For the division of automobile body, it means to remove the whole circuit computer system, the whole engine-driven brake steering system and paint. Then all that's left is the body.
2. Body assembly (this is a general term for accessories) includes: body sheet metal parts (metal parts), car glass, car lights, interior and exterior decorative parts and handles, seats and accessories, car lock mechanism, window sealing and lifting mechanism, doors and front and rear sail covers. That is to say, when your car has broken glass, broken door locks, damaged decorative parts and other problems, remember that you are looking for automotive sheet metal instead of other jobs!
Because the car is a high-precision whole. Moreover, electrical accessories and mechanical accessories should be attached to the corresponding positions of the car body with high precision and low error. Even the straightness and curvature of car paint (which greatly affects the beauty of car body) are highly dependent on the error value of car body sheet metal. Therefore, sheet metal body and its repair have become a purely manual work in the automobile industry without hard standards, automatic tools and intuitive teaching.
Welders are divided into five grades: primary (national vocational qualification level 5), intermediate (national vocational qualification level 4), advanced (national vocational qualification level 3), technician (national vocational qualification level 2) and senior technician (national vocational qualification level 1).
1, primary workers mainly use manual arc welding and gas cutting, mainly welding low alloy steel;
2. Submerged arc welding and gas shielded welding are the main welding methods, and low alloy steel and stainless steel are the main welding methods;
3. Senior workers are mainly welding cast iron, nonferrous metals and dissimilar metals;
4. Technicians should adopt special welding methods (brazing, laser welding, etc.). ) and welding of new materials (titanium, nickel, etc. ).
5. Senior technicians should be evaluated and hired among technicians. Senior technicians have superb welding technology and rich experience.
The higher the level, the more difficult the work content is. Welding certificate is preferred.