Narrow slit and small deformation of workpiece

- Jul 17, 2020-

The laser beam is focused into a small light spot, which makes the focus reach a high power density. At this time, the heat input by the beam far exceeds the part reflected, conducted or diffused by the material, and the material is quickly heated to the extent of vaporization, and then evaporates to form holes. With the relative linear movement of the beam and the material, the hole continuously forms a narrow slit. The thermal effect of trimming is very small, and there is no workpiece deformation.