Table of Contents

1. Introduction
2. Principles of CO2 Laser Marking Machine
3. Key Components of CO2 Laser Marking Machines
4. Operational Process
5. Applications of CO2 Laser Marking Machines
6. Huawo Laser Company Solutions
7. References

Introduction

CO2 laser marking machines are a vital tool in various industries for the permanent marking of materials. They operate by utilizing a carbon dioxide gas mixture to produce a continuous laser beam, which is then directed onto the material surface to create a mark through a process of material removal or alteration.

Principles of CO2 Laser Marking Machine

CO2 laser marking relies on a gas laser known for its high efficiency and power. The laser beam is generated through electrical stimulation of a gas mix typically composed of 10-20% carbon dioxide, 10-20% nitrogen, a few percent hydrogen and/or xenon, and the balance helium.

This mixture is energized within a resonant cavity using an electrical discharge, resulting in light amplification and emission of a laser beam at a wavelength of approximately 10.6 micrometers.

Key Components of CO2 Laser Marking Machines

• Laser Tube: Contains the gas mixture and electrodes for generating the laser.
• Optics: Mirrors and lenses that direct and focus the laser beam onto the workpiece.
• Control System: Software and hardware that manage the movement and modulation of the laser beam.
• Cooling System: Maintains the temperature of the laser tube to ensure consistent performance.

Operational Process

The CO2 laser marking process involves several stages:

1. Beam Generation: The laser tube is activated, and electrical discharge stimulates the gas molecules, creating the laser beam.
2. Beam Steering: Galvanometer scanners guide the laser beam across the material according to the controlled design.
3. Material Interaction: The focused beam interacts with the material's surface, causing localized heating, melting, and vaporization to create the desired mark.

Typical parameters for CO2 laser marking might include power levels from 10 to 200 watts, marking speeds up to 10,000 mm/s, and resolution precision of 0.1 mm.

Applications of CO2 Laser Marking Machines

CO2 lasers are versatile and used across various applications including:

• Marking and engraving of organic materials such as wood, leather, glass, and acrylic.
• Marking of ceramics and certain metals with surface treatments.
• Creating barcodes, serial numbers, and logos in manufacturing and packaging industries.

Huawo Laser Company Solutions

Huawo Laser offers a range of CO2 laser marking machines designed for precision and efficiency. Their solutions include:

• High-Speed Models: Capable of marking speeds up to 12,000 mm/s to boost production efficiency.
• Customizable Power Options: Machines available in power outputs ranging from 30W to 150W, tailored to different material requirements.
• Advanced Control Systems: Innovative software for precise control over marking parameters and improved user interface.

References

• Coherent, Inc., Understanding CO2 Laser Marking, Coherent White Papers.
• Spiegel, J., Industrial Lasers: Applications and Systems, Laser Technology Press.
• Huawo Laser Official Website, CO2 Laser Marking Solutions.