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Optical fiber laser marking is not uniform

by:J&D WATER     2020-03-31
Optical fiber laser marking uneven reasons: first, using partial JiaoBiao carved a range of content for each of the focus lens has a corresponding depth of focus, and adopted the practice of deviation focus can easily lead to a wide range of carving patterns, the edge in the depth of focus point or beyond the scope of depth of focus, so it is easy to cause the effect of inhomogeneity. Therefore, the method of partial JiaoBiao moment that laser energy must be considered. Second, the laser output spot obscured, that is, a laser beam after the galvanometer and field lens flare have short, not enough round head of laser output, fixed clamp and vibrating mirror is not set, lead to laser through some vibration lens flare obscured, after field lens focused on the frequency doubling piece of flare is a circle, this also is likely to lead to the effect is not uniform. Still have a kind of situation, namely the galvanometer deflection lens injury, when the laser beam through the lens damage area, can't reflect well. Therefore, the laser beam through the lens damage area is inconsistent with the lens no damage area of laser energy, in the ultimate role of laser energy is different also, so that the engraving effect is not uniform. Third, when the laser thermal lens phenomenon through the optical lens ( Refraction, reflection) When the lens fever causes slight deformation. This deformation can make the laser focus focus, shorter focal length. If the machine is fixed, adjust the distance to the focus, the laser after a period of time, made by a thermal lens effect on the material of the laser energy density changes, resulting in engraving effect is not uniform. Four, the machine is not set, the laser vibration lens or a mirror lens with parallel processing platform is not due to no levels, can lead to a laser beam through the field lens after reaches the extent of the inconsistency on the processing objects, the energy of the laser falls on the processing object will eventually have inconsistent energy density, at this point in the effect of heterogeneous materials. Five, the cause of the material, such as membrane on the surface of the material thickness is not consistent or physical and chemical properties change material to the laser energy response is sensitive. Usually under the same material, the laser energy to material damage threshold is certain. When the materials have different coating thickness, or some other physical and chemical treatment process is not uniform, will also cause the effect after the laser engraving is not uniform. Device. Laser marking equipment recommended: preferential deals offer 4007001618 【 Optical fiber laser marking equipment 】 Mainly used for metal and non-metallic laser marking part USES, tags and beautiful, fast, no material; 【 CO2 laser marking equipment 】 Non-metallic products used for the laser marking purposes; 【 Uv laser marking equipment 】 Adopt import uv laser, it is mainly used for metal and non-metallic products fine marking purposes; 【 Metal laser marking equipment 】 Based on customer specific products, production line, the demand for design and production and customer demand, customized models. More metal laser marking equipment, optical fiber laser marking laser marking
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