What Are The Common Faults And Solutions Of Laser Welding Machine?

Any machine may fail, and laser welding equipment is no exception. Laser welding is a new type of welding method, which is mainly aimed at the welding of thin-walled materials and precision parts. It can realize spot welding, butt welding, stack welding, sealing welding, etc. It has high depth-width ratio, small weld width, small heat-affected zone, small deformation, fast welding speed, smooth and beautiful welds. It does not need to be treated or only needs simple treatment after welding. It has high weld quality, no porosity, can be accurately controlled, small focus spot, high positioning accuracy and easy automation. Therefore, when using the laser welding machine, there will be some fault problems, which will affect the working efficiency of the laser welding machine. So what are the common faults of laser welding machine ? What are the specific solutions ? Qingyuan laser bring you together to see :

1.laser welding machine welding cracks 

Reason analysis and solutions : keep the cleanliness of the workpiece ; when the workpiece fit clearance is too large or there are burrs, should improve the machining accuracy of the workpiece ; the cooling speed of the workpiece is too fast, the temperature of the cooling water should be adjusted on the fixture to increase the temperature of the water ; protective gas flow is too large, by reducing the flow of protective gas to solve. 

2.Laser welding machine welding penetration is not enough 

Cause analysis and solution : lack of laser energy can improve pulse width and current ; focus lens is not the right amount, should adjust the amount of focus and close to the focus position. 

3.Laser welding machine welding seam is very black 

Cause analysis and solutions : the airflow direction of the protective gas is not correct, the airflow direction of the protective gas should be opposite to the direction of the workpiece.

4.Laser welding machine welding fire weakened 

Cause analysis and solutions : focus lens or laser resonator film damage or contamination, should be replaced or cleaned ; the laser is not output from the center of the copper nozzle under the focusing head, and the 45 ° reflection aperture is adjusted to make the laser output from the center of the nozzle. Main optical path laser deviation, main optical path total reflection and half reflection diaphragm adjustment, like paper inspection, dot adjustment ; cooling water pollution or long-term do not replace the cooling water, replace the cooling water and cleaning ultraviolet glass tube and xenon lamp can be solved.