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How does a laser marking machine's beam quality affect the marking effect?
Release time:
2025-09-26
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Beam quality includes beam diameter, beam focus, beam centroid, and beam peak power. During the marking process, beam quality directly affects the quality, speed, and stability of the marking. The following will discuss in detail the impact of beam quality on the marking effect.
How does a laser marking machine's beam quality affect the marking effect?
The beam quality of a laser marking machine has a significant impact on the marking effect.
Beam quality includes beam diameter, beam focus, beam centroid, and beam peak power. During the marking process, beam quality directly affects the quality, speed, and stability of the marking. The following will discuss in detail the impact of beam quality on the marking effect.
Beam diameter has a significant impact on the marking effect.
Beam diameter determines the beam's focus. The smaller the diameter, the higher the focus, and the more energy is concentrated into a smaller area. Therefore, the smaller the beam diameter, the finer the marked lines and patterns, and the higher the resolution. In applications requiring fine marking and fine graduations, a laser marking machine with a smaller beam diameter is required to achieve higher precision and clearer markings.
Beam focus also has a significant impact on the marking effect.
Focus refers to the ability of a beam to converge to a single point, affecting the concentration and distribution of energy. During the marking process, a beam with a high focus can better concentrate energy, resulting in a more pronounced and deeper mark. A poorly focused beam is prone to scattering and divergence, resulting in blurred or uneven marking. Therefore, for optimal marking results, a laser marking machine with a higher focus is required.
In addition, the beam's centroid also has a certain impact on marking quality.
The centroid is the center of the beam's cross section. When the beam's centroid is parallel to the surface of the object being marked, the marking effect is optimal. If the beam's centroid is at an angle to the surface, the beam energy will be partially reflected, causing unwanted burns and residue in the marked area. Therefore, during the marking process, care should be taken to adjust the beam's centroid parallel to the surface of the object being marked for optimal marking results.
The peak power of the beam also affects the marking effect.
Peak power refers to the peak energy in the laser pulse and determines the force with which the laser impacts the surface. A higher peak power effectively converts light energy into heat energy in a shorter time, resulting in fast and deep engraving. A lower peak power may result in less noticeable marking or require longer marking times. Therefore, when selecting a laser marking machine, it's important to choose the appropriate peak power based on the specific application requirements to achieve optimal marking results.
In summary
The beam quality of a laser marking machine significantly impacts the marking effect. Beam diameter and focus determine the mark's fineness and resolution, the center of mass determines the mark's consistency and uniformity, and the peak power determines the mark's depth and speed. Therefore, when using a laser marking machine for marking, it's important to fully consider the impact of beam quality and select the appropriate laser marking machine and parameters to achieve optimal marking results.
Key words:
laser marking machine
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