To ensure the quality and efficiency of automobile body sheet metal repair work, it is necessary to make basic preliminary preparations before the formal repair work. Mainly from the aspects of car body, damage and workmanship. Only when these three preparations are organically combined can the subsequent repair work ensure good quality and efficiency. That is, by analyzing the car body and damage, the appropriate repair technology is determined and selected.
Before proceeding with restoration, the car body must first be fully analyzed. This mainly includes the structural form of the body sheet metal, the composition of the body, the material type of the body, the welding process of the body, etc. Through a comprehensive analysis of the structure, material and welding process of the car body, we can determine the appropriate sheet metal repair technology to maximize the repair of the car body and ensure the craftsmanship and quality of the repair.
Before repair, it is necessary to determine the damaged area based on the specific conditions of the vehicle body damage, determine the intensity and direction of the collision when the damage occurred, and conduct a complete inspection and inspection of the possible damaged areas of the vehicle body. After the actual measurement of the body sheet metal, appropriate repair work is carried out according to the standard parameter dimensions of the vehicle to ensure the refinement of the body sheet metal repair work, thereby improving the quality of repairs.
Scientific and reasonable sheet metal repair technology is selected through a comprehensive synthesis of various information on the car body, the location and area of ??the damaged sheet metal, and the specific standard parameter dimensions of the car.
After making preparations for repair, you should also pay attention to the following issues. First, the specific repair technology can be determined based on the direct, indirect and inertial effects of the car body sheet metal, etc., to determine the specific repair technology; second, the welding process used can be determined based on the condition of the body material; third, in During the process of correcting and stretching the deformed sheet metal, it is necessary to find the auxiliary support positioning before repair work to ensure that it will not affect the deformation of other parts of the body; fourthly, when welding and replacing parts, the required replacement parts must be accurately positioned , to avoid having to correct it again after the welding work is completed, which reduces the overall maintenance efficiency.
In the process of car body sheet metal repair work, there are two basic principles: economic principle and quality principle. During the body sheet metal repair process, we must first consider how to improve the economic benefits of repair. But we can’t just focus on economic benefits. Therefore, it is necessary to maximize the economy of repair work while ensuring quality, taking into account both principles, and taking comprehensive considerations into consideration to carry out repair work.
For example, when performing partial stretch repair work on the right front door frame of a car, how to keep the sheet metal parts near the roof and left rear door frame from being affected, so as to avoid unnecessary increase in repair work. When welding the bottom of the car body, vehicle beams, etc., how can we prevent the internal structure of the metal from developing major changes and ensure that thermal stress does not spread excessively. In addition, maintenance personnel often face the problem of being unable to repair damaged sheet metal because maintenance equipment or tools are affected by space. How to effectively solve the problem.