Fiber Laser annealing creates a permament mark induced by heat without removing or compromising the material. Annealing is used with all metals containing carbon which shows a color change when exposed to heat, especially stainless steel.?

The annealing process offers significant advantages when marking already finished surfaces. The marking speed is slower compared to engraving because annealing relies solely on thermal effects of bringing the carbon in the steel to the surface.

Click on image to enlarge