial numbers, and logos.

Suitable metals for laser marking and engraving

advertising sign production
high and low voltage electrical cabinet production
metal crafts
kitchen utensils
mechanical parts
sheet metal processing
Would you like more information about laser marking and laser engraving metals?



 circuit boards

 electrical parts

 eye industry

 saw blades

 spring sheets


 electric kettles

 hardware

 knife measuring tools and other 

 medical micro Electronics


Application examples made of plastic

"It is possible to permanently engrave almost any type of plastic, although the various raw materials, color pigments and additives (e.g. fillers, additives, flame retardants) react very differently. 

For laser marking plastics, the fiber laser offers you a range of different methods, such as dyeing, carbonation or foaming. Since various plastics react very differently, you should always test a material sample."

Industrial laser marking: Examples of applications

What is the point of buying a laser for industrial metal marking?

Why choose cutting equipment to process carbon steel?

First of all, for the processing of carbon steel, the most important thing is to ensure the accuracy of the products, especially some hardware parts, because most of them are used in automobile ships, precision parts and household appliances. Second, the cost savings and benefits of fiber laser cutting machines are increasing. In today's increasingly scarce labor force, automated production has gradually become the mainstream of the processing industry, so laser equipment that can save labor but enhance efficiency is destined to become the focus of the market. 

Function and advantages of laser technology

  • The fiber laser cutting machine can be used for both plane cutting and bevel cutting, and the edges are neat and smooth, which is suitable for high-precision cutting of metal sheets. It is an energy-saving and environmentally friendly new products with space saving and gas consumption and high photoelectric conversion rate.

    Advantages of a Leapion laser

    • Excellent beam quality and good cutting quality

    • Fast cutting speed and high production efficiency

    • No burr in the cutting, high cutting precision

    • Auto focus, easy to operate and maintain

    • Very low cost of use, cost-effective

    • Closed design, safe and pollution free

    • Fast cutting speed and high production efficiency

  • The CO2 laser cutting machine adopts a focusing mirror to focus the CO2 laser beam on the surface of the material to melt the material, while blowing the melted material with a compressed gas coaxial with the laser beam, and moving the laser beam and the material relative to each other along a certain trajectory to form a slit of a certain shape

    Advantages of a Leapion laser

    • The output continuous laser is to make the cutting section smoothest.

    • The laser cutting head does not contact with the surface of the material and no damage to the workpiece.

    • Can cut non-metallic materials and has a wide cutting range.

    • No need for molds, saving production costs.

  • Fiber laser marking machine, with the good beam quality. Its output center is 1064nm, the whole machine life is longer about 100,000 hours, compared with other types of laser markers. The electro-optical conversion efficiency is more than 28%, relative 2%-10% conversion efficiency of other types of laser marking machine. Besides that it has outstanding performance in energy saving and environmental protection.

    Advantages of a Leapion laser

    • Can process a variety of metal, non-metallic materials.

    • Belonging to non-contact processing, no damage to the product, no tool wear, good marking quality.

    • Thin laser beam is thin, small processing material consumption and the processing heat affected zone.

    • High processing efficiency, computer control, easy to automate

LASER Product Recommendations

The data are for reference only


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Characteristics of carbon fiber special fiber laser cutting machine

This fiber laser cutting machine is a special cutting tool for the metal advertising industry. 

Stable work bench and long service life. 

Easy to maintain, smooth cutting surface, no burrs, saving time and effort. 

The machine is economic and competitive.

When the laser cuts carbon steel, the workpiece has burrs

Generally, the workpiece is burred. Possible reasons include:

(1)The laser focus position is offset, and the focus position test is performed, and the offset is adjusted according to the offset of the laser focus; 

(2)The output power of the laser is not enough. It is necessary to check whether the work of the laser generator is normal. If it is normal, observe whether the output value of the laser control button is correct, if it is not adjusted properly; 

(3)The cutting line speed is too slow, and it is necessary to increase the line speed during operation control;

(4)The cutting gas is not pure enough to provide high quality cutting working gas; 

(5)The instability of the machine tool running time is too long. At this time, it needs to be shut down and restarted.

The laser is not completely cut

The reason why the laser is not completely cut:

(1)The selection of the laser nozzle does not match the thickness of the processing plate, and the nozzle or processing plate is replaced; 

(2)The laser cutting line speed is too fast, and the operation control is required to reduce the line speed.

Abnormal sparks occur when cutting low carbon steel

Color change on the material guarantees highest legibility. Laser marking with color change is basically an electrical process, which reorders the macromolecules (by changing the direction). When the low carbon steel is cut normally, the fire bouquet is long, flat, and has fewer splits. The occurrence of abnormal sparks will affect the smoothness and quality of the cut section of the workpiece. 

In this case, if other parameters are normal, the following should be considered: 

(1) The laser head nozzle has serious loss, and the nozzle should be replaced in time; 

(2) In the case of no new nozzle replacement, the working gas pressure should be increased; 

(3) If the thread at the joint between the nozzle and the laser head is loose, the cutting should be suspended immediately, check the connection state of the laser head, and re-thread the thread.

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