Reasons for burrs on perforated metal sheets

The main reasons for burrs on perforated metal sheets are as follows:

**Dull Cutting Blade:** This directly leads to burrs. Because the cutting blade itself is not smooth, the cut marks left after passing over the perforated metal sheet surface are rough. Combined with environmental factors, this easily causes burrs to form on the surface.

**Punch Wear:** Wear on the punching part can also affect the surface of the product. Since the punch part has high quality requirements, if it wears, the punched area will inevitably also experience wear. Generally, this type of burr only applies to punch wear.

**Usage Environment:** During the use of perforated metal sheets, environmental factors can also cause burrs on the product surface. This generally occurs only in heavy industrial areas with relatively severe metal pollution. Polluted air, including splashed metal scrap and liquids, can all contribute to this condition, especially highly corrosive acidic substances.

Human Factors

Human factors can also cause this situation, generally referring only to individual habits. Human-induced scratching, including discarded scrap metal and stone on the surface, can cause severe burrs on the product. This situation stems from individual lifestyle habits. If properly stored, this situation will certainly not occur.