Fiber Laser Welding Machine Types
Air-Cooled Fiber Laser Welding Machine
- Cooling Method: Uses air circulation to dissipate heat.
- Common Power Ratings: Typically available in 500W to 1.5kW.
- Welding Thickness: Suitable for welding metal sheets up to 3mm thick, ideal for thinner materials and lighter welding tasks.
Water-Cooled Fiber Laser Welding Machine
- Cooling Method: Uses a water cooling system to handle higher heat levels.
- Common Power Ratings: Typically available in 1kW to 3kW and above.
- Welding Thickness: Capable of welding thicker materials, up to 8mm or more, making it ideal for heavy-duty industrial applications.
Introduction to Laser Welding
Laser welding is a high-efficiency precision method that uses a high-energy density laser beam as the heat source. It’s a significant aspect of laser material processing technology.
Historical Development
In the 1970s, laser welding was mainly used for thin materials and low-speed applications. The process is thermal conduction-based, where the laser heats the surface of the workpiece, and the heat then conducts inward to melt the material, forming a weld pool.
Welding Techniques
Laser welding can be executed with continuous or pulsed laser beams. It can be categorized into two main types:
Thermal Conduction Welding: For power densities less than 10^4 to 10^5 W/cm². This technique results in shallow weld depths and slower speeds.
Deep Penetration Welding: For power densities greater than 10^5 to 10^7 W/cm². This method creates deep welds with high speed and a large depth-to-width ratio, as the metal surface forms “holes” under the laser’s heat.
Applications and Advantages
Laser welding is especially effective for the precision welding of micro and small components, offering unique advantages in terms of speed and accuracy.
Fiber laser welding machine for metal
