Aluminum laser marking

For aluminum engraving needs, laser engraving machines and systems can generate a wide range of grays (from white to black) on the surface of aluminum parts.

Common applications include:

  • etching aluminum
  • marking serial numbers on aluminum billets
  • engraving QR or data matrix codes on sows, ingots or die-cast parts
  • etching logos on aluminum sheets or pieces
  • marking anodized aluminum by selectively removing its coating
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Why laser etch aluminum?

Fast and reliable technology

Laser etching allows the efficient and high-speed marking of identifiers on aluminum surfaces. This is true even in harsh industrial environments where the material temperature is above 500 degrees Celsius.

Robust and permanent markings

Laser etching on aluminum surfaces can withstand high temperature annealing and e-coating. Laser engraved marks can even resist to post treatments like shotblasting.

Low maintenance, no consumables

Thanks to fiber laser technology, laser etching machines are very low maintenance and consumable free.

Repeatable high contrasts marks

Laser engraving aluminum generates high-contrast marks through an optimized process. Black marks on white backgrounds are easy to scan with standard barcode readers.

Understanding Laser Etching of Aluminum

Aluminum is one of the most common materials in modern manufacturing. You can use industrial marking systems to engrave unique identifiers directly on aluminum pieces. 

Laser etching of aluminum is an efficient, high-speed process during which laser radiation modifies the micro surface of the metal. Regardless of your application requirements, there’s a laser marking process that fits your needs.

Our products generate different gray levels (from white to black). Blackened and whitened surfaces don’t scatter light the same way.

The whitening is created using a surface texturing of small amplitude, which results in diffuse reflection.

The blackening is created by a surface texturing of greater amplitude. This increases absorption of the light that hits the material.

Understanding Laser Marking of Anodized Aluminum

Laser marking anodized aluminum is a selective process known as laser ablation. The laser beam only removes the anodized layer from the aluminum piece, resulting in high-quality marks.

The color of the mark is highly contrasted between the anodized aluminum and the laser induced mark. To laser mark aluminum, you should use a fiber laser system (not a CO2 laser system).

Laser marking aluminum can also be used to modify the surface finish of an entire part. For example, you could remove extrusion lines that are still apparent after the anodization process.

Do you need additional information about laser etching aluminum?

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Types of Laser Solutions


3D Autofocus Fiber Laser With Imaging Scanner (LXQ 3D Vision)

3D Autofocus Fiber Laser With Imaging Scanner (LXQ 3D Vision)

With the patent pending LXQ 3D Vision, Laserax offers the first adaptative traceability laser engraver. You get the joint benefits of laser engraving and 3D imaging.

LXQ 3D Vision

3D Focus Fiber Laser Marking System (LXQ 3D)

3D Focus Fiber Laser Marking System (LXQ 3D)

This 3-axis fiber laser system permits industrial laser marking on various part geometries. Metal engraving machines that use this system will perform fast and reliable laser etching on various part geometries.


2D Fiber Laser Marking System (LXQ)

2D Fiber Laser Marking System (LXQ)

The LXQ series offers the most efficient and reliable industrial laser marking machines on the market. They’re certified for the IP67 class protection, and offer a laser power of up to a 100 W.


Industrial IP66 Turnkey Laser Marking System

Industrial IP66 Turnkey Laser Marking System

This integrated version of our fiber laser marking systems is ideal for projects requiring limited integration efforts. Its IP66 protection class and vortex cooled system is adapted to all work environments. We want to ensure the seamless integration with your PLC brand and communication protocols. This is why the system’s configuration is done on a custom basis.


Do you have an aluminum marking application?

Our experts will guide you combining a laser system with a laser machine.