Is laser welding equipment harmful to humans?

Laser welding machines are likely familiar to many. During laser welding operations, sparks often flash and glow. But are laser welding machines harmful to the human body? Below, Top Optics Metal Laser Welding Machine Manufacturer provides a brief introduction.

Laser welding machines are commonly used equipment in laser material processing. Welding is a manufacturing process and technology that joins metals or other thermoplastic materials like plastics through heating, high temperatures, or high pressure. Primary welding methods include: pressure welding, brazing, and fusion welding. Common techniques involve gas flames, electron beams, lasers, arcs, friction, and ultrasonic waves.

Laser beams emitted by the laser source are generally inaccessible and invisible, posing minimal risk. However, non-professionals must never attempt to contact the laser source due to its invisibility and high energy levels. While lasers are electromagnetic waves, welding machines utilize wavelengths that are significantly longer than those of harmful radiation like ultraviolet light.

During operation, ensure adequate ventilation to prevent inhalation of dust and metal particles. Pay attention to shielding gas—typically inert gases—which, while non-toxic, should not be inhaled excessively.

Maintain distance from the welding area during operation. While the laser source itself poses minimal radiation risk, the welding process generates two other types of radiation: ionizing radiation and stimulated radiation. This induced radiation includes short wavelengths that can significantly affect the eyes and body. Stay away from the weld point and never look directly at it.

In summary, for close-range laser welding work, wear respiratory protection, radiation-protective clothing, and eye shields.