• June 21, 2024
  • Shatou, Changan, Dongguan, CN
Sheet metal processing process

Sheet metal processing process

Sheet metal processing technology is an important metal processing technology, which is widely used in various fields, including automobile manufacturing, aerospace, home appliances, construction and other industries.

The processing of sheet metal parts mainly involves sheet metal processing technologies such as cutting, stamping, bending, and welding to form parts of the required shape and size. This article will introduce the specific process of sheet metal processing in detail.

1. Material selection and cutting

To begin with sheet metal processing technology, the first step is to select a suitable metal sheet as raw material. Common metal materials include iron, steel, aluminum, copper, among others. Based on the usage and requirements of the parts, select the appropriate material and cut it based on the drawing’s demands. The cutting process can be done using either manual cutting or mechanical cutting equipment, including shears, laser cutting machines, etc.

2. Sheet metal forming

Sheet metal forming is one of the key processes in sheet metal processing. Generally, sheet metal forming can be carried out by stamping, bending, and spinning. Stamping involves putting the plate into the stamping die and deforming the plate into the desired shape through the impact force. Bending is done by placing the sheet into a bending die and applying pressure to bend the sheet to the desired angle. Spinning involves deforming the sheet into a round or curved shape by rotating the mold.

3. Part welding

Welding is frequently necessary for the processing of sheet metal parts that require the fusion of multiple components. Welding is the method of partially melting sheets of metal by heating and then cooling them to create a joint. The commonly employed welding techniques are manual welding, gas-shielded welding, and solder welding. Selecting suitable welding methods and equipment is crucial to ensure the quality and strength of welded joints.

4. Surface treatment

After sheet metal parts are processed, their surface often needs to be treated to improve appearance quality and corrosion resistance. Commonly used surface treatment methods include spraying, electroplating, galvanizing, sandblasting, and more. Spraying involves coating materials being sprayed onto the surface, forming a protective layer. Electroplating coats a layer of metal on the surface through electrochemical methods, increasing the corrosion resistance of metal parts. Galvanizing involves coating the surface with a layer of zinc to prevent metal oxidation.

5. Joint polishing

In sheet metal processing, welded joints and surfaces can have imperfections and roughness. Therefore, polishing is often required to improve the quality and appearance of joints. The polishing process can be carried out by mechanical equipment or by hand, using abrasives or grinding tools to polish the surface of the joint and make it smooth and flat.

6. Assembly and packaging

After processing the sheet metal parts, they need to be assembled and packaged. Assembly refers to assembling different pieces according to the drawing requirements in order to form a complete product. Packaging refers to protecting the finished product from damage and contamination through the use of wooden boxes, foam, cartons, and other commonly used packaging methods.


Every link in the sheet metal processing process is very important and needs to be operated according to specific product requirements to ensure product quality and precision.

With the continuous development of industrial technology, sheet metal processing technology has also been continuously improved and improved, providing high-quality, high-efficiency metal processing solutions for various industries.

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