Annealing Stages:

Stress Reduction
This procedure minimizes internal mechanical loads brought on by hard work, casting, or welding and operates at a relatively low temperature.
Recrystallization
The metal's crystalline structure is changed in this state. The nuclei generated in the cold wrought metal begin to grow new grains if the alloy reaches the recrystallization or annealing temperature. The cold deformation-induced flaws and distortions are absorbed by the new grains. The grains are independent of the old grain structure and equally axed. Due to recrystallization, the alloy's mechanical characteristics (strength, flexibility) return to their pre-cold-work state.
Grain Growth
This is the growth of new grains at the expense of their neighbors. It happens above the recrystallization temperature. This undesired process causes the grain structure to become coarser.
Step Five: Slitting and Cutting
Aluminum coils could be manufactured in one very long continuous roll. To pack the coil into smaller rolls, however, they need to be sliced. To perform this function, aluminum rolls are run through slitting equipment where incredibly sharp blades make accurate cuts. A lot of force is required to perform this operation. Slitters split the roll into smaller pieces when the applied force exceeds the aluminum's tensile strength.

Product parameters