Annealing marking is an oxidation process used on carbon containing metals by applying heat through laser on the surface of any metal. Annealing marking generally gives a black mark with a smooth finish, but color may vary from brown, red, green etc. depending upon the heat used for marking.
Some key points of annealing:
Used on carbon-containing metals such as Titanium, Steel, Stainless Steel, Iron
Oxidation process can result in a variety of colors
A slower, more drawn-out process
Common in the medical industry applications such as internal tracking and branding.
2: Carbon Migration Laser Marking
Carbon migration is another type of laser marking in which a metal or metal alloy is heated, causing metal to chemically bond with its carbon molecules. This bonding brings the carbon properties to the surface of your material. When this occurs, it will often result in a dark laser marking that can even be black. This type of marking is a faster process than annealing because it provides a high amount of heat to a smaller area within a more rapid time period.
Some of the key-points of carbon migration laser marking:
Only metals and its alloys containing carbon such as Steel, Stainless Steel, Carbide, Titanium can utilize this marking
Heating process migrate carbon to the surface
Produces dark markings
Heat is applied rapidly.
3: Foaming Laser Marking
Foaming is a laser marking technique used only on polymers. Laser foaming is carried out by creating a molten burn on the surface. The molten surface creates an atmosphere of foaming gas bubbles. Foam laser marking is usually carried on a polymer which results in a light color.
Some of the key-points of Foaming Laser Marking:
Used only on polymers
Produces light & smooth markings
Material is melted, creating foam and gas bubbles
4: Coloration Laser Marking
Coloration laser marking is the process of adding color to a polymer or metal by controlling laser and scanner parameter such as pulse frequency, pulse width, power, speed and more. Coloration on polymer occurs by foaming process while it occurs via oxidation in metals.
Some of the key-points of Coloration Laser Marking:
Can be utilized for both metals and plastics
The process for coloration varies, depending on your material
Creates contrast in both colored and black and white materials
Color results are based on an oxidation process
Markolaser is a global supplier of excellent European laser marking machine systems. All our laser marking machine are built with European laser marking machine building technology. The heart of laser marking machines is laser marking machine generator which we import from Europe and the Galvos used in all our laser marking machines are from Germany. However, this does not mean that Markolaser laser marking machines are expensive. Our laser marking machines are built with best price and quality in mind. Markolaser laser marking machine is high quality at very reasonable cost.