1, The basic relationship between laser marking machine power and depth
In the laser marking process, the laser power has a direct relationship with the marking depth. Generally speaking, under the same conditions, the higher the laser power, the deeper the marking depth. This is because the laser power directly determines the energy density of the laser beam, higher power means that the energy per unit area is greater, and can have a deeper effect on the material.
2, The embodiment of different materials
Metallic materials
For metallic materials, such as stainless steel, higher laser power helps to achieve deeper marking effects. For example, 20W laser marking machine at full capacity (speed adjusted to 100, power adjusted to 100, frequency adjusted to 50), can be marked on the surface of stainless steel material deeper, but may appear yellowing and blackening phenomenon, thin stainless steel plate may also be deformed; and if the speed is adjusted to 300, the power is adjusted to 90, the frequency is adjusted to 30, hit out of the depth of basically will not be deformed, and there will be no Burning situation
Plastic materials
In plastic materials, although the fibre laser marking machine power enhancement can also increase the marking depth, but compared to metal materials, its depth effect may not be particularly ideal. If the use of fibre laser marking machine to play plastic, want to play deep can be appropriate to enhance the power, such as the marking machine power to 15 (speed to 1500, frequency default), if you still need to play deep can continue to enhance the power.
3, Too much power may bring problems
Although the increase in power helps to increase the marking depth, but too much power will also bring some negative effects.
Damage to the material: may lead to excessive ablation or melting of the surface of the material, affecting the integrity and appearance of the material, especially in the case of high precision requirements, the need to maintain the quality of the surface of the material, this effect is more obvious1.
Impact on marking quality: for example, when marking patterns or text that require high precision and clarity, excessive power may damage the accuracy and clarity of the marking, leading to a reduction in marking quality.