Special process requirements for Aluminum stamping in automotive manufacturing

The forming process of Aluminum mounting brackets is similar to that of ordinary cold plates, but requires stricter management of molds and raw materials. In production, the production of aluminum chips can be reduced by adding processes and reducing the use of waste knives. The mold structure, surface hardness, and smoothness need to be specially adapted to the characteristics of aluminum materials.

Aluminum materials are prone to age hardening during storage, leading to an increase in yield strength and a decrease in edge wrapping performance. Therefore, material feasibility verification is required before production; Drawing oil and rust proof oil are prone to volatilization, and should be used immediately or cleaned and oiled promptly after unpacking; At the same time, the surface of aluminum is prone to oxidation, and it is strictly prohibited to place it outdoors. It must be sealed and specially stored to ensure the stable formation of Aluminum photovoltaic bracket accessories.

The aluminum alloy body composed of Aluminum stamping is mainly connected by resistance welding, CMT cold transition welding, and argon arc welding, while a large number of riveting and punching riveting connection processes are used. Rivetless connections are formed by cold extrusion to form embedded joints, which can adapt to different materials and thicknesses of plates without the need for additional connectors.

Punch riveting connection has high strength, simple process, corrosion-resistant joint sealing, and can visually detect quality. Resistance welding has less dust and high safety; CMT welding and argon arc welding are prone to generating aluminum magnesium dust, which poses a risk of explosion. Therefore, dust removal and explosion-proof measures must be taken to ensure the safe and reliable assembly of Aluminum accessories for solar mounting.

Aluminum alloy waterproof solar rail has lower toughness than steel, and roller edge pressing requires control of pressing force, speed, and angle. The speed is generally controlled at 200-250mm/s, and the single pressing angle is not greater than 30 °. V-shaped pressing is prohibited and must be carried out at around 20 ℃ room temperature.

Roller edge is divided into ordinary pressing and European pressing, which are respectively suitable for pressing conventional parts and long components; The bottom mold and inserts need to be polished regularly to avoid aluminum shavings scratching the workpiece. Aluminum clamp hook for roof photovoltaic support needs to be water washed and passivated before welding to remove oxide film and oil stains, improve the adhesion between the weld and adhesive layer, and then dried according to specifications to ensure stable coating and welding quality.

The usage of aluminum alloy in automotive body, transmission, suspension and other components continues to increase. Aluminum solar panel end clamps for PV mounting system are key components for achieving energy conservation, emission reduction, and improving safety and comfort.

Strictly implementing the special process requirements for stamping, welding, rolling edge, and coating can effectively solve the processing difficulties of Aluminum solar middle clamp, ensuring the dimensional accuracy, structural strength, and appearance quality of the vehicle body. With the upgrading of the automotive industry towards low-carbon, safe, and efficient directions, the aluminum forming process will continue to be optimized, further promoting the popularization and development of automotive lightweight technology.

If you need process consultation, customized development, or bulk procurement of Aluminum stamping for automobiles, please feel free to contact us. We can provide stable and reliable technical and product support for your project.