In marking metal and plastic,There is a setting parameter range
for reference to test ,Speed 100-2000 adjustable,Power 30-80
adjustable,Frequency 5-30. Depends on different materials and the marking
effects you want so for a new operator may need conduct dozens of trials to
know the ideal marking parameters for each material and even some experienced
engineers have to try several times.
Here have a brief introduction
about laser marking frequency,power,speed and the hatch function . These
four settings will affect the marking result in order to get a good laser
marking result we need to adjust the speed power and frequency.
1.) In laser marking
machine,Marking frequency stands for the times of laser pulse per
unit time is called the marking frequency.It is easy to understand.For
example, When the value of marking frequency is high, the laser spot is
dense ,on the contrary if the marking frequency value is low then the
laser spot is parse.
Although the laser spot can not be
seen by the naked eye,we can see it when we put the marking workpiece under the
electron microscope.The continuous line we see by eyes turns out that is
composed by many laser spots.The high value we set at marking frequency,the
denser laser spot we get and more smoothness we will get on the marking
workpiece.
2.) Marking
speed refers to the moving speed of the laser
cutting machine. Here this speed is the speed that can be adjusted in
the parameters for marking.The overall marking time is not only
affected by marking speed,but also by the marking depth, marking area
and other factors. The higher speed you set,The faster marking speed
you get.
Fast marking speed means less
laser hitting times in the same marking place. Slow speed is more
conducive to deep marking . But it does not mean the slower speed you
set, the better depth you will get. It also depends on the
different materials and other relative parameters you set at.
If the marking speed is too
slow, the substance that burns by laser will accumulate on the
surface of the material, and affect the laser to engrave deeper. When you are
doing deep marking,It is better do a high speed marking after a few times of
low speed marking. In this way you will get better marking result.
3. ) Marking power, in the
parameter setting, the power is adjusted by percentage, and the output power
from 0% to 100% can be adjusted. Usually the default power is 50%.Higher laser
power you set,the stronger laser output energy you get and it is easier to
marking depth. You need to set the laser power according to
your actual requirement.Because the laser output energy is too strong,It will do
more affect to the material. As long as the laser power can reach your marking
expectations then no need to set very high laser power,otherwise long time high
power marking will do damage to the laser generator and affects its life span.
4.) “Hatch” is used to force
EZCAD to calculate the hatch fills for the current objects. The object to
be filled must be closed curve, and if you choose many objects to fill, these
figures can be objects nested mutually. Any two objects may not have
intersectant parts .Line Space setting is the most frequent tool we use,
line space is the space between two hatch lines .
The low value of line space result
in denser lines in the object and more marking content and slow marking speed.
You can try to set the line space at 0.05 .About the hatch type,
Bidirectional hatch offers most efficient marking speed.
5.) Finally it is the Pulse
width . Pulse width means the lasting time of one unit pulse . Common fiber laser
marking machine does not have this function to adjust the pulse width.
In MOPA laser marking machine, It has the function of adjusting the pulse width
and the main advantage is that it can mark black color or other color on
stainless steel.
