Technical methods and precautions for laser cutting tempered glass

The principle of laser cutting tempered glass
Laser cutting is a technology that uses a laser beam to perform thermal processing on materials. Under the irradiation of a laser beam, the surface of tempered glass undergoes instantaneous thermal expansion and cooling, resulting in a stress difference that causes the glass to fracture in the laser beam irradiation area. Therefore, laser cutting tempered glass requires precise control of laser parameters, equipment, and materials.

Selection of equipment and materials
1. Laser cutting machine: Choose a CO2 laser cutting machine or fiber laser cutting machine with moderate power.
2. Cutting head: Use a cutting head with high stability and precision to ensure accurate focal position of the laser beam.
3. Glass material: Choose high-quality tempered glass to ensure the uniformity and stability of the material.

Setting of cutting parameters
1. Laser power: Generally above 1000 watts, adjusted according to the thickness and hardness of the material.
2. Scanning speed: Adjust according to the thickness and hardness of the glass, usually 0.3-0.5 meters per second.
3. Focal length: Adjust according to the thickness and hardness of the glass, usually 5-7 millimeters.
4. Laser pulse frequency: adjusted according to the thickness and hardness of the glass, generally between 500-1000 hertz.

Precautions
1. Safety protection: During the laser cutting process, it is necessary to wear protective glasses and gloves to prevent the laser from causing harm to the human body.
2. Clean environment: Laser cutting needs to be carried out in a clean and dust-free environment to avoid the impact of dust and impurities on cutting quality.
3. Quality control: Real time monitoring and adjustment of cutting quality are required during the cutting process to ensure that the cutting quality meets the requirements.
4. Post cutting treatment: The edges of the tempered glass after cutting will produce small cracks, which need to be polished and polished to avoid harm to the human body caused by the cutting edges.
5. Maintenance: Regularly maintain the laser cutting machine to ensure its normal operation and lifespan.

【 Conclusion 】
Laser cutting tempered glass is a high-precision and high-efficiency processing technology that can be widely applied in fields such as construction, home furnishings, and automobiles. However, laser cutting also has certain technical difficulties and safety hazards, requiring strict quality control and safety protection. Through the introduction in this article, it is believed that readers have gained a deeper understanding of the technology and precautions for laser cutting tempered glass.