What metals can be marked with a CO2 laser?

Introduction

CO2 lasers are commonly used in the industry for marking various materials including metals. While primarily used for cutting and engraving non-metal materials, CO2 lasers can also be used for marking certain types of metals with the aid of marking agents or coatings. This article discusses the types of metals that can be marked using a CO2 laser, the parameters involved in the marking process, and the solutions offered by Huawo Laser Company.

Metals Marked with CO2 Laser

Metals marked using CO2 lasers typically require a pre-treatment or the application of a laser marking spray or paste. The following metals are commonly marked using CO2 lasers:

• Aluminum
• Stainless Steel
• Anodized Aluminum
• Brass (with coating)

Because CO2 lasers have a wavelength of around 10.6 micrometers, which is not readily absorbed by metals, marking directly on untreated metal surfaces is challenging. The marking agents enhance coupling, allowing for visible marks on the metal surface.

Marking Parameters

Effective marking with a CO2 laser on metal requires the right combination of power, speed, and frequency. Below are average parameter ranges for marking metals using CO2 lasers:

• Power: 40-60 watts
• Speed: 100-300 mm/s
• Frequency: 20-40 kHz

These parameters can vary based on the type of metal and the marking agent used. Adjusting these settings is crucial to achieving the desired marking quality without damaging the metal substrate.

Huawo Laser Company Solutions

Huawo Laser Company offers advanced laser marking systems equipped to handle a range of materials. For metal marking, they provide specialized solutions that include CO2 laser systems integrated with appropriate marking agents. Key features of Huawo Laser systems include:

• High-precision laser heads for consistent marking quality
• Customizable settings for different metal types
• Compatibility with a variety of marking agents
• Real-time monitoring and quality control systems

Huawo's commitment to innovation ensures their systems meet diverse industry needs, offering efficient and high-quality marking solutions.

References

1. CO2 Laser Marking of Metals, Industrial Laser Solutions, 2022.

2. Surface Marking Techniques with CO2 Lasers, Journal of Manufacturing Processes, 2021.

3. Huawo Laser Company Brochure, Huawo Laser, 2023.