The cutting principle of the metal laser cutting machine is to irradiate the workpiece with a focused high-power density laser beam to quickly melt, vaporize, ablate or reach the ignition point of the irradiated material. At the same time, it blows away the molten material with the aid of a high-speed airflow coaxial with the beam. In this way, the workpiece can be cut apart.
Galvanized sheet is a common material in daily production and processing. Galvanized sheet is coated with metallic zinc to prevent corrosion of the surface of the metal sheet and prolong its service life. It is mainly used in industries such as electrical enclosures and kitchenware manufacturing. As a special kind of sheet metal, can today’s sheet metal cutting sharp metal laser cutting machine be suitable for galvanized sheet?
Generally speaking, for galvanized sheet, laser cutting machine can cut it easily. In the process of processing galvanized sheet, auxiliary gas needs to be added. The purity and pressure of auxiliary gas will directly affect the quality of the cut sheet section and the oxygen used for cutting. The purity should be above 99.6%. The higher the purity of the oxygen used for cutting, the higher the roughness and quality of the cut galvanized sheet section. Of course, the cutting cost will also increase. The purity of nitrogen during cutting should be higher than 99.5. %. Increasing the purity of nitrogen ensures that the cut will not change color during the process of cutting the galvanized sheet.
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