Temperature Compensation Parameters for Laser Marking

This article will teach you how to set the temperature compensation parameters for your laser marking system, so that you can solve the problem of inconsistent marking results caused by temperature changes.This book covers topics such as temperature compensation, parameter adjustment, and testing and optimization, and is suitable for operators who want to improve the precision of their marking.Keywords: laser marking temperature compensation, parameter setting instructions, temperature adjustment techniques.

Why is temperature compensation necessary?

When a laser marking machine is operating, the temperature of the environment or heat emitted by the machine itself can cause the power of the laser to fluctuate.For example, the lines on a label might become fainter when the temperature in the workshop is high, or there might be excessive burning when temperatures are low.This is when the temperature compensation function can automatically adjust the power to make the marking effect more stable.

Temperature Compensation Parameter Setting.

Step 1: Confirm that your computer supports the necessary functions.

First, look at the equipment manual to see if your laser engraving machine has a temperature sensor and compensation module.Older models may require additional installation, but most new models come equipped with the feature.

Step two: Basic parameter calibration.

The first step is to find a stable environment (such as a room with a constant temperature of 25 degrees Celsius) and test the marking on a common material (such as stainless steel or ABS plastic).The laser power and speed parameters are recorded as a baseline.

Step Three: Set up compensation coefficients.

In the control software for the equipment, you can find the temperature compensation option, which usually displays a temperature-power curve.According to the characteristics of the material, power is adjusted 0.5-1.5 % for every 1 ℃ increase or decrease.For example, when processing metals, a 1 % allowance is set aside, and for plastics, an allowance of 0.8 % or less is suggested.

The skills of debugging.

Stage testing.

Don't try to get it right the first time. Start with a 10 ° C range. In the summer, raise the temperature 5 ° C to simulate the heat, and observe the depth of the mark. Do the same in the winter.After three or five iterations, the parameters that work best are determined.

Dealing with materials.

Different materials have very different thermal properties.Aluminum alloy and fiberglass may have compensation factors that differ by a factor of two or more even at the same temperature.He suggests that a database of such parameters be established.

Responding to unexpected events.

If the air conditioning fails or if the equipment works continuously for more than eight hours, the system can automatically switch to "dynamic compensation" mode.This function automatically tests the temperature every 30 seconds, making it more flexible than a fixed parameter.

Frequently Asked Questions.

Compensation leads to worse results?

The sensor may be in the wrong place. Check whether the sensor is close to the heat source of the laser, or whether it has been blown on by a cooling fan.

What happens if the parameters are not preserved?

Try restarting the control software, and make sure that the configuration file is not set to "read only.Some older systems have problems with Chinese file names, and can be fixed by changing the names to English.

Does it need to be regularly calibrated?

If the temperature in the workshop is well controlled, then once every six months will do.But if you are constantly moving in and out of areas with large temperature differentials (such as outdoor construction sites), it is best to do a quick calibration once a month.