Causes and solutions of scratch defects in Aluminum alloy waterproof solar rail stamping forming

The scratches on the Aluminum alloy water proof solar rail are mainly caused by the relative sliding friction between the mold and the sheet during the forming process. In bending, stretching and other processes, the punch, die and soft aluminum plate come into direct contact and slip. Due to the much lower hardness of aluminum compared to mold steel, the surface of Aluminum photovoltaic bracket accessories is easily scratched and forms obvious scratches. Ordinary bending structures cannot avoid sliding contact, so scratches are almost impossible to avoid without protection and optimization.

Before optimizing the Aluminum alloy water proof solar rail structure, scratches caused by external factors should be ruled out first. Key inspection is needed: whether there are iron filings, dust, or foreign objects on the surface of the sheet metal before forming; Whether there are excessive burrs on the bent edge; Is there any damage, oxide scale, or impurities on the surface of the raw materials; Is the working surface of the Aluminum accessories for solar mounting mold smooth, free from bumps or debris. These issues will exacerbate scratches during stamping, and early treatment can significantly reduce defect rates.

The optimal way to fundamentally reduce scratches on Aluminum mounting brackets is to change the friction form from sliding friction to rolling friction. By installing a roller structure in the mold, the contact mode is changed from sliding to rolling, greatly reducing surface damage. For products with limited structure that cannot use rollers, the mold inserts can be treated with titanium or chrome plating to improve the surface smoothness and hardness of the Aluminum clamp hook for roof photovoltaic support, reducing the risk of scratching. In addition, when the structural conditions permit, using a flap structure can completely avoid relative friction and achieve a nearly scratch free forming effect.

When the structural optimization of Aluminum solar panel end clamps for PV mounting system still cannot meet the ultra-high surface requirements, further protection can be achieved through process means. Using specialized stamping oil during the forming process can provide lubrication, reduce wear, and lower temperature; Applying protective film or plastic film on the surface of Aluminum solar middle clamp can directly isolate the mold from the board, with significant protective effect, but it will correspondingly increase production costs. Enterprises can make a comprehensive selection based on product appearance grade, cost budget, and batch size.

If you need support for optimizing the structure of Aluminum alloy water proof solar rail molds and customizing high-precision scratch free parts, please feel free to contact us. We will provide you with professional technical solutions and reliable product support.