Proses pengecapan kerajang aluminium membentuk sejuk sedikit berbeza daripada proses pembentukan sejuk umum kerana kerajang aluminium biasanya nipis dan lembut. Berikut adalah langkah-langkah proses pengecapan bagi kerajang aluminium berbentuk sejuk:

Penyediaan bahan:

Pilih bahan aluminium foil yang sesuai. Biasanya kerajang aluminium ini dikehendaki mempunyai tahap kelembutan dan kebolehbentukan tertentu. Ketebalan bahan biasanya berkisar antara beberapa milimeter hingga berpuluh-puluh milimeter.

Acuan reka bentuk:
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:
Start the stamping machine and the punch applies appropriate pressure to gradually form the aluminum foil segments into the desired part shape. Because aluminum foil is thinner, it usually requires lower punching force and may require multiple punches to gradually shape it.

cool down:
Since the stamping process may heat and deform the aluminum foil, a cooling operation is required to mitigate the thermal impact of the material. This can be achieved through air cooling or liquid cooling.

Unload parts:
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, ia memerlukan kurang daya tebukan dan kurang ubah bentuk semasa proses pengecapan. Proses pengecapan kerajang aluminium membentuk sejuk memerlukan perhatian khusus kepada reka bentuk acuan dan pelarasan parameter pengecapan untuk memastikan kualiti dan bentuk bahagian memenuhi keperluan..