Correct use of laser welding machine and matters needing attention.

Laser welding machine in the process of use, more or less will appear some faults. Of course, in order to make the laser welding machine work better, reduce the number of failures, improve work efficiency, it is necessary to understand the working principle of laser welding machine. Below, the technical personnel of Taiyi company will introduce to you the common faults of laser welding machine and the handling method.

Fault a, laser welding machine welding weld is very black

The airflow direction of the protective gas is not correct, and the airflow direction of the protective gas should be opposite to the direction of the workpiece.

Fault two, laser welding machine welding crack

1, the workpiece cooling speed is too fast, the temperature of cooling water should be adjusted on the fixture, improve the water temperature.

2. When the workpiece fit clearance is too large or there are burrs, the machining accuracy of the workpiece should be improved.

3. The workpiece has not been cleaned. In this case, the workpiece needs to be cleaned again.

4. The flow rate of the protective gas is too large, which can be solved by reducing the flow rate of the protective gas.

Fault three, laser welding machine welding penetration is not enough

1. Lack of laser energy can improve pulse width and current.

2, the focus lens is not the correct amount, should adjust the amount of focus to close to the focus position.

Fault 4: the flame of laser welding machine is weakened when welding

1, the shutter is not completely excluded, and check the lubrication on the shutter connector, so that the connector can be smoothly mechanical.

2. Main optical path laser deviation, main optical path total reflection and semi-reflection aperture adjustment, like paper inspection, dot adjustment.

3, cooling water pollution or long-term replacement of cooling water, replacement of cooling water and cleaning ultraviolet glass tube and xenon lamp can be solved.

4, the laser does not output from the center of the copper nozzle under the focusing head, adjust the 45° reflected aperture, so that the laser output from the center of the nozzle.

5, focusing lens or laser resonator film damage or pollution, should be replaced or clean in time. 

Laser welding machine fault, can refer to the above content for operation check.