Sheet metal is a comprehensive cold working process for thin metal sheets (usually below 6mm), including shearing, punching/cutting/laminating, folding, welding, riveting, splicing and forming (e.g. car bodies). The distinguishing feature is the consistent thickness of the same part. The product produced by the sheet metal process is called a sheet metal part. The term sheet metal parts generally differs from industry to industry and is mostly used as a term of endeavour when assembling.

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Sheet metal shell processing refers to sheet metal processing technology. The processing of sheet metal chassis mainly includes shearing, stamping, folding, welding and bonding. The stamping process is generally divided into a stripping process and a forming process. Sheet metal shell processing is a comprehensive cold processing technology for sheet metal, including shearing, punching, cutting, laminating, folding, welding, riveting, splicing and forming. The equipment required for processing includes shears, CNC punching machines, plasma and water jet cutting machines, laminating machines,, bending machines and other processing equipment for the stripping process is to separate the stamped parts from the blanks along a certain contour line during the punching process. The forming process is the deformation of the press blank without damaging the shell and transforming it into the desired shape.

What are the manufacturing steps for sheet metal shell processing

Chassis shell design drawings: Customer drawings or samples should be measured, designed and disassembled by technical personnel, and production processing breakdown and assembly drawings should be submitted to the production department for processing.

Laser processing of the shell: laser cutting of carbon steel, stainless steel and other materials with laser cutting machines, so that the produced metal sheet is regular and not rough.

CNC punching of shells and chassis: CNC punching machines are mainly used for processing thin materials, generally applicable to 2.5mm.

Shell bending processing: depending on the workpiece material, if most of the workpieces need good bending and forming, it has multiple computerised bending machines, which are not only fast, but also provide a good guarantee for subsequent welding and assembly

Welding of the chassis housing: Here we should pay attention to whether the welded structure is strong enough and whether it has a flat appearance. Metal plates for mechanical housings are the most commonly used. They are welded in a single operation using argon arc welding, contact welding and carbon dioxide welding. After welding, the metal plates are polished to make the chassis shell relatively strong and beautiful.

Powder coating; electrostatic powder coating is mainly used for welded parts to prevent rusting of welded joints and therefore surface treatment is required. In general, this first requires oil and rust removal, surface treatment and cleaning, phosphating, electrostatic powder coating and high temperature baking. In this way, the surface of the plate and shell is smooth and flat and will not rust for several years, while reducing production costs The plate and shell processing factory is mainly engaged in plate and shell processing, plate and shell manufacturing, custom processing, design and manufacture of mechanical parts, tooling and fixtures, bottom frame welded parts and other equipment. Business development is synchronised with design and development to provide technical support to customers, reduce process costs and increase effective productivity.

Sheet metal shell processing refers to sheet metal processing technology. The processing of sheet metal chassis mainly includes shearing, stamping, folding, welding and bonding. The stamping process is generally divided into a stripping process and a forming process.