What Are the Connection Methods of Sheet Metal Stamping Parts?

In order to meet the requirements of modern industrial development, the future sheet metal stamping parts will further develop in the direction of composite and functional. As the whole society pays more and more attention to environmental protection, plated coated sheets and light-weight material sheets (such as aluminum alloy sheets for automobiles) are bound to be more widely used, and the traditional spot welding technology largely hinders this development. Therefore, solving the connection problem of these new panels is not only the key to the wide application of these panels, but also to the quality improvement and cost reduction of modern industrial products. What are the connection methods of sheet metal stamping parts?

1. The bite seam connection of sheet metal stamping parts

Bite seam connection of sheet metal stamping parts: Bite seam connection is a connection method that folds, buckles and compresses the edges of sheet metal stamping parts to each other. Bite seam connection does not require special equipment, and its compactness is good and the connection is very reliable, commonly used in sheet metal parts with a thickness of less than 1MM. For example, our common iron and copper is connected in this method.

2. Riveting and screw connection of sheet metal stamping parts

Riveting of sheet metal stamping parts: when sheet metal stamping parts cannot meet the expected requirements, two parts are often connected into one part, which is what we often call welding. The most commonly used welding is argon arc welding, electric welding, gas welding, etc.; riveting is a non-removable connection method formed by rivets. It has the characteristics of uniform and reliable force transmission, toughness, good plasticity and easy maintenance, so it is used for the connection of certain dissimilar metals and the connection of weldable metals (such as aluminum alloys).

Screw connection of sheet metal stamping parts: generally used for detachable structures, which are characterized by simple structure, convenient assembly and disassembly, low cost, and wide application.

3. The pre-embedded connection of sheet metal stamping parts

Pre-embedded connection of sheet metal stamping parts: that is, pressing screws, studs or nuts into sheet metal stamping parts. There is generally no problem with pre-embedded studs, because the studs are specially made, and there is a groove above the hexagonal head of the stud. When the hexagonal head is pressed, the material on the panel will squeeze into the groove and can be fixed by itself. The screws are different. The screws we choose are generally not specially designed and have no extrusion grooves. Therefore, when the screws are pressed in, the extruded material has no place to go. Due to the extrusion of the material, it is difficult to control the verticality between the screw and the plane of sheet metal. Therefore, when installing additional parts, it is often difficult to assemble. The longer the screw, the more difficult to control. At this time, there is no need to adopt the method of pre-embedded connection, and it is better to connect directly with screws.