The application of machining technology for automobile sheet metal parts

2020-01-08 17:13:30

With the continuous development of sheet metal processing, the demand for laser processing equipment is more and more obvious, especially in high-power laser equipment.

At present, China's CNC laser cutting technology has begun to take shape. Advanced laser cutting in combination with the application and assistance of sheet metal processing will become the key to improve the technical level of the domestic automobile industry in an all-round way. Laser cutting technology is developed with the development of the sheet metal industry. The manufacturing of automobile parts and the forming and manufacturing of automobile body are the key points of laser cutting application, Now the new technology and technology of laser cutting and sheet metal processing have become the magic weapon for manufacturers to win.

Laser cutting has a good cutting effect and accuracy, and the operation is very simple. It has many advantages over machine cutting, such as fast cutting speed, narrow cutting seam, high incision finish, micro deformation, small heat affected area, high efficiency and so on.

Laser welding can help us to realize the welding of casting parts such as equipment. A large number of laser welding can gradually reduce the weight of the car body, and has a high quality and safety performance. In addition, in combination with the application of automobile sheet metal processing technology, it has become the current domestic automobile body processing technology.

Common sheet metal links:

1. Riveting:

Rivets are often called pull rivets, and two plates are riveted together by pull rivets, which are called pull rivets.

2. Spot welding:

After the workpiece is assembled, the resistance heat generated by the contact surface of the current joint and the nearby area is applied by the pressure of the electrode for welding, and the total thickness of the spot welding shall not exceed 8mm.

3. Hole drawing and riveting:

One of the parts is a drawing hole, the other is a countersunk hole, which is made into a non detachable connecting body by riveting die. Advantages: the counterbore matched with the pumping hole has the positioning function. The riveting strength is high, and the riveting efficiency through the die is also high.

4. Tox riveting:

Definition: the connector is pressed into the die by a simple punch. Under further pressure, the material in the die "flows" outwards. As a result, a circular connection point without edges, corners and burrs will be produced, and its corrosion resistance will not be affected. Even if there is a coating or paint coating on the surface of the plate, the original anti rust and anti-corrosion characteristics can also be retained, because the coating and paint are also deformed and flowing together. The material is extruded to both sides and into the panel against the die side to form a tox connection dot.