Handheld laser welding is an efficient and high-quality welding method. However, since it involves the use of “lasers,” many people are concerned about whether it generates radiation or poses risks to the human body.
In reality, handheld laser welding machine works by using laser pulses to heat a localized area of material, which then diffuses through thermal conduction, causing the material to melt and form a weld pool under high energy. The laser itself is a highly concentrated light source generated by stimulated emission. Under normal operation, it cannot be directly touched or seen, and therefore does not produce harmful effects on the human body.
Is a handheld laser welding machine harmful to the human body?
Laser is a form of electromagnetic wave. The longer the wavelength, the lower the radiation. Handheld laser welding machines typically use longer wavelengths, so radiation is minimal. However, during welding, short-wave ionizing or stimulated radiation may occur, which can have some impact on the body, but generally within safe limits.
When using a handheld laser welding machine:
- Non-professionals should not handle the laser source.
- Never look directly into the laser beam.
- Use proper protective equipment when working at close range.
The welding process often produces sparks. Prolonged direct viewing may cause eye discomfort such as soreness or stinging. Therefore, protective goggles or a welding helmet must be worn at all times.
Shielding gases used in laser welding are usually inert gases (e.g., argon). They are colorless, odorless, non-toxic, and chemically inactive, mainly serving to protect the weld pool. Even though they are non-toxic, wearing a protective mask is recommended during operation.
Safety precautions for handheld laser welding machines
1.Operational Safety: The laser beam generates extremely high temperatures. Never point the welding gun nozzle at personnel or at flammable/explosive materials to avoid fire or explosion hazards.
2.Equipment Safety: If abnormal noise or irregularities occur during operation, immediately press the emergency stop button located on top of the machine.
3.Personal Safety: The laser carries far greater energy than ordinary light and can cause serious damage to skin and eyes. Avoid direct eye exposure or contact with the laser source at all times.
How to Ensure Safe Operation of STRION Laser Refrigerant-Cooled Handheld Welding Machines?
1.Welding Loop Safety Protection:Equipped with safety clamp wiring to prevent accidental laser emission when the torch is lifted.
2.Laser Emission Warning: Clear emission indicators are installed on both the welding torch and the machine for immediate visibility.
3.Gas Pressure Protection: The system only allows laser emission when external shielding gas is connected and pressure is within a safe range.
4.Torch Temperature Protection: Torch design effectively prevents overheating, reducing risks of burns and thermal damage.
5.Button Misactivation Protection: Protective housing on the torch button prevents accidental emission caused by improper placement.
6.Protective Lens Detection: Laser emission is enabled only when the protective lens is properly installed and detected.
7.External Interlock Safety: Interfaces for external emergency stop, safety foot pedal, and other devices ensure seamless integration with factory or assembly line safety controls.
8.Emergency Stop Switch: A conveniently positioned top-mounted button allows operators to immediately shut down the system in case of emergency.
