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 machine 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. 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
machine accessories 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.
