Some problems need to be paid attention to when processing automobile sheet metal parts

2019-12-25 10:17:02

Now there are many kinds of processing methods involved in the metal processing industry, and sheet metal processing is one of the more common processing methods. During the processing and production, the staff need to learn the processing technology first, so as to ensure the processing quality and accuracy of materials. This kind of processing method contains a lot of contents. People can complete the technological process of blanking and blanking when processing. After these processing procedures, the production purpose can be achieved. During the processing and production, workers need to pay attention to the parameter characteristics and technological methods, which are important aspects that can not be ignored.

Before sheet metal processing, the staff also need to know the processing scope. Generally, when processing, they can select copper products, galvanized steel, stainless steel and other materials to complete the processing process. Therefore, this processing method has a wide range and can meet the processing and production needs of different industries. During the processing, people can choose materials flexibly Do not worry that the material does not meet the processing requirements and affect the progress of the production task.

In the processing of automobile sheet metal parts, we need to pay attention to several problems. First, the staff should check the materials before processing, and unfold the materials for processing. The unfolding way of the materials should be correct. In this way, the materials can be saved and the machining purpose can be achieved. During the processing, we should also pay attention to the selection of the gap and the binding effect of the materials.

During sheet metal processing, the staff should have some knowledge of the production process and processing methods, so as to better complete the processing tasks and ensure the production of workpieces.

The body structure and materials of automobile vary greatly, and the application of load-carrying body is gradually promoted. Therefore, the requirements of body repair technology are getting higher and higher. The repair technology of automobile sheet metal parts not only requires the restoration of the body shape, but also ensures that the performance of the repaired body is close to the state before the damage, so as to avoid the occurrence of the second accident.

There are five main repair methods: knock off repair method, pry top repair method, stretching repair method, heating shrinkage method, pleating method, etc.

1. Knock out the repair method.

For a small range of local bulges and depressions, the knock-out method can be used to repair single and shallow bulges and dents, so as to make the metal produce extension deformation and return to its original shape.

2. Prying repair method.

Use a flat knife (or spoon shaped plate) and a sharp tool (such as a variety of pickaxes) to pry the sunken part of the top, so that the sunken part gradually returns to the original shape.

3. Stretch repair.

It is also one of the commonly used methods of concave shaping to pull out the concave with the pull out device, which includes a suction cup, a pull cylinder and a special puller. A suction cup is arranged at the end of the pneumatic concave puller to generate vacuum, and the force exerted by the inertia hammer pulls the metal concave part back to the original shape. The screw at one end of the pull rod puller is screwed into the hole opened in advance at the concave part, and the concave part can be eliminated by repeatedly pulling the handle with one hand, and then the through hole is blocked with filler. In order to avoid the inconvenience of drilling, the pin can be used instead of screw in screw in the spot welding of the concave part, and then the tool can be used to cut off the spot after pulling out, so as to maintain the integrity of the metal surface.