Aluminum sheet metal processing: What key technologies are needed to master for high-precision processing?

What are the core process flows of Aluminum sheet metal processing?

High-precision Aluminum sheet metal processing requires four key links, and each link is linked. First of all, prepare raw materials, high-purity aluminum materials (such as aluminum materials with a purity of more than 99.9% commonly used in the aerospace field) and obtain blanks that meet the size requirements through precise cutting. The purity of raw materials directly affects the strength and processing performance of the final product. The second is processing and molding, using CNC cutting machines, stamping machines and other equipment to shape the shape. CNC cutting can control the error to a very small range, and stamping can quickly produce specific molded parts. The surface treatment process is crucial. Anodizing can enhance hardness and corrosion resistance, while spraying can improve aesthetics and weather resistance, and adapt to the needs of different application scenarios. Finally, the details are processed, and the structure is optimized through bending, welding, chamfering and other processes to ensure component assembly accuracy and use safety.

How to solve the problem of deformation and accuracy in processing?

Due to the soft texture of aluminum plates, they are prone to deformation and accuracy deviation during processing, and need to be targeted through process optimization. In response to deformation problems, the aluminum plate can be preheated before processing to reduce internal stress caused by temperature difference; optimize parameters during processing, such as reasonably selecting speed and sequence during CNC cutting, and accurately controlling the angle and force during bending; after processing, heat treatment or vibration elimination method is used to release residual stress. For precision control, high-precision processing equipment and CNC systems are required, and precision transmission devices are combined to ensure positioning accuracy; multiple machining and gradual approximation are used to achieve micron-level accuracy requirements. In addition, the use of special fixtures to fix the aluminum plate can prevent positional deviation caused by vibration during processing.

What are the special requirements for processing accuracy in different application fields?

The accuracy of Aluminum sheet metal processing needs to be flexibly adjusted according to the application scenario, and high-end fields require particularly strict accuracy. Aluminum plate components in the aerospace field need to achieve micron-level accuracy, because slight dimensional deviations may affect the aerodynamic performance and structural safety of the aircraft, and there are strict standards for raw material purity and processing errors. Electronic equipment housing requires high surface flatness and small dimensional tolerances, and the error usually needs to be controlled within 0.1 mm to ensure adaptability to internal components. Although the accuracy requirements in the field of architectural decoration are relatively loose, the processing of complex shapes such as arc shapes and wave shapes must ensure dimensional consistency to avoid gaps during assembly. Medical equipment components need to take into account both accuracy and surface finish to prevent bacteria from growing.