Laser Engraver & Precise Metal Engraving
Why Metal?
Metal engraving offers more possibilities for metal processing. Metal is a versatile engineering material valued for its strength, durability, and conductivity. Common industrial metals include steel, aluminum, titanium, and alloys like stainless steel. Metals can be cut, welded, formed, and joined in various ways. Besides, laser engraving is an advanced processing method. The focused high-energy laser beam can quickly and precisely melt or vaporize metal material along its path of the beam.
Meanwhile, it can also mark and etch permanent graphics and text onto metal surfaces for identification or decoration. Lasers provide contactless processing and allow for automation in metal fabrication. Overall, laser technology enables high precision and efficiency in metal engraving and marking applications.

Common Types of Laser Metal Engraving Machine
Fiber Laser Metal Engraving Machine
Fiber laser marking machines use ytterbium fiber lasers as the laser source. Fiber lasers typically operate between 100-1000W power, enabling both surface marking and simple cutting. Compared to CO2 lasers, fiber lasers have a shorter wavelength which can rapidly heat a small spot on metals to achieve finer marking effects. Fiber laser marking is fast with excellent beam quality and power transmission efficiency. Fiber lasers offer high precision and stability for industrial laser marking applications.
- We commonly process metals like aluminum, brass, stainless steel, and gold with fiber metal engraving machine.
- Brass is often used for high-resolution serial numbers, data matrix codes, and logos marking.
- Stainless steel is generally marked with fiber metal engraving machine, and special types of annealed stainless steel can be color marked.
- Gold, being a precious metal, is often used in jewelry or decorative items, and its soft texture allows for direct laser processing.
CO2 Laser Metal Engraving Machine
- We commonly process metals aluminum, brass, stainless steel, goldanodized aluminum and coated metal products with CO2 metal engraving machine.
- Anodized aluminum sheets form a dense oxide film on the surface. Depending on the color of the anodized layer, it can present significant contrast and beautiful, intricate engravings by laser marking.
- Metal Coatings can be accurately engraved by CO2 metal engraving machine, enabling various colors on the metal surface, providing strong contrast compared to the metal itself.
What are the Popular Metal Engraving Products?
Identification coding on steel products

Laser marking on automotive parts

Decorative marking on stainless steel

Nameplate marking on instruments

Where to Buy Metal?
Best Laser Engraver for Metal Engraving
As an ideal material for laser engraving, metal surface can be precisely melted or vaporized through laser metal engraving to create patterns with high accuracy. To leverage laser engraving for metals, a capable laser machine is needed.
Thunder Laser’s Aurora fiber laser series offers optimized solutions for metal engraving by integrating key capabilities such as sufficient power and excellent beam quality. Let’s examine this innovative laser series that enables businesses to harness the advantages of laser engraving on metal materials.
Thunder Aurora Marking Machine

Work Area
Type
Power
Z-axis
Thunder Nova Laser Cutter

Work Area
Type
Power
Z-axis
Best Laser Engraver for Metal Engraving
The results of metal engraving are greatly influenced by the wood material used. The table below provides recommended settings for using the Aurora8-50W laser engraver to process metal. You can do some testing first to fit the parameters for a particular use in metal engraving.
Material | Carving effect | Speed(mm/s) | Power(%) | Frequency(KHz) | passes | Hatch type |
304 stainless steel | black | 200 | 10 | 100 | 10 | bidirectional |
white | 1000 | 20 | 70 | 1 | ||
black | 100 | 10 | 50 | 1 | ||
white | 900 | 20 | 60 | 1 | ||
brass | black | 100 | 30 | 50 | 1 | |
white | 500 | 20 | 50 | 1 | ||
magnesium rod | black | 100 | 40 | 50 | 1 | |
white | 1000 | 28 | 75 | 1 |
The table below provides recommended settings for using the NOVA35-80W laser cutter to process metal.
Material | Carving effect | Speed(mm/s) | Max Power(%) | Air Pressure Value | DPI | |
anodized aluminum | engraving | 500 | 10 | 40 | 0.1 | 300 |
coated metals | 500 | 10 | 50 | 0.1 | 300 |
Tips and Tricks for Laser Processing Metal
Surface preparation is crucial for optimal metal engraving quality. Preprocessing removes contaminants, increases surface roughness to improve laser absorption, and eliminates burrs or passivation layers that may affect cut quality. Here are some common preparation techniques:
- Degreasing – Wipe with alcohol to ensure no oil residue.
- Abrasive finishing – Slightly roughen the surface with sandpaper.
- Wetting agents – Spray on an absorptive liquid coating.
- Deburring – Polish machined metal parts.
- Solvent cleaning – Use solvents to remove contaminants.
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