Laser Etching Services
A modified form of laser engraving, laser etching uses the heat from the laser beam to melt the surface of the material, which expands to leave a raised mark. The laser etching process creates markings with a shallower depth than laser engraving, typically 0.001” or less. Because it changes the surface finish of the material, laser etching also alters its reflectivity and enhances the contrast of the design.
Like laser marking and engraving, this process can be used to add a variety of markings, from lettering to serial numbers to bar codes and more. Laser etching is used by industries including medical device manufacturing, automotive manufacturing, metal casting, and several others that require reliable methods for product tracking and to adhere with federal or industry regulations for product identification.
Laser etching benefits include:
- Non-contact marking reduces the risk of surface damage
- Highly accurate and repeatable markings provide consistency
- Permanent marking that resists fading and wear
- Compatible with metal, wood, glass, polymers and ceramics, including adonized surfaces
- Chemical-free and environmentally friendly
Laser Etching Services for Permanent Product Identification
Laser etching produces shallow markings, making the method compatible with thin or delicate materials. It can also be used on surfaces that are anodized or plated. We use high speed, state-of-the-art laser etching processes to deliver consistency and high quality. All laser etching is completed using high powered YAG, green or UV lasers depending on the application and equipment being used.
The team at Arrow Cryogenics has experience working with a variety of materials and provides several laser etching and marking options to meet your requirements, including:
- Foaming: Foaming is only possible on certain plastics. The laser melts the plastic locally, creating gas bubbles in the material. As it cools, these gas bubbles are encapsulated in the material. A raised surface is then formed, creating the marking.
- Laser Annealing: The surface of the material is locally heated to form a very thin oxide layer. Different colors can be created depending on the power that is applied to the laser.
- Material Removal: Coated materials can be marked by removing the top layer with a laser. The anodized layer on aluminum is often removed to produce a clear, clean mark.
- Change in Color or Bleaching: This process is most commonly performed on plastics. The structure of the individual molecules or additives, such as color pigments, are directly changed or removed through laser marking. A change in color or bleaching is then visible on the material, creating a mark.