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Sheet metal processing or sheet metal fabrication includes: folding, shearing, punching, welding, riveting, splicing and other processes. In general, the process of forming a sheet by hand or mechanical is called sheet metal processing. Sheet metal processing is to cut and bend metal materials into various shapes and their thicknesses can vary significantly. According to the materials, sheet metal fabrication can be divided into several types, including aluminum sheet metal fabrication, stainless steel fabrication and brass fabrication.

Sheet metal process:

Sheet metal processing drawing design -> Laser processing or (CNC stamping) -> Bending -> Welding Molding -> Electrostatic powder spraying or (liquid paint) -> Packaging and shipping.

1. Drawing design:

In general, the customer provide drawings or samples, then our engineers perform the measurement, design, and development, and form the machining decomposition map and assembly drawing to the production department for processing.

2. Laser processing:

It has a large laser cutting machine, it can be cut by laser cutting  such as carbon steel, stainless steel, etc material. After the workpiece is processed, the section is neat, smooth and beautiful, and the size is accurate. It has advantages for the workpiece with arc. CNC stamping can not replace the processing method.

3. CNC stamping:

With imported turret CNC punching machine, CNC punching is mainly for the thickness of product processing materials, generally suitable for materials below 2.5mm. Sheet metal processing workpieces have more holes or need to open special molds to process the workpiece. CNC punching has a certain cost advantage.

4. Bend:

After the workpiece is cut, if most of them need to be bent and formed, the CNC bending machine not only has a fast speed, but also the workpiece is processed more accurately.

5. Welding molding:

The workpiece needs to be assembled and formed after cutting the material, and the assembly method is various. Some are directly formed by non-welding processes such as screws and riveting. Generally, the mechanical casing is made of welding, and the company adopts argon arc welding, bump welding, carbon dioxide welding, etc., we will polished them after welding, so that the workpiece is relatively firm and beautiful.

6. Electrostatic powder spray:

Electrostatic powder spraying is mainly for carbon steel workpieces. In the process, oil removal and derusting, surface cleaning, phosphating, electrostatic powder spraying and high temperature baking are generally carried out. After processing, the surface of the workpiece is beautiful, it will not rust within a few years, and the cost is low.

Liquid paint: This process differs from electrostatic powder spray. It is mainly used for large workpieces. It is convenient and low-cost to use liquid paint when it cannot be handled. The liquid paint is divided into two steps, and the primer is applied to the paint after the workpiece is processed.

7. Packaging and shipping:

100% inspection before packaging and inspection data.

Advantages of Sheet Metal

Sheet metal has the characteristics of light weight, high strength, electrical conductivity (can be used for electromagnetic shielding), low cost, large-scale mass production performance, etc. It has been widely used in the fields of electronics, telecommunications, automotive industry, medical equipment and so on. For example, in computer cases, mobile phones, and MP3s, sheet metal is an essential part.

Why Choose Us for Sheet Metal Fabrication?

We have a complete set of advanced CNC sheet metal fabrication equipment, including 5 imported, high-efficiency and precision CNC punching machines, 3 CNC shearing machines, 3 CNC bending machines, 30 sets of common punching machines, welding robots, etc. We have sheet metal manufacturing line, technicians with rich experience in sheet metal processing, complete production equipment, and rich production experience and strict quality management system, providing a strong technical guarantee for fast, accurate and high quality order fulfillment. With advanced equipment and experienced operators, we also provide custom metal fabrication.

If you are looking for reliable and professional sheet metal fabrication companies  that can provide you with high quality china sheet metal fabrication services , please contact our professional team at info@duchgroup.com or contact us using the inquiry form on this website, we will provide quotes and suggestions free of charge.

Duch Group Provides customers with competitive solutions such as china rapid prototyping, mass production, small batch production, 3D printing, mold making, and injection molding. With more than 20 years of extensive production experience in the rapid prototyping industry, it is the world's largest rapid prototyping service company.

The PS foam sheet extrusion line adopts the twin-screw series high foam sheet production process, and the produced PS foam sheet is a new type of packaging material, which not only has good heat insulation and cushioning properties but also has pearl-like Appearance color. It is mainly used in the manufacture of disposable tableware. It can be used to make various types of food containers such as lunch boxes, trays, and dishes. It can also be used in the production of advertising and packaging of industrial products. It has the characteristics of high output, stable performance, a high degree of automation and high product quality.

Application
Fruit, vegetable and raw meat trays; food industry and fast food packaging; egg packaging.
Fast food boxes, bowls, trays, and other cutlery.
Medical materials; decorative materials.
Building insulation (wallpaper, filling material and ceiling).
For cold or hot polystyrene containers to hold in cooked food or ice cream.
Polystyrene can be used for printing, easy to stack, waterproof, antibacterial and good insulation.

Polyethylene foamed packages, also name as EPE packages, is kind of new type packing material with the features of damp proofing, shock proofing, sound insulation, heat preservation, and good plasticity. It is an ideal substitute for traditional packing material and used widely in the packing electronic products, daily necessities, glass, pottery, electrical household appliance, spraying, hardware product, toy etc.

PE Foam Sheet Extrusion Line is a single-screw extruder, unique screw, and economical extruding system produces extruded expanded cellular polyethylene foam sheet of innumerable closed cell in the continuous roll for cushioning packaging and insulation materials.

Our single-screw extruder, an integral component of the PE Foam Sheet Extrusion Line enables an optimal foaming and maximum output.

A unique screw provides an intensive mixing and enables the production of quality foam sheet with any cell size and density.

Our dies, specially manufactured for its high tolerance, provide an efficient process and flexibility to create the highest quality foam to meet customer’s diverse demands like EPE sheet etc.

Auto temp. control via PID temp, control or PLC controlled touch screen on customers request.
Hydraulic screen change system enables a continual production even during changing screens.
AC motor and variable frequency inverter control system are durable in any harsh factory environment.
Our Three-Way Special Cooling System inside of dies and inside of screw guarantees low-density foam with noticeably short aging time enabling direct lamination with the film.

The EPE foam sheet laminating machine is the deep processing equipment of EPE foamed sheet (pearl cotton) products and it is mainly used for the overlay of the surface of EPE foamed sheet (pearl cotton). The material of PE film, aluminized, plastic coating paper, plastic coating cloth, etc. can be chosen for it.

The epe foam sheet production line(pearl cotton) can improve the intensity with the features of damp-proofing, waterproofing, and good surface finish. It can be used for word and picture printing with improved quality and widely used in the packing of the inner lining of boxes and cases, life jacket, the liner of the wooden floor, automobile sunshade, sunshade sear of the motorcycle, household appliances, precision instrument, top-grade porcelain, etc.

The EPE foam sheet bonding machine is mainly used for the adhesive bonding and thickening of EPE foamed sheet (pearl cotton). The thickened foamed sheet (pearl cotton) can increase the intensity and thickness and it is widely used for the packaging of electronic product, building intermediate layer, sound insulation, heat preservation, etc.