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What is sheet metal ?

Sheet metal processing is a type of processing that applies external force to a thin metal plate and deforms it. When metal is subjected to external force, it will deform. Once the external force is stopped, the metal will instinctively try to return to its original shape. This is called elastic deformation. When the applied force reaches a certain critical value (yield point), the metal will It cannot be restored to its original shape, this state is called plastic deformation. Sheet metal processing is a processing technology that obtains the desired shape under the condition of plastic deformation of metal. Sheet metal is a comprehensive cold working process for sheet metal (usually less than 6mm). Sheet metal processing includes shearing, stamping, cutting, compounding, folding, riveting, splicing, forming, surface treatment, etc.

Equipment for sheet metal processing

Necessary equipment for sheet metal processing includes shears, CNC punches/lasers, plasma, water jet cutting machines, bending machines, drilling machines, and various auxiliary equipment, such as decoilers, leveling machines machine, deburring machine, spot welding machine, etc.

Sheet metal processing software

In 3D software, SolidWorks, UG, Pro/E, SolidEdge, TopSolid, CATIA, etc. can be used to customize sheet metal processing services, mainly by editing 3D graphics to obtain sheet metal processing results. Required data ((such as unfolded drawings, bending lines, etc.), and for CNC drilling machines/laser, plasma, waterjet cutting machines (laser, plasma, waterjet cutting machines)/combination machines and CNC bending machines, etc. provide data.

Commonly used materials for sheet metal processing

Cold rolled plate (SPCC)

Hot rolled plate (SHCC)

Galvanized sheet (SECC, SGCC)




Beryllium copper

Aluminum plate

Aluminum profile

Stainless steel

Surface treatment (finishing) of sheet metal fabrication parts

Surface treatment of metal parts is also an essential step in the sheet metal processing process. It can prevent corrosion of parts and beautify the appearance of products. Surface pretreatment of sheet metal parts mainly removes oil stains, rust, etc. to prepare for surface post-treatment.


The main function is to beautify the appearance. Usually aluminum and stainless steel plates are considered brushed surface treatments.

The wind force of the machine hits the sand particles on the surface of the part, forming a dense layer of pits on the surface of the workpiece. The main function is to remove magazines and rust on the surface of the workpiece, increase surface adhesion, and be used for subsequent surface treatment. Commonly used materials for sandblasting: cold rolled plates, hot rolled plates, aluminum, etc.

which can be divided into gloss, matte and semi-gloss. The force of the electric field causes the powder to become polarized and adhere to the product surface with opposite polarity.

It is a commonly used surface treatment method that attaches a layer of other metals to the surface of the material to improve the corrosion resistance of the parts and achieve beautification effects. Commonly used electroplating types: zinc plating, chromium plating, gold plating, nickel plating, copper plating.

Oxidizes the metal on the surface of the component to form a thick protective film, thereby improving the corrosion resistance of the component. Usually with three primary color anodizing and black anodizing,

Its principle is similar to the imaging principle of film. Usually used for trademark logos, specific signs, remarks, etc.

Sheet Metal Fabrication industry applications

The customized manufacturing process of sheet metal can meet the requirements of different industries for accuracy, quality, appearance and function. It can form general equipment and molds, which is conducive to flexible manufacturing of small batches and multiple varieties, providing efficient and reliable solutions.

Electronics industry

The electronics industry has a high demand for high-precision sheet metal parts. For example, casings, chassis, heat sinks and other components in electronic devices such as computers, mobile phones, and tablets are all manufactured through sheet metal customization. Sheet metal customization can meet the appearance requirements and functional requirements of electronic equipment, while providing good heat dissipation performance and protection functions. 

Communication industry

The communication industry requires a large number of sheet metal customized parts for manufacturing casings, antennas, brackets, etc. of communication equipment. These parts require high precision and corrosion resistance. Sheet metal customization can meet these requirements and can be customized according to the special needs of the equipment.

Automotive industry

The automotive industry is one of the important application fields of sheet metal customization. The car’s body structure, aluminum alloy doors, seat support structures, etc. all need to be manufactured through sheet metal customization. Sheet metal customization can provide high-strength and lightweight parts while meeting vehicle appearance and safety performance requirements.

Home appliance industry

The home appliance industry also has a high demand for sheet metal customization. Home appliances such as refrigerators, washing machines, TVs, etc. require sheet metal customization of shells, front panels, connectors and other parts. Sheet metal customization can meet the appearance requirements of home appliances while providing good protection and stability. Sheet metal customization

Energy industry

In the energy industry, sheet metal customization is widely used in oil, natural gas, wind energy and other fields. For example, in oil and gas extraction, large storage tanks, pipes, and containers are required, which all need to be manufactured through sheet metal customization. In the field of wind energy, the casing and blades of wind turbines also need to be manufactured through sheet metal customization.

Construction industry

Some equipment and structures in the construction industry also need to be manufactured through sheet metal customization. For example, interior doors, window frames, stair handrails, etc. all need to be made through sheet metal customization. Sheet metal customization can meet the requirements of the construction industry for appearance and functionality while providing reliability and durability.

Medical industry

The medical industry requires high-precision and high-quality medical equipment and instruments. Sheet metal customization can be used to produce surgical instruments, medical instrument casings, infusion poles, etc. These parts need to have good anti-corrosion properties and easy cleaning properties, while meeting the appearance and functional requirements of medical equipment.

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