Insufficient marking depth of laser marking machines is a common problem, which is usually related to factors such as laser power, speed, and focal length. The following are specific solutions:
1. Increase laser power
Reason: Insufficient laser power will cause the laser energy to fail to effectively penetrate the material, resulting in insufficient marking depth.
Solution: Increase the laser power so that the laser energy can be engraved deeper into the material. This can be achieved by adjusting the power parameters in the control software.
2. Slow down the marking speed
Reason: Too fast marking speed will reduce the contact time between the laser and the material, resulting in the laser failing to fully act on the material surface.
Solution: Reduce the marking speed so that the laser stays on the material longer, thereby increasing the marking depth. Proper speed adjustment can ensure that the laser has enough time to penetrate the material.
3. Adjust the focal length
Reason: Incorrect focal length setting will cause the laser focus to fail to focus accurately on the material surface, thus affecting the marking depth.
Solution: Recalibrate the focal length to ensure that the laser focus is concentrated on the material surface or slightly deeper into the material. This will enhance the energy density of the laser and increase the marking depth.
4. Increase the number of repetitions
Cause: A single scan may not achieve the desired depth, especially on harder or thicker materials.
Solution: Increase the number of repetitions of the marking so that the laser acts on the same location multiple times to gradually deepen the marking depth. After each scan, the laser will further carve into the material, increasing the depth.
5. Use the right auxiliary gas
Cause: Lack of the right auxiliary gas (such as oxygen or nitrogen) can lead to reduced marking efficiency, especially when cutting or marking metal materials.
Solution: Use the right auxiliary gas depending on the type of material. This can improve the energy efficiency of the laser and help increase the marking depth in some cases.
6. Check and clean the optics
Cause: Dust or contaminants on the lens or other optical components can affect the energy transfer of the laser, resulting in insufficient marking depth.
Solution: Clean the optics regularly to ensure that the transmission path of the laser beam is clear and unobstructed. Replace worn or damaged lenses when necessary.
7. Change the material or improve the surface treatment of the material
Cause: Some materials may be naturally difficult to mark, or the surface of the material may have coatings, oxides, etc. that hinder laser penetration.
Solution: If possible, choose a material that is more suitable for laser marking, or perform surface treatment first, such as removing the oxide layer or coating, to improve the marking effect.
The above steps can effectively solve the problem of insufficient laser marking depth. If the problem persists, it is recommended to contact the equipment supplier or technical support team for further assistance.
Post time: Oct-28-2024
