With the continuous progress of science and technology as well as the improvement of people’s consumption level and quality of life, the automobile manufacturing field has higher and higher requirements for the weight and appearance design of the body. With its excellent processing effect and high efficiency, laser welding technology has rapidly emerged in the automotive field and become one of the core technologies in automotive welding.
In the process of automobile manufacturing, laser welding technology is mainly used for laser welding of thick steel plates, laser group welding of automobile assemblies and sub-system assemblies, and laser welding of vehicle parts and components. Europe and the United States, some of the old car manufacturers in the early application of laser welding technology. As early as the 1980s, Audi, Mercedes-Benz and BMW and other well-known automobile brands have introduced laser welding into the production process of automobiles, which greatly promoted the popularization and development of laser welding technology in the field of automobile manufacturing applications.
In recent years, laser welding of new energy vehicle batteries has become one of the most popular welding applications, promoting the development of a number of domestic enterprises, such as hanslaser and riselaser. In addition, laser welding is widely used in automobile body and parts. China, as the world’s largest automobile market, has a number of established and emerging automobile enterprises, such as FAW, Chery and Guangzhou Automobile Honda, etc., have been automated laser welding into the production line. In railroad locomotive manufacturing, China Railway Tangshan Locomotive and China Railway Qingdao Sifang Locomotive have also introduced kilowatt or even 10,000-watt laser welding technology. Laser welding application in the field of power battery is more extensive, Ningde Times, AVIC lithium-ion, BYD and Guoxuan and other head enterprises have made extensive use of laser welding equipment.
Laser welding machine can not only have excellent performance in equipment such as welding, but also can significantly reduce the weight of the car, in addition, but also at the same time to ensure high quality and safety performance. Compared with the traditional arc welding method, laser welding has the advantages of low heat input, small welding distortion, easy automation and high productivity, and in the vacuum, air and specific gas environment can be completed welding, can adapt to a variety of complex working conditions.
Laser welding equipment can be divided into automatic laser mold welding machine, automatic laser welding machine, laser nut spot welding machine and fiber optic transmission laser welding machine, etc. according to the way of work. The wide application of laser technology, in improving the production efficiency at the same time, but also promote the automobile manufacturing field of lightweight and intelligent development, greatly meet the modern automobile manufacturing on high efficiency, environmental protection and precision processing and so on the demand.
In short, with the in-depth application of laser welding technology in the field of automobile manufacturing, the future of this technology to improve product quality, reduce production costs and improve production efficiency will play a greater role in helping the automotive industry to realize a more efficient and greener production methods.
