Advanced laser marking systems for precious materials such as gold and silver.


Laser marking on gold and silver

Laser marking on gold and silver is a process that uses a laser beam to create a permanent engraving on the surface of these precious metals. This process is often used to mark gold and silver jewelry, coins, and other items with information such as the maker’s mark, serial number, or precious metal content.

Laser marking is a precise and non-invasive method that does not damage the metal surface. Additionally, it can create small font sizes and complex shapes with high resolution. However, it is important to note that laser marking can only be done on hard metals such as gold and silver, as soft metals may warp or melt under the heat generated by the laser.

To mark gold or silver with a laser, a fiber optic laser or a solid-state laser is used. The choice of the type of laser depends on the size of the object to be marked, the thickness of the metal and the marking quality requirements.

Once the laser has been set up, it is passed through a concentrating lens to focus the laser beam onto the metal surface. When the laser beam hits the metal, it creates a small incision on the surface. The depth and width of the engraving can be adjusted by changing the laser power and the exposure time to the beam

Can jewelery be engraved?

Yes, jewelry can be engraved using a variety of methods, including laser marking, hand scratching, engraving and embossing.

Laser marking is a precise, non-invasive method of engraving gold, silver and other hard metal jewelry. This process uses a laser beam to create a permanent engraving on the surface of the jewelry. Laser marking can create small characters and complex shapes with high resolution, but cannot be used on soft metals or precious stones.

Laser Engraving on Jewelry

Laser engraving on jewelry represents a significant qualitative leap compared to traditional methods of personalization, such as mechanical or chemical engraving. This advanced technique is used on a wide range of materials, including gold, silver, platinum, copper, bronze, titanium, aluminum, stainless steel, and also on glass and various coated metals.

How Laser Engraving on Jewelery works

Laser engraving on jewelery is based on the removal of a very thin part of the surface of the precious metal, thus creating a detailed and legible relief. The laser beam generates heat focused on the desired area, also causing discoloration which makes the marking more evident and clear. Thanks to the precision of the laser, it is possible to create intricate engravings on necklaces, bracelets and other jewelry creations, as well as the possibility of using laser technology for welding and assembling different pieces.

Advantages of Laser Engraving

One of the main advantages of laser engraving on jewelery is the extreme precision, which allows you to obtain refined and elegant results. This technique allows you to work on different materials, including complex engravings such as micro-markings, identification codes and detailed decorations. The laser marking is indelible and resistant to chemical and atmospheric agents, guaranteeing considerable durability over time. Operating costs are low, with fast processing times and almost zero material waste.

Laser Engraving on Diamonds

In the specific case of diamonds, laser engraving is used to guarantee the provenance and authenticity of the jewel. The engraving, invisible to the naked eye, acts as a guarantee certificate, certifying the value and origin of the diamond. This practice is recognized by global certifying bodies such as the Gemological Institute of America and the Hoge Raad voor Diamant.

Laser Applications and Technologies for Jewellery

The most advanced laser technologies cover a wide spectrum of powers and applications. These machines are suitable for both light machining and deep cuts and engravings on jewelery and precious metals, with the ability to perform high precision machining, including the use of self-recognition systems for the pieces to be marked.

Laser engraving on jewelery not only elevates the quality and aesthetics of the final products, but also offers greater efficiency and flexibility in processing, making it a privileged choice in the goldsmith and modern jewelery sector.