Optimization of Laser Parameters for Marking of Metals

The course explains the logic behind setting the core parameters of power, frequency, and speed for laser marking metal. It also provides practical tips for working with common materials like aluminum alloys and stainless steel, and it shares optimization methods such as gradient testing and layer-by-layer marking.The system also helps users adjust parameters according to the performance of their equipment and the characteristics of the material they are working with, solving problems like white marks and blurry engravings, and improving the efficiency of marking and finished product quality.

These are the core parameters of laser marking.

The quality of the laser marking machine's work depends on its settings.Power, frequency and speed are the three key parameters of the laser, and they directly influence the depth and clarity of the marking.For example, for hard metals such as stainless steel, the power output should be set at 30 %, the frequency at about 20 kHz, and the speed at no more than 800 mm / s.If it turns black or burns, it is probably because the power is too high. Turn it down by 5 % and try again.

The techniques of working with different metals.

How do you stop aluminum from turning white?

The surface of aluminum alloys is prone to oxidation, and it is common for the surface to turn white after marking.At this point, we increase the frequency to 50 kHz, and decrease the speed to 500 mm / s, while also keeping the power below 25 %. You will find that the color of the mark is more uniform, and the quality has increased by a grade.

How can stainless steel be made to stay clear?

If the marking is to withstand the test of time, the space between the lines must be less than 0.02 mm.When you have finished marking, wipe the surface with alcohol to remove any oxidized material. The pattern will remain clear for ten years.

Optimizing parameters.

The biggest problem for beginners is to blindly follow other people's parameter tables.Every machine has different capabilities, and the thickness of the material is also different, so I recommend using scrap material to do a test run.For example, starting at 20 % power, each time adding 5 %, a set is struck. The effectiveness is compared, and the final parameters are determined.When dealing with complex shapes, don't be lazy and use only one parameter. If you separate the outline from the fill, the quality will be much better.

(Elaine Chen / photos by Chung Yung-ho / tr. by Jonathan Barnard)

In response to the need to laser mark metal materials, he explains the logic of setting core parameters such as power, frequency, and speed, and he shares practical techniques for working with common materials such as aluminum alloy and stainless steel.We help our customers adjust parameters flexibly, based on the performance of the equipment and the characteristics of the materials, to solve problems such as the appearance of white spots or blurry marks, and thereby improve marking efficiency and the quality of the finished products.

This is a question that has puzzled many people.