The Benefits of Using UV Laser Marking on Metal Surfaces


Author: Correct Pack - Laser Marking Machine Manufacturer

The use of lasers in metal marking and engraving has progressed from traditional CO2 and fiber lasers to ultraviolet (UV) lasers. UV laser marking is now becoming a popular industrial marking solution due to its unique advantages, including high preciseness, durability, versatility, and no-toxic residue.

In this article, we will discuss in detail the benefits of using UV laser marking technology on metal surfaces.

1. High preciseness

Laser marking, in general, is known for its high precision and accuracy. However, UV laser marking offers even greater precision, particularly for smaller or more intricate designs.

UV lasers have a wavelength of 355 nanometers, which is much shorter than the wavelengths of traditional CO2 and fiber lasers. This makes it possible to produce finer details with more precise edges and cleaner lines.

With this technology, you can easily engrave microcodes, logos, and other complex shapes on small areas of metal. This preciseness and accuracy are beneficial when marking electronics, microcircuits, and other miniature parts requiring permanent and legible marking.

2. Durability

UV laser marking creates marks that are resistant to fading, rubbing, or other forms of abrasion. The high energy of the UV laser generates intense heat that changes the surface of the metal, causing the mark to bond permanently to the surface.

Typically, UV laser marks on metals can resist high temperatures, chemicals, and other harsh environmental conditions. This means that the marks remain readable, even in unfriendly environments where other marking methods could fail.

3. Versatility

UV laser marking technology is versatile and can mark almost any metal, including stainless steel, aluminum, titanium, brass, copper, and gold. The type of metal being marked determines the quality of the marking.

This versatility makes the UV laser technology suitable for marking various industrial applications, such as automotive parts, medical devices, consumer electronics, aerospace components, and more.

4. No-toxic residue

UV laser marking produces clean marks with no toxic residue left behind, unlike traditional methods like etching and chemical engraving that require the use of harsh acid solutions.

This makes UV laser marking an eco-friendly alternative to other marking and engraving methods. Additionally, the absence of toxic residue makes it an ideal solution for medical devices, food packaging, and other applications where clean, non-toxic markings are essential.

5. No-contact marking

UV laser marking utilizes a beam of light, which requires no contact between the metal surface and the laser source. This means that there is no risk of damage to the components, which is beneficial in the electronics and semiconductor industries, where any physical contact can cause damage.

Additionally, no-contact marking eliminates the need for masking or protective coatings to prevent the metal surface from damage, making it a cost-effective solution.


UV laser marking offers unique benefits over traditional marking and engraving methods, providing precise, durable, versatile, eco-friendly, and no-contact marking solutions. These advantages make it a perfect choice for various industrial applications, including medical, automotive, aerospace, and more.

If you need to mark or engrave metal surfaces, consider using UV laser marking technology for long-lasting, high-quality, and precise markings.


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