Experimental Research on the Technical Parameters of Laser Engraving

Abstract

The process route for obtaining the processing parameter data through the engraving test first and then using these data for laser engraving was formulated. Through laser engraving experiments on a variety of materials such as wood, bamboo, paper, plastic, leather goods, PCB, acrylic, glass, paint layer, etc., we studied the changes of laser engraving with laser intensity, engraving speed, and black and white contrast. The physical process of laser engraving is analyzed, and the laser engraving of different materials is successfully carried out using the optimized parameters obtained by the experiment. And through the experiment to obtain the appropriate engraving technical parameters, technical parameters include laser intensity, engraving speed, black and white contrast, etc. The experimental results show that different engraving materials have basically different laser intensity, engraving speed, and black and white contrast. The combination of low intensity and slow speed engraving can delay the laser loss. The slower the speed of most materials, the better the effect. Carrying out laser engraving on materials with high ignition points, the effect of low-speed engraving is better. Laser 3D engraving technology is an emerging and promising laser processing technology. This article has reference value for further research on laser 3D engraving.

The Effect of Co2 Laser Engrave Parameters on Surface Roughness on Polymethylmethacrylate (Pmma)

“…et al and Xie et al[10,13] conducted research that was very similar to what we did, and they came to the same…”

“…Khan conclusion: the surface quality can deteriorate with increasing distance from the laser defocus, but a smoother surface can be achieved by reducing the amount of time that the laser beam is focused on the material. Xie et al [10,13] came to the same conclusion. The signal-to-noise ratio, often known as the S/N ratio, is a measurement that indicates the level of quality in a process.…”

“…This makes it necessary to account for these differences when designing the process. Previous research [12][13][14][15][16][17] has provided a summary of the factors that might impact the surface roughness. These factors include scanning speed, focal distance, scan gap, and laser power.…”

“…This is owing to the fact that the ablation process takes precedence. On the other hand, a lengthier melting process resulted in the formation of bulges [4,[13][14][15], which led to a larger degree of surface roughness (at Level 1) being formed as a result of the process. This was the case because the bulges caused the surface to be less level.…”

Real-Time Monitoring and Control of Ultra-Fast Laser Engraving Process Utilizing Spectrometer

“…Laser scribing technology has been actively developed in recent years and is replacing conventional mechanical methods. Laser engraving provides high precision for a wide range of materials in a contactless high-speed process with a high power of laser beam [3], [4]. Ultrafast lasers are favored to be engaged in laser engraving applications [5].…”