How Is Laser Marking Depth Adjusted? (Parameter and Application Guide)
Laser marking depth is a critical parameter in terms of the permanence and readability of the application. Different marking types such as surface marking, annealing, and deep engraving are achieved through the correct combination of parameters such as laser power, speed, frequency, and number of passes. Fiber laser systems are especially widely used for deep marking on metal surfaces. This guide explains in detail how laser marking depth is adjusted, which parameters are effective, and the ideal settings for different applications.
Parameters Affecting Laser Marking Depth
Laser power
Higher laser power provides deeper marking.
Marking speed
Lower speed provides more energy transfer and increases depth.
Frequency (kHz)
Frequency settings affect surface interaction and energy distribution.
Number of passes
Depth can be increased by making multiple passes.
Focus setting
The correct focal point provides maximum energy density.
Hatch (fill spacing)
Fill density determines the effect on the surface.
Laser type
Fiber laser is the most suitable technology for deep engraving.
Material type
Different metals produce different depth results.
Surface coating
On coated surfaces, the coating is removed first.
Cooling and heat dissipation
Heat buildup may affect surface quality.
Depth Adjustment According to Different Marking Types
Surface marking
Surface-level marking is performed with low power and high speed.
Annealing
Colored and subsurface marking is performed on stainless steel.
Deep engraving
Deep marking is performed with high power and low speed.
DataMatrix marking
Controlled depth is required for readability.
QR code marking
Optimal depth should be achieved without surface deformation.
Metal surface applications
Depth control can be achieved with fiber laser.
Inline production
The balance between speed and depth should be optimized.
Camera verification
Code readability depends on depth.
Parameter optimization
All parameters should be evaluated together.
Venox solution recommendation
We determine the most accurate depth setting through sample tests.
How can laser marking depth be increased?
By increasing power and reducing speed.
Why is the number of passes important?
More passes produce a deeper result.
Can fiber laser perform deep engraving?
Yes, it is possible with high power.
What is surface marking?
It is light marking performed on the surface.
What is annealing?
It is marking through subsurface color change.
Is depth important for DataMatrix?
Yes, it is critical for readability.
Why is focus setting important?
It determines energy density.
Can depth be adjusted in inline production?
Yes, through parameter optimization.
Are sample tests necessary?
Yes, they are recommended for the best result.
How is the correct setting made?
It is determined through testing and optimization.
