Laser Marking on Transparent Materials|Optimizing the Effects of Laser Marking Acrylic
Want to improve the transparency of laser engraved acrylic? Share practical tips that cover parameter adjustment, material pre-treatment and optimization of engraving processes.By adjusting the combination of laser power, frequency, and speed, and combining this with surface cleaning and coating techniques, the problems of yellowing and uneven light transmission are solved, and acrylic signs with a clearer and more even light transmission are produced, suitable for use in advertising and craftwork.
Laser marking on acrylic sheets often suffers from problems of blurred images and foggy edges.To achieve the desired light-transmission effect, it is first necessary to select the appropriate laser parameters based on the thickness of the material.For example, for 2mm-thick material, it would be recommended to use 30 % power and a speed of 800mm / s. If the power is set too high, it will cause the material to carbonize and turn black.In actual use, a step test can be used, in which a single board is sectioned off and each section given a different parameter to compare the degree of transparency.
The pre-treatment stage is often neglected, but is critical.The surface is then wiped with alcohol-soaked non-woven cloth to remove the oil coating and electrostatically adhered dust, so that no scattering of light will occur during the engraving process.To achieve a high degree of transparency, you can try spraying on a nanoscale transparent protective coating before you start carving. This will reduce the laser burn marks and increase the refractive effect of the light.
The design of the grooves directly affects the uniformity of the light.The company recommended using a bidirectional scanning method instead of a single-direction cutting method, and controlling the filling gap to between 0.08 and 0.12 mm.For fine text, lowering the scanning speed to 600 mm / s and turning on the air-blowing function can effectively prevent the material from becoming deformed due to overheating.After carving is complete, the work is cleaned with a soft brush, and a special acrylic polish is applied to the surface. This can improve the light transmission rate by over 15 %.
Special scenes may be treated with a layered carving technique: the outlines are first drawn with low power, then filling is done with medium power, and finally the edges are smoothed with high power.This method avoids the problem of the light becoming cloudy due to the use of too much energy, and is especially suitable for making three-dimensional light-transmitting signs.Regular maintenance and calibration of the laser lenses and optical path are key measures for ensuring that the light transmission effect remains stable.
Professional Grade: Layered Engraving and Auxiliary Coating Technologies
This article examines the core technologies behind this process, including layered etching and the application of auxiliary coatings.By analyzing material processing, carving techniques and coating combinations, we help designers and manufacturers enhance the visual quality and functionality of their products.Key words include light transmission, layering, and coating, providing a practical solution.
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Three Key Indicators for Choosing the Right Acrylic Sheet for Laser Etching
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A Guide to the Setting of Parameters for Acrylic Laser Marking: From Beginner to Master
This guide provides a complete overview of the process of setting parameters for laser engraving on acrylic, including tips on adjusting key parameters such as power, speed, and frequency. This guide will help beginners quickly master the basics, and also provides advanced users with practical suggestions for optimizing engraving.The book includes information on equipment selection, parameter adjustment, and solutions to common problems. It will be of interest to those looking to improve the efficiency of their acrylic marking.
Five Problems with Laser Engraving Acrylic and Their Solutions
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