SUS Waterproof Sheet Metal Frame Powder Coating ODM OEM Outdoor

Modern Design Outdoor Waterproof ODM OEM Sheet Metal Frame Cabinet Manufacturing

Processing technology of sheet metal chassis

According to the basic processing methods of sheet metal parts, such as material, bending, stretching, forming and welding. This specification describes the process requirements for each processing method.

1. Cutting

According to the different processing methods, the blanking can be divided into general punching, number punching, shear cutting, laser cutting, and wind cutting. Due to the different processing methods, the processing technology of the blanking is also different. Sheet metal blanking methods are mainly digital punching and laser cutting.

2. Bending

When the material is bent, the outer layer is stretched while the inner layer is compressed at the rounded corners. When the thickness of the material is constant, the smaller the inner r, the more serious the stretching and compression of the material; when the tensile stress of the outer fillet exceeds the ultimate strength of the material, cracks and breaks will occur. Therefore, the structure of the bent part The design should avoid too small bend radius.

3. Stretch

The radius of the fillet between the bottom of the stretched part and the straight wall should be greater than the thickness of the plate, that is, r1≥t. In order to make the stretching process more smoothly, generally r1=(3~5)t, and the maximum fillet radius should be less than or equal to 8 times the plate thickness, that is, r1≤8t. As the tensile parts are subject to different stress levels, the thickness of the material after stretching will change. Generally speaking, the center of the bottom maintains the original thickness, the material at the bottom rounded corners becomes thinner, the material at the top near the flange becomes thicker, and the material at the rounded corners around the rectangular stretched piece becomes thicker.

4. Forming

Pressing ribs on plate-shaped metal parts helps increase structural rigidity. Shutters are usually used for various covers or casings for ventilation and heat dissipation. The forming method is to cut the material through the edge of the punch. The rest of the punch simultaneously stretches and deforms the material to form an undulating shape with one side open.

5. Welding

Welding methods mainly include arc welding, electroslag welding, gas welding, plasma arc welding, fusion welding, pressure welding, and brazing. The welding of sheet metal products is mainly arc welding and gas welding.

Arc welding has the advantages of flexibility, mobility, wide applicability, and all-position welding; the equipment used is simple, durable, and low maintenance costs. However, the labor intensity is high and the quality is not stable enough, which depends on the level of the operator. Suitable for welding carbon steel, low-alloy steel, stainless steel, copper, aluminum and other non-ferrous alloys above 3mm. The gas welding flame temperature and properties can be adjusted. In arc welding, the heat source is wider than the heat affected zone, the heat is not as concentrated as the arc, and the productivity is low. It is applied to thin walls. Welding of structures and small parts can weld steel, cast iron, aluminum, copper and its alloys, hard alloys, etc.

Shenzhen Adkiosk started from a shell designing department at 2007, is a professional commercial display solutions provider. We are able to provide customers from conceptual creative design to product implementation, from professional manufacturing R&D innovation to final production and sales. We accept OEM and ODM orders.

Main products include but not limited to LCD advertising player, interactive touch panel digital signage, LCD video wall, outdoor digital signage, self-service terminal, sharing charger kiosk, shared charging cabinet, etc.