Can a CO2 Laser Engrave Metal?

Many people wonder if a CO2 laser can mark or engrave metal. The short answer is: sometimes, but it is not the best choice. Let’s talk about why.

1. Metal Absorption

A CO2 laser uses a certain wavelength that most metals do not absorb well. If the metal does not take in enough energy, you will not get a strong mark. Steel and iron might absorb a bit better, but many other metals reflect too much laser light.

2. Coatings and Painted Surfaces

Some metals have a coating, like paint or plastic. A CO2 laser can remove or mark that coating, revealing the metal underneath. This is handy if you only need surface designs. But it is not the same as engraving deep into the metal itself.

3. High Power Needs

A CO2 laser with very high power (like 300W) may cut or engrave thin metal. But this can be very expensive and not practical for most users. It works in large industrial settings but might not fit small shops or home studios.

4. Pulsed CO2 Laser

Some CO2 laser come in pulsed versions with high peak power. They send strong, short bursts of energy. If you do not mind spending more time on each project, you can mark certain metals with a smaller CO2 laser—something around 55W and a short lens. It can work, but it is often slow and requires careful tuning.

Why Jowuey?

At Jowuey, we focus on laser solutions that match your needs:

● co2 laser engravers and cutters for wood, acrylic, and other nonmetal materials.

● Fiber Laser Machine for metal marking and cutting.

Final Thought

Yes, a CO2 laser can mark metal in certain ways, especially if it is high-power. But if you need deep, clean marks on Aluminum, stainless steel, consider a fiber laser source. Contact us now.