How to control the quality of sheet metal shell processing?

　　As we all know, the use of sheet metal shell can not only effectively protect the internal equipment, but also carry the corresponding equipment. Therefore, in order to better protect the use effect of sheet metal shell, we must do a good job of relevant quality control during the processing, otherwise, it may cause great inconvenience to use.

　　The quality control of sheet metal shell processing should be done in the following aspects:

　　1. When bending, it is necessary to bend according to the dimensions on the sheet metal shell processing drawing. The thickness determines the tool and knife groove used for bending. Preventing the product from colliding with the tool and causing deformation is the key to the selection of the upper die. The selection of the lower die is determined according to the thickness of the plate.

　　2. Welding includes argon arc welding, spot welding, carbon dioxide protection welding, manual arc welding, etc. When spot welding the sheet metal shell, the welding position of the workpiece must be considered first. In batch production, consider making positioning tooling to ensure the accuracy of the spot welding position.

　　3. The processing methods of sheet metal shells on the surface of different plates will be different. After cold plate processing, the surface is generally electroplated. After electroplating, no spraying treatment is performed. Phosphating treatment is selected, and spraying treatment is performed after phosphating treatment. The surface of the electroplated plate is cleaned, degreased, and then sprayed.

　　4. After assembly, the sheet metal shell enters the packaging stage. After the workpiece is inspected, it is placed in a special packaging bag for protection.

　　To sum up, these are some aspects of quality control of sheet metal shell processing that should be done well. In the process of sheet metal shell processing, in addition to quality control, we also do a good job of quality inspection independent of production, so as to better ensure that the quality of sheet metal shell processing can meet the requirements.