Application of laser welding technology in automobile field

The combination of laser and welding is a great breakthrough in traditional industry. It not only improves the welding quality, but also shortens the welding cycle. Today, laser welding processing technology has been applied in many industries, the most common being high-tech electronics, automobile manufacturing and precision processing. However, in the field of automobile manufacturing, the application proportion of laser welding is still in the lower middle level.

The concept of laser welding is also credited to Volkswagen. In the dazzling automobile market, Volkswagen brand has always been favored for its durability. This is exactly what the traditional welding processing technology can not achieve.

Many people don’t quite understand the meaning of laser welding. In fact, laser welding is only one of the directions of laser application. It is to use high-energy laser pulses to instantly heat up and melt the welding points and realize permanent bonding between metals. This is the latest welding method after combining with the traditional process. In view of its advantages such as small weld width, fast welding speed, small influence area, smooth welding, small deformation and beautiful appearance, laser welding is also used as a variety of welding processes such as spot welding, butt welding, seal welding and overlap welding. The appearance of laser welding has promoted the great leap of welding technology and made it possible to weld metal and non-metal.

Because the production line of laser welding processing technology needs to be completely closed, which itself requires a large amount of capital investment, resulting in its cost much higher than that of traditional welding processing technology. Therefore, in the process of automobile manufacturing, laser welding processing technology is mainly used in the roof and the surrounding parts on both sides. On the one hand, it saves the manufacturing cost and ensures the beauty and tightness of the automobile. Although Volkswagen is the first brand to introduce laser welding, it is still Mercedes Benz, BMW and Ferrari that have played this technology to the extreme. As for the reason, we can see from the appearance and sound insulation performance of the car.

In recent years, as the laser welding processing technology has become more and more popular in the market, the competition among laser welding processing plants has also become white hot. How to select laser welding processing plants with high quality and quantity? Here are four standards for reference: strong strength, mature technology, good reputation and excellent after-sales service.

Each laser welding processing factory has its own short plate. Those factories with high-quality after-sales service may not have mature technology; Some factories have strong strength and the banner of the first laser welding processing factory in the industry, but the completion quality is low. Therefore, if you want to find a good processing factory, you need to consider comprehensively according to your own needs.