What is sheet metal for car repair? What does it mean to do sheet metal in car repair?

Of course! The company covers an area of 90,000 square meters, with a construction area of 70,000 square meters, fixed assets of more than 300 million yuan, and an annual output value of more than 500 million yuan; There are more than 1,700 employees, including more than 100 engineering and technical personnel and more than 100 quality technicians; The company has a beautiful environment and is a high-level garden-style modern factory. The company has more than 600 sets of the world's most advanced high-precision machinery and equipment

Including the laser cutting machine and high-precision CNC punching machine of the German TRUMPF company; LGMAZAK CNC machine; Japan AMADA precision CNC punching and bending machine; Large pneumatic punching press, multiple automatic stamping production lines; CNC lathes, grinding machines, milling machines and other hardware processing equipment have formed a strong production capacity for sheet metal, stamping and machining.

It is a processing method for automobile maintenance, also known as cold work. To put it bluntly, if the appearance of the body is damaged and deformed, the process of sheet metal is needed to restore the original appearance. Basically, the tool used is a hammer.

Hammers of different shapes, horn blocks behind the sheet parts, repeatedly struck to make them shape. Cosmetic restorers are also used when necessary. This thing actually belongs to welding.

Weld the iron girth to the body and pull it out with a hook. It is used to repair sunken areas. It is generally difficult to get back into place with a large flat body, so sometimes it is necessary to close the fire.

It is to cool after local heating, so that the iron sheet shrinks. The ultimate goal was to restore the damaged body to its original appearance. 2.

Sheet metal: Sheet, that is, plate, the meaning of thin plate, is the meaning of a series of processing of thin metal plates, including folding, shearing, punching, welding, riveting, splicing and other processes 3This is a design module, mainly for the use of iron sheet materials to make things He is different from the entity, the thickness of the entity changes, but the sheet metal is basically the same thickness, and there are many products made of sheet metal in life.

Sheet metal, a processing technology, sheet metal has not yet had a relatively complete definition. According to a definition in a foreign professional journal, it can be defined as: sheet metal is a comprehensive cold working process for metal sheet (usually below 6mm), including shearing, punching, composite, folding, riveting, splicing, forming (such as automobile body) and so on.

Its distinctive feature is that the thickness of the same part is the same.

Explanation of Modern Chinese Dictionary (5th Edition) - sheet metal: a verb that processes metal plates such as steel plates, aluminum plates, and copper plates.

Automobile sheet metal is a kind of technical means of automobile repair, in this regard, automobile sheet metal is equal to automobile sheet metal repair, which refers to the repair of the car body after the collision, that is, all the rest of the work except for the anti-corrosion and decoration of the body.

Automobile sheet metal is a processing method for automobile maintenance, also known as cold work, to say that directly, if the appearance of the body is damaged and deformed, the process of sheet metal is needed. Automobile collision repair has developed from the original "smashing, pulling and welding repair" to the secondary manufacturing assembly of the body. The repair of the collision accident vehicle is no longer a simple knocking on the sheet metal of the car, and the quality of the repair cannot be observed by the naked eye alone.

Maintenance personnel should not only understand the technical parameters and dimensions of the body, but also master the characteristics of the body materials, the transmission of the characteristics of the force, the deformation trend and stress points of the body, and the production process of the body, such as welding process. Sheet metal is a type of work in auto repair, mainly for the appearance of the body, the replacement, repair, orthopedics, and paint of the external car body (such as bumpers, doors) also belong to the sheet metal work area, and there is a specific division of labor within the sheet metal, and the above content of sheet metal in the broad sense is fully covered. The sheet metal in the narrow sense is only to replace the outer car body, as well as the use of welding, shelf orthopedics and other general repair of the car shape work, the sheet metal in the broad sense and putty, grinding, and painting, as well as polishing, are their own division of labor in the interior, what we call sheet metal, generally refers to the broad sense.

Photo by Shi Lili) 2019

Automobile sheet metal is a means of repairing a car.

There are more and more cars outside, and if the vehicle encounters a collision that causes problems such as dents in the body, it needs to be repaired to ensure the normal use of the vehicle and the appearance of the beauty.

Sheet metal is a type of work for auto repair, mainly for the appearance of the body, the replacement of the external body (such as bumpers, doors), repair, orthopedics, and paint also belong to the sheet metal work area, and there is a specific division of labor in the sheet metal, the sheet metal in the broad sense is fully covered, and the sheet metal in the narrow sense is only to replace the outer car body, as well as the use of welding, upper frame orthopedics and other general repair of the car shape work.

The practice of automotive sheet metal

After the damaged parts are cleaned, confirm the degree of damage, so as to establish a repair method, remove the sheet metal parts of the damaged parts of the collision vehicle from the original body by cutting and other methods, polish the original paint of the damaged parts to expose the iron plate layer, and use the corresponding sheet metal tools to flatten the recessed parts according to the degree of damage to the mold of the sheet metal parts, and after the leveling work is completed, the surface of the sheet metal parts should be accurately adjusted for flatness.

The process of making sheet metal is relatively cumbersome, and it is relatively high, but the advantage is that the technology is relatively mature and widely used in the market.