2000W Fiber optic metal laser welding machine, handheld laser welding machine

Fiber laser welding machine is an advanced processing equipment that uses the high-energy density laser beam generated by fiber laser as a heat source to melt weld metal materials. It represents the mainstream development direction of modern laser welding technology and is widely used in industrial manufacturing with its excellent performance.

1. Fiber laser:
Core light source: Fiber optic fiber doped with rare earth elements such as ytterbium (Yb) is used as the gain medium.
Pumping method: Usually, a high-power semiconductor laser diode (pump source) is used to couple the pump light into the gain fiber through a fiber coupler.
Working principle: Pump light excites rare earth ions in the gain fiber, generating and amplifying laser light of a specific wavelength (usually around * * 1070nm * *).
Advantages: Excellent beam quality (M ² close to 1), high photoelectric conversion efficiency (>30%), compact structure, good heat dissipation performance, maintenance free, long lifespan (usually tens of thousands of hours).

2. Beam transmission and focusing system
Transmission fiber: Flexible quartz fiber, used to transmit the laser generated by the laser from the light source to the processing head over long distances, with low loss and high fidelity.
Collimator mirror: Collimate the diverging beam output by the optical fiber into a parallel beam.
Focusing lens: a high-precision lens (such as F-Theta field lens) that focuses parallel beams onto the surface of the workpiece, forming an extremely small spot (micrometer level) and achieving ultra-high power density.
Mirror scanning system (optional): The high-speed mirror motor drives the reflector to achieve fast and accurate deflection scanning of the laser beam in a two-dimensional plane, suitable for complex trajectory welding and greatly improving efficiency.

3. Welding joints:
Integrated protective gas nozzle, coaxial/side axis CCD visual monitoring system (for positioning and weld seam tracking), height sensor (Z-axis follow-up), etc.

4. Motion control system:
It can be a multi axis robot, a 3D worktable (XYZ axis), or a CNC machine tool. Control the motion trajectory of the workpiece or laser head to achieve complex 3D welding. Collaborate with laser and mirror systems (if used).

5. Control system:
Industrial computer (IPC) or PLC.
Integrated control software is used to set welding parameters (power, speed, frequency, waveform, etc.), motion trajectory, protective gas, monitor process status, record data, fault diagnosis, etc.