With the continuous development of science and technology, laser technology has been steadily developing in various industries, but laser welding machines have appeared in our lives, such as stainless steel, aluminum (home, cabinets, kitchens, kitchens, elevators, shelves, ovens, doors, windows, guardrails, distribution boxes) and so on. However, in the process of using laser welding equipment, there will be some failures to a greater or lesser extent. Of course, any machine can fail. In order to make the laser welding machine work better, reduce the number of failures, and improve work efficiency, we must understand the working principle of the laser welding machine.
Fault.
1. The weld is very black when the laser welding machine is welding.
1. The nitrogen is not turned on, as long as the nitrogen is turned on, it can be solved.
2. If the direction of airflow protection is incorrect, the direction of airflow protection should be opposite to the direction of workpiece movement.
Fault.
2. Cracks appear during welding of the laser welding machine.
1. If the cooling speed of the workpiece is too fast, the temperature of the cooling water on the fixture should be adjusted to increase the water temperature.
2. If the matching gap between the workpieces is too large or there are burrs, the machining accuracy of the workpiece should be improved.
3. The workpiece is not cleaned, and the workpiece needs to be cleaned again in this case.
4. Excessive protective air flow can reduce the flow of protective air.
Fault.
3. The welding depth of the laser welding machine is insufficient.
1. The laser energy is insufficient, which can improve the pulse width and increase the current.
2. If the defocus amount of the focusing lens is incorrect, the defocus amount should be adjusted to a position close to the focal point.
Fault.
Fourth, the flame weakens when the laser welding machine is welding.
1. If the shutter is not completely opened, check and add lubricating oil to the shutter connector to make the connector mechanically stable.
2. The laser offset of the main optical path, adjust the all-reflective and semi-reflective diaphragms of the main optical path, check with paper, and adjust the round spots.
3. Cooling water pollution or if the cooling water is not replaced for a long time, the cooling water can be replaced, and the ultraviolet tube and xenon lamp can be cleaned.
4. Adjust the 45-degree reflective film so that the laser is output from the center of the nozzle, rather than from the center of the copper nozzle under the focusing head.
5. If the resonant cavity film of the focusing lens or laser is damaged or contaminated, it should be replaced or cleaned in time.
If the laser welding machine fails, we can refer to the above content for operation inspection, if there is really a problem that cannot be solved, you can consult us.