First, it is necessary to check the quality of the welding machine. Generally, there are two methods: visual inspection and destructive inspection. Visual inspection as the name implies, is the staff according to their rich work experience to determine whether the welding machine product is qualified, but if the conclusion based on this inspection is not sufficient, this requires destructive testing, that is, tearing the welding machine base metal for confirmation. In addition, tensile strength can also be tested with a tensile meter.
Second, analyze the causes according to the phenomenon. Generally speaking, if there is poor processing of the welding machine, there may be a problem with the material, and it is necessary to replace the material or change the waveform of the laser welding machine to set the process conditions after checking the quality of the material to solve it; If the welding machine product continuously appears in the same part of the welding machine product, it is likely that the workbench and clamp have problems; If there are occasional weld-through and virtual welds, you can check the energy stability of the welding machine or whether there are problems with the table and fixtures.
Third, strengthen the quality assurance management of welding machines. In the process of welding machine, one should often use a pressure tester to test the pressure of the welding machine to keep the pressure unchanged, and at the same time, the action condition of the welding machine head should be checked frequently; Second, we should strengthen the monitoring of current to avoid problems such as fluctuations in power supply voltage, overheating caused by overloaded operation of welding machines that reduce current output, poor workpiece contact leads to reduced current, and poor performance of welding machines; Third, we should consider the changes in the thickness of the workpiece, the thickness of the coating, the metal composition, etc., to avoid the appearance of defective products of the welding machine.