Safety Precautions for Handheld Laser Welding

1. Avoid laser eye injury, and on-site operators must wear laser-specific protective eyewear.

2. Avoid laser skin burns, direct exposure of the skin to the laser can cause burns, so on-site operators should wear work clothes to reduce the impact of diffuse reflection.

3. Carefully read the user manual and strictly follow the operating procedures for the laser welding machine to ensure equipment and personal safety.

4. Check if all parts of the welding machine are working properly. Before welding, check if all parts of the laser welding machine are working properly. After the operation, inspect the welding machine and the work area to eliminate potential hazards and ensure safety without accidents.

5. Avoid laser radiation causing fires. Direct laser beam exposure or strong reflection can cause combustible materials to ignite, leading to fires.

6. The circulating water in the laser welding machine must be kept clean; otherwise, it will affect the output of the laser. The replacement cycle of cooling water can be determined based on the operating time, water quality, and other conditions. Generally, the water replacement cycle is shorter in summer than in winter.

7. The casing of the laser welding machine must be grounded safely. During operation, never stare directly at the laser beam with the eyes, and do not let the body (such as hands) come into contact with the laser beam to avoid injury.

8. Pay attention to maintaining a clean environment and the laser welding machine. Regularly inspect whether the laser rod and optical components are contaminated.

9. If it is necessary to repair the laser welding machine, be sure to turn off the power and make sure that the stored energy capacitors have been completely discharged before proceeding to prevent electric shock accidents. If any abnormal phenomena occur during operation, the power should be turned off, and the <Emergency> button should be pressed for inspection.

Self-Protecting Design of Handheld Laser Welding System

Laser Head Protection: When the laser head encounters an (E) signal or there is no data output, the system detects motor failure, and the laser head status light goes off, and the system stops sending light signals.

Welding Gun Status Protection: When the welding gun receives the conduction status and the laser head status is all normal, pressing down the trigger button can emit light.

Trigger Button Protection: This button is equipped with multiple independent circuits, which means that if any protection function is interfered with or malfunctions, releasing the trigger button can force the system to stop connecting to the laser, effectively preventing laser emission.

System Leakage Protection: The mainboard is equipped with multiple isolation protections to prevent chassis leakage, lightning, and other factors from burning the mainboard or causing interference to the mainboard.

Overheating Protection: Monitors the internal temperature of the laser welding machine. When the temperature exceeds the set threshold, it will automatically stop working to prevent the machine from overheating and damage.

Leakage Protection: Monitors whether there is leakage in the laser welding machine. When leakage is detected, the power will be cut off to ensure the user’s safety.

Water Cooling Protection: For laser welding machines that use water cooling systems, a water temperature protection function is set. When the water temperature is too high or the water flow is blocked, it will automatically stop working to prevent damage to the fiber optic or other components.