How to solve molten metal on the surface of the material during the perforation process ?

When oxygen is used as the auxiliary gas of the laser cutting machine, the molten metal will be oxidized during the perforation process, and whiskers will not be formed,

and the adhesion with the surface of the stainless steel material is not strong. When nitrogen is used as the auxiliary gas, the molten metal will not be oxidized.

At this time, the viscosity of the molten metal is low, and it will expand into a desired shape. Moreover, due to the strong adhesion between the molten metal and the surface of the material,

the molten metal will be in the small hole. stacked around. How does the laser cutting machine prevent the splashing and sticking of molten metal?


First, reduce the amount of production Adjusting the perforation conditions, increasing the frequency and reducing the output power of a single pulse will effectively reduce the amount of melting. The molten metal ejected from the perforated hole is blown away by auxiliary gas or side blowing gas.

Second, to prevent adhesion Applying a separator on the surface of the material can also prevent the adhesion of molten metal. When there is a separator on the surface of the material, the molten metal produced in the perforation will accumulate on the separator and not directly adhere to the surface of the material. The separator can use a slag inhibitor or a surfactant that is easy to handle later.

Third, there are two ways to remove whisker-like burrs. One is to cut a small round hole near the perforation hole, and cut the molten metal together when cutting the round hole; the other is to put the focus position upward after perforation. moving, remelting the deposits and blowing them away with gas.