Common Errors and Solutions for Laser Marking Machine Frequency Settings

If the frequency is not set properly, the results of the marking process can be unclear, and efficiency will fall.The company will provide practical solutions to common problems such as incorrect settings of parameters and ignoring the characteristics of the material being marked, helping users optimize equipment performance and improve marking quality.

Why does the frequency setting affect the marking effect?

The frequency parameter of the laser marking machine directly determines the working rhythm of the laser pulse.If the frequency is too high or too low, the results will be "wrecked" --either the surface of the material will be burned or the markings will be discontinuous.In actual practice, many old hands fall into one of these traps.

The most common mistake is to set the parameters "too high.

The material may be burned too much or etched too deeply.

Some users, in order to speed up the process, turn the frequency control to the highest setting.The result was a black carbonized mark on the metal surface, and the acrylic was even melted through.Don't adjust the settings in a rush, but instead first try reducing the frequency to below 20 kHz and simultaneously lowering the power.

The equipment heated up and broke down.

If the computer gets too hot after half an hour of continuous high-frequency work, check to see if the cooling fan is clogged with dust.If necessary, you can open the side cover and clean the heat sink with compressed air. Remember to unplug the unit first!

Low-frequency problem: The lines of the label look like "dotted lines.

The edges of the printed characters are rough.

If this happens to you, it is probably because you have set the frequency too low (for example, below 5 kHz).I suggest that you first adjust the frequency range to between 10 and 15 kHz, and at the same time reduce the scanning speed by 20 %.If the result is still poor, try selecting the "dual fill" option.

The white marks on stainless steel are not very obvious.

When marking metals, if the frequency is less than 7 kHz, the oxidation reaction is insufficient, resulting in a white mark.At that point, the frequency needs to be raised to the 8-12 kHz range, and the power output needs to be around 60 %, for an immediate effect.

The best way to fix a problem is to follow the rule of three looks and one test.

1. **Material** The ideal frequency range for metal is 8-20 kHz, and for plastic 5-15 kHz.

2. Look at speed: For every 0.5 m / s increase in scanning speed, the frequency must increase by 2-3 kHz.

3. **Check the effect**: If there is double vision, lower the frequency. If the lines break up, raise the frequency.

4. Test parameters: Each time, adjust only one parameter and keep careful records to compare results.

Finally, if you encounter a complex design, you can divide it into sections and set each section to a different frequency.For example, the high frequency of the laser can be used to ensure the clarity of the outline of the logo, while the low frequency can be used for large areas to prevent overheating. In this way, both quality and the lifespan of the equipment are guaranteed.