The popularity of laser marking is increasing. Both industrial regulations and government protocols now ensure the continued employment of laser marking machines to provide permanent marks upon components, therefore identifying their source or manufacturer. Yet, what exactly is laser marking? Are there different types?
What Is Laser Marking?
Laser marking is the result of the interaction between a laser light beam and the surface of a material. This can be metal or even plastic. The intent is to provide each component with a specific code. This will identify it to manufacturers, packagers and other companies as well as customers. It will confirm the identity of the manufacturer – therefore indicating its authenticity.
Industries utilize laser marking to provide different forms of identification including:
- Bar codes
- Unique Identification (UID) codes
- Quick Response (QR) codes
- Logos
The entire process is accomplished without negatively affecting the surface of the component’s material. The machines
Four Common Types of Laser Markings
Laser marking machines can produce one of four types of common markings. These are:
- Annealing: This generally slow process produces a smoothly finished black mark. Effective for application on titanium, steel and stainless steel, it is common for medical devices
- Carbon migration: This process is faster than annealing but is only effective with those carbon-containing metals. It is common in the aerospace field
- Foaming: For use with plastics only
- Coloration: Can apply on both metals and plastics. Is one of the most diverse and colorful types
Laser Marking Machines
Increased regulations and requirements by the FDA, the military and the automotive industry have increased the need for reducing flaws in production while tracing materials and goods back to their source. One of the best means of accomplishing this is through laser engraving. Machines capable of providing this service are readily available and come in different types, sizes and capabilities. These characteristics will help you determine which type is more suitable for your company’s production requirements.
