Many industries benefit from the use of fiber laser laser marking. The fiber laser marking process is especially valuable, where even colour marking can be applied to some metals.
What is laser color marking?
As the name suggests "laser color marking" is the use of a laser to add a mark, to Stainless steel which thermally alters the surface to give the appearance of a variety of colours to an object.
The laser marking process
The fiber laser beam is directed at the piece of metal in the area where the mark is required. The thermal heat from the laser beam alters the surface structure of the material, forming a permanent coloured mark to the exact shape required, as per the fiber laser programmed instructions.
By applying variations in the pulse width, the laser operator can control the amount of heat, which is being applied to the surface of Stainless Steel. By applying small changes to the pulse width and pulse frequency the oxide layer thickness can be varied. This creates discreet changes in the colour of the mark to the eye of the viewer.
For colour marking this is usually shallow as it's the colour that's important rather than depth. If deeper marking is required, this becomes an engraving, which can also be applied with colour.
