Troubleshooting fiber optic laser cutting problems requires a systematic approach to identify and address issues efficiently. Here are some important considerations and guidelines to follow:

 

Temporization / Waiting Time
Ensure that the waiting time is set to "0" to minimize the time the laser head stays on top of the piercing point. This helps prevent excessive heat build-up and potential damage to the protective film.

Pre-cut Process
Verify if the machine has a pre-cut program, and if so, assess its impact on the laser protective film. Adjust or avoid using it if it negatively affects the film.

Aged Nozzle
Regularly check and replace the nozzle based on the number of starts of the laser, not just the cutting hours. An aged or worn nozzle can lead to inconsistent cutting results.

Nozzle Diameter
Consider increasing the nozzle diameter, as this can reduce the impact on the protected surface. A larger hole disperses gas more evenly, minimizing the risk of damaging the protective film.

Pressure of Gas
Use the recommended pressure of gas for the specific thickness of the material being cut. Avoid excessive pressure, as it can lead to unnecessary stress on the protective film and compromise the cutting quality.

Cutting Speed
Follow the machine software's recommended cutting speed, especially when dealing with angles, curves, or intricate designs. Avoid lowering the speed arbitrarily, as it can adversely affect the behavior of the protective film during cutting phases with lower speeds.