The use of laser scanning welding: since laser welding is successfully used in TOURAN welding, Volkswagen after all of the models in the use of laser welding technology, LF A5 laser welding on the body part of a total length of up to 50m, so the body stiffness increases greatly, and competitors is a great advantage. Compared with the laser welding technology, the laser scanning remote welding has significantly improved, especially the production efficiency has been greatly improved.
In order to test the performance of the new process, a pilot was set up at Volkswagen's MOSEL plant to produce the rear window platen of Passat B6, and also to test the efficiency of the system. After the small batch production of Passat, the laser scanning welding process and its system components were applied to Volkswagen's products in 2005. The high availability of the system components is verified and the profit margins are increased. Now Audi has always implemented this process in its range of products. From the beginning of 2007, the subsequent Audi A4 doors have been using laser scanning welding technology and the 4 kW disk laser made by TRUMPF company. With this technology, four manufacturing units can produce 1800 doors per day.
By approximate mass production testing, we have reduced the time by 80% compared with the traditional resistance welding. Another important manifestation of the flexibility of the scanning lens is the diversity of the weld shape. If the weld is C shaped, its welding speed is significantly increased compared with the linear weld. In addition to the welding process, a ID consisting of 8 characters can also be identified in this part. The purpose is to record and track the workpiece.
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