Corte a laser de placas de ferro enferrujadas: dicas e técnicas

Laser cutting of rusty iron plates: tips and techniques

We all know that laser cutting machines are excellent tools for processing sheet metal, cutting through iron like mud. In the actual production process, we often find that processing materials may be rusty, especially in the south where it is humid, and materials such as carbon steel and iron sheets are prone to rust.

Can a laser cutting machine cut rusty iron plates? What should we pay attention to when cutting rusty materials with a laser cutting machine?

What should we pay attention to when cutting rusty materials with a laser cutting machine?

First, we need to analyze the cutting principle of the laser cutting machine. The laser itself cannot be a light source; generates heat only after being absorbed by the surface of the metal sheet. Laser absorption is different on surfaces with or without rust, and heat generation will be greatly affected.

Generally, cutting rusty plates will have the following impacts:

  • The cutting efficiency of rusty sheets will be reduced, the results will be worse, and the scrap rate will be higher. If possible, it is better to use fewer rusty plates or treat rusty plates before use.
  • In fact, the most damage occurs when holes are drilled and cut, contaminating the lens. You can use a grinder to remove the rust before cutting. If the sheet is not thick, the impact on sheets below 5mm is not significant, but the quality of the cut product will be affected, resulting in a higher rejection rate.
  • Cutting boards with uniform rust will produce better results than cutting boards with uneven rust. This is because plates with uniform rust absorb the laser evenly, allowing for better cutting. To process materials with uneven rust on the surface, the surface condition of the material must be leveled before cutting.

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