Such as body damage analysis, body measurement, body sheet metal shaping, stretching correction, stress relief welding, body accessories assembly adjustment, etc.
The repair of vehicles in collision accidents is no longer a simple automotive sheet metal knock, and the quality of repair can not be observed only by naked eyes. Maintenance personnel should not only know the technical parameters and dimensions of the car body, but also master the characteristics of car body materials, the transmission of force characteristics, the deformation trend and stress points of the car body and the production technology of the car body, such as welding technology.
Extended data:
Automotive sheet metal repair method:
1. Bump damage: Bump of sheet metal parts can be repaired by hammering or jacking, and different treatment methods are adopted for the same situation. Of course, the process flow is different with different roughness, and the material of the car body should also be considered.
2, warping, skew deformation. Sheet metal parts will be warped and skewed due to impact, scraping or improper use. At this time, it can be eliminated by mechanical method or flame heating percussion method. The damage deformation of sheet metal parts is mainly the tensile deformation of related parts, and the original shape can be restored by eliminating the tensile stress by thermal shrinkage. Damaged or perforated.
3. The surface of the perforated sheet metal parts modified by the damaged goods of the collider can be repaired by pasting. At present, the main adhesives used are epoxy resin adhesive, phenolic resin adhesive and copper oxide adhesive.
4, crack or local serious damage. In these two cases, automobile maintenance will adopt welding repair or repair, but at present, 4S shops usually adopt direct replacement treatment.