What is sheet metal working?

Auto sheet metal painting is good to learn, because there are not too many requirements, as long as you are attentive and interested, you can learn. Automotive maintenance technology is not difficult to learn, but to learn well, you must spend a lot of time practicing, accumulate more experience, practice makes perfect, in order to get out of the teacher. Sheet metal painting is two types of work, sheet metal workers and paint workers. When a car is painted, it is first handled by a sheet metal worker and then painted by a painter. Sheet metal workers need to learn how to use basic equipment, such as sanding, dismantling, and pulling. Paint sprayers need to learn how to apply masking, putty, various types of paint, and drying.

The basic process of sheet metal painting is usually divided into five steps:

1, confirm the program: according to the severity of the vehicle collision to develop the appropriate repair program. If it is a serious traffic accident will also involve the engine, transmission, circuitry, etc., then it is necessary to mechanic department of personnel to disassemble and repair.

2, sheet metal correction sheet metal correction needs to be based on the degree of deformation of the body, through the appropriate repair equipment to repair the deformed parts. Sheet metal includes cutting, grinding, stretching, receiving fire, oxygen treatment, etc., the purpose is to let the deformed parts to restore the original state, and maintain the original rigidity of the metal.

3, scraping and shaping: the vehicle through the sheet metal after there will be many defects and repair traces, which is the sheet metal work can not be made up for the defects, even if the direct replacement of new parts, there will be imperfections, this time it is necessary to scrape and shaping to reshape the body waistline and flatness. This program may seem simple, but in fact it is a test of the workers' craftsmanship.

4, spray paint: spray paint process is also more complicated, and for the working environment also has high requirements, need to be carried out in dust-free conditions. Spraying is mainly divided into the following steps: spraying the first primer - spraying the primer - sanding the primer - adjusting the paint - spraying the topcoat - drying the paint. -Spraying the top coat -Drying the paint.

5, paint surface treatment: paint surface treatment is the entire sheet metal painting work in the latter process. In fact, no matter how meticulous the workers work, more or less will leave some imperfections, even some dust floating in the air will affect the whole effect, then you can only rely on this link to remedy. Usually the main way to remedy is by very fine cosmetic sandpaper or polishing machine to sand, in order to achieve the "mirror" effect.