LWM principle
Comprehensively evaluate the repeatability and consistency of the entire welding process, monitor process abnormalities and defects in real time, improve the FTQ and ensure that defective workpieces do not flow out.
Common defects are as follows ：
1.burr on the welding joint
2.defective clamping devices
3.changes of the laser power, focal position, seam position
4.lens contamination and shielding gas supply or volume flow
5.others