With the development of laser, laser welding machine technology is becoming more mature. However, in the actual production process of welding, but also for various reasons and produce all kinds of problems. How to identify the cause of the problem, how to solve the emergence of quality problems, which is the production process management process is very important part.
Analyze the cause according to the phenomenon. In general, if there is poor welding process, the material may be a problem, the laser welding machine need to check the quality of materials after the replacement of materials or change the laser welding machine waveform setting process conditions to resolve; if the welding of the same parts of the welding defects , It is likely that the table and fixture problems; if the occasional welding and Weld phenomenon, you can check the stability of the welding machine or fixture work table and the existence of the problem.
To check the quality of welding inspection of welding quality. Generally there are two methods of visual inspection and destructive testing. Visual inspection As the name suggests, the staff according to their rich work experience to determine whether the qualified welding products, but by virtue of this test to conclusions, not enough, which requires destructive testing, that is, tearing welding base material for confirmation . In addition, the tensile strength may be checked by a tensile tester.
Strengthen the welding quality assurance management. In the welding process, one should always use the pressure tester to test the welding pressure, so that the pressure remains unchanged, at the same time, we must always check the operation of the welding head; two to strengthen the current monitoring to avoid the power Voltage fluctuations, welding machine overheating caused by the overheating of the current output to reduce the workpiece caused by poor contact current, laser welding machine performance and other issues; three to consider the workpiece thickness, coating thickness, metal composition and other changes to avoid welding The emergence of good products. Reduce product loss rate. (China Encyclopedia Network)