The knowledge and skills of automobile body repair are the replacement of body parts, the basic skills of body sheet metal repair, the repair of typical body sheet metal parts, the repair of non-metallic parts for vehicles and the correction and repair of body deformation. The selection of tasks in the book revolves around actual cases, from simple to complex, from shallow to deep, with the main line of improving students' practical ability and paying attention to the training of basic operation and practical application, which fully embodies the characteristics of vocational education. Main technologies of automobile body manufacturing. Automobile body technology is generally called "four major technologies", namely stamping, painting, welding and assembly. In the whole automobile body manufacturing process, the body parts are stamped from thin metal materials according to the requirements of the body parts. Weld and assemble the body parts into an assembly to make a "white body"; "Body-in-white" painting is to protect the metal materials of the car body from corrosion; Finally, the components of each system are assembled.

In the process of automobile design and manufacturing, technical support is very important, and automobile production technology is also the main content of automobile design, which must be a mature technical means suitable for mass and mechanized automobile production. Body maintenance personnel should understand the body manufacturing process. In a sense, automobile body repair is to correct the body parts deformed by collision through various technical means. Car body maintenance personnel are familiar with car body manufacturing technology, and can better adopt reasonable and effective maintenance methods when maintaining car body parts, which can better save materials, reduce energy consumption, shorten maintenance time and make customers more satisfied. Stamping technology of automobile body. The stamping process of body outer panel is to form thin metal plate through stamping die, which can ensure the production quality of body, shorten the production cycle and reduce the manufacturing cost. The common stamping process and die design of automobile body is based on simplified theoretical model and empirical formula, and the preliminary scheme of stamping process and die is designed according to the practical experience of designers. After repeated die trial and die repair, the design requirements of the parts can be met.