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 sheets (usually below 6mm), including shearing, punching/cutting/compounding, folding, welding, riveting, splicing , forming (such as car body) and so on. Its remarkable feature is that the thickness of the same part is the same.

1. It is a processing method of automobile maintenance, also known as cold work. To put it directly, if the appearance of the body is damaged and deformed, the process of sheet metal is required to restore the original appearance. Basically the tool used is a hammer. Hammers of different shapes, put iron blocks behind the sheet parts, and beat them repeatedly to make them take shape. Appearance restorers are also used when necessary. This thing actually belongs to welding. Weld the hoop to the body and pull it out with the hook. Used to repair sunken areas. A large flat body is generally difficult to get back in place, so it is sometimes used to close the fire. It is to cool down after local heating, so that the iron sheet shrinks. The ultimate goal is to restore the damaged body to its original appearance.
2. Sheet metal: Sheet means plate, thin plate. It is the meaning of serial processing of thin metal sheets, including folding, shearing, punching, welding, riveting, splicing and other processes.
3. This is a design module, mainly for stuff made of iron materials. It is not the same as the entity, the thickness of the entity varies, but the sheet metal is basically the same thickness, and there are many products made of sheet metal in life. Generally speaking, the basic equipment of sheet metal factory includes Shear Machine, CNC Punching Machine/Laser, Plasma, Waterjet Cutting Machine (Laser, Plasma, Waterjet Cutting Machine)/Combination Machine, Bending Machine and various auxiliary equipment such as: uncoiler, leveling machine, deburring machine, spot welding machine, etc. Typically, the three most important steps in a sheet metal factory are shearing, punching/cutting, and folding.

To put it bluntly, sheet metal is a kind of car repair technology, that is, to repair the deformed part of the metal shell of the car, such as the car body shell is hit a pit, it can be restored to its original shape through sheet metal. Generally speaking, the basic equipment of sheet metal factory includes Shear Machine, CNC Punching Machine/Laser, Plasma, Waterjet Cutting Machine (Laser, Plasma, Waterjet Cutting Machine)/Combination Machine, Bending Machine and various auxiliary equipment such as: uncoiler, leveling machine, deburring machine, spot welding machine, etc.

Typically, the three most important steps in a sheet metal factory are shearing, punching/cutting, and folding. Sheet metal is sometimes also used as a puller. The word comes from the English platemetal, which is generally made by hand or die stamping to plastically deform some metal sheets to form the desired shape and size, which can be further welded or a small amount of machining. Forming more complex parts, such as chimneys commonly used in homes, tin stoves, and car shells are sheet metal parts. Sheet metal processing is called sheet metal processing. Specifically, for example, the use of plates to make chimneys, iron drums, fuel tanks and oil cans, ventilation pipes, elbows and heads, Tianyuan places, funnel shapes, etc., the main processes are cutting, bending, bending, bending, welding, riveting, etc. Some knowledge of geometry.

Sheet metal parts are thin-plate hardware parts, that is, parts that can be processed by means of stamping, bending, stretching, etc. A general definition is - parts with constant thickness during processing. Correspondingly, castings, forgings, machined parts, etc. For example, the outer iron shell of a car is a sheet metal part, and some kitchen utensils made of stainless steel are also sheet metal parts. Modern sheet metal processes include: filament power winding, laser cutting, heavy duty machining, metal bonding, metal drawing, plasma cutting, precision welding, roll forming, sheet metal bending, die forging, water jet cutting, precision welding, etc. .

In the current 3D software, SolidWorks, UG, Pro/E, SolidEdge, TopSolid, etc. all have sheet metal parts, mainly through the editing of 3D graphics to obtain the data required for sheet metal parts processing (such as unfolding drawings, bending Line, etc.) and provide data for CNC Punching Machine / Laser, Plasma, Waterjet Cutting Machine (Laser, Plasma, Waterjet Cutting Machine) / Combination Machine and CNC Bending Machine, etc.