The stamping process of cold forming aluminum foil is slightly different from the general cold forming process because aluminum foil is usually thin and soft. The following are the stamping process steps of cold formed aluminum foil:

Material preparation:

Choose the appropriate aluminum foil material. Usually these aluminum foils are required to have a certain degree of softness and formability. The thickness of the material usually ranges from a few millimeters to tens of millimeters.

Design mold:
Design punches and dies for the desired part shape. Since aluminum foil is thin, the design of the mold needs to consider the softness and deformation characteristics of the material.

Material cutting:
Cut the raw aluminum foil into appropriately sized pieces for subsequent stamping operations.

Clamping the workpiece:
Sandwich the foil pieces between the molds, making sure they are in the correct position.

Stamping operation:
Inicie a máquina de estampagem e o punção aplica a pressão apropriada para formar gradualmente os segmentos de folha de alumínio no formato desejado da peça. Porque a folha de alumínio é mais fina, geralmente requer menor força de punção e pode exigir vários punções para moldá-lo gradualmente.

esfriar:
Como o processo de estampagem pode aquecer e deformar a folha de alumínio, uma operação de resfriamento é necessária para mitigar o impacto térmico do material. Isto pode ser conseguido através de resfriamento a ar ou resfriamento a líquido.

Descarregar peças:
After stamping is completed, the formed foil parts are carefully unloaded and inspected to ensure their quality.

Post-processing:
Post-processing operations such as cut edge removal, cleaning, painting or other surface treatments may be required as needed.

Inspection and Quality Control:
Perform quality inspections on molded parts to ensure that their size, shape and surface quality meet design requirements. Because aluminum foil is thinner and softer, requer menos força de punção e menos deformação durante o processo de estampagem. O processo de estampagem de folhas de alumínio conformadas a frio requer atenção especial ao projeto do molde e ao ajuste dos parâmetros de estampagem para garantir que a qualidade e o formato das peças atendam aos requisitos.