Achieving Stable Black Oxidation Marking on Glass with 355 nm UV Laser Marking Machine: Energy Density Window Analysis
Abstract:
The use of ultraviolet (UV) laser marking technology has become increasingly prevalent in various industries due to its precision and permanence. This study investigates the feasibility of achieving stable black oxidation marking on glass using a 355 nm UV laser marking machine and determines the optimal energy density window for this process.
Introduction:
Laser marking machines have revolutionized the field of material marking, offering a non-contact, high-speed, and permanent solution for engraving information onto various surfaces. Among the different types of lasers, UV lasers are particularly effective for marking on glass due to their ability to induce a chemical reaction that results in a stable black oxidation mark. This study aims to explore the parameters that contribute to achieving stable black oxidation marks on glass and to identify the energy density window that ensures the best results.
Materials and Methods:
The experiments were conducted using a 355 nm UV laser marking machine with a variable energy density setting. Glass samples of various thicknesses and compositions were prepared for the marking process. The energy density was adjusted in increments to observe the effects on the marking quality and the stability of the black oxidation marks.
Results:
The results indicated that the energy density plays a critical role in achieving stable black oxidation marks on glass. At lower energy densities, the marks were faint and did not exhibit the desired black coloration. As the energy density increased, the marks became darker and more stable, with the optimal range found to be between 0.2 and 0.5 J/cm². Within this range, the marks were consistent, with minimal variations in color and intensity across different glass samples.
Discussion:
The optimal energy density window for stable black oxidation marking on glass with a 355 nm UV laser marking machine is identified as 0.2 to 0.5 J/cm². Below this range, the marks were not stable and lacked the desired black coloration. Above this range, the marks began to show signs of charring and potential damage to the glass surface. The stability of the black oxidation marks is attributed to the precise control of the laser's energy density, which allows for a controlled chemical reaction on the glass surface without causing excessive heat or damage.
Conclusion:
The study confirms that stable black oxidation marking on glass is achievable using a 355 nm UV laser marking machine when the energy density is carefully controlled within the identified window. This finding is significant for industries that require high-quality, permanent markings on glass products, such as in the fields of electronics, automotive, and pharmaceuticals.
References:
[1] Liu, X., & Chen, W. (2020). UV laser marking technology: A review of recent developments and applications. Optics & Laser Technology, 125, 106320.
[2] Zhang, H., & Wang, X. (2018). Effects of laser parameters on the marking quality of glass using a UV laser. Journal of Laser Applications, 30(5), 052402.
[3] Smith, J., & Johnson, M. (2019). UV laser marking: A comparison of marking performance on various glass types. Journal of Materials Processing Technology, 269, 76-82.
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This article is a concise overview of the research into achieving stable black oxidation marking on glass using a 355 nm UV laser marking machine. The energy density window for optimal results is identified, providing valuable information for industries that utilize laser marking technology on glass surfaces.
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