Analysis of common faults and solutions of fiber laser welding machine
Common faults 1. Cracks appear during welding of laser welding machine
Cause analysis and solution: keep the cleanliness of the workpiece; when the workpiece matching gap is too large or there are burrs, the machining accuracy of the workpiece should be improved; the cooling speed of the workpiece is too fast, the temperature of the cooling water should be adjusted on the fixture to improve the water temperature. temperature; the flow rate of the protective gas is too large, which can be solved by reducing the flow rate of the protective gas.
Common faults 2. Laser welding machine welding penetration is not enough
Cause analysis and solution: The lack of laser energy can improve the pulse width and current; the focusing lens is not the correct amount, the amount of focusing and the close focusing position should be adjusted.
Common faults 3. The weld seam is very black when the laser welding machine welds
Cause analysis and solution: The airflow direction of the shielding gas is incorrect, and the airflow direction of the shielding gas should be opposite to the direction of the workpiece.
Common faults 4. The flame is weakened when the laser welding machine is welded
Cause analysis and solution: The focusing lens or laser resonator film is damaged or polluted, and should be replaced or cleaned in time; the laser does not output from the center of the copper nozzle under the focusing head, adjust the 45° reflective diaphragm to make the laser output from the center of the nozzle; Main optical path laser deviation, main optical path total reflection and semi-reflection diaphragm adjustment, like paper inspection, dot adjustment; cooling water pollution or long-term non-replacement of cooling water, replacement of cooling water and cleaning of ultraviolet glass tubes and xenon lamps can all be solved.
The above is the analysis of common faults and solutions of fiber laser welding machines. Laser welding machines are also often called laser welding machines, energy negative feedback laser welding machines, laser welding machines, laser welding machines, laser cold welding machines, laser argon welding machines, and laser welding machines. Welding equipment, etc. Weldable graphics are: point, line, circle, square or any plane graphics drawn by AUTOCAD software.
