What is the elimination of internal stresses in aluminium sheets

What is internal stress relief for aluminium sheets? Many customers do not know what internal stress relief is when they buy aluminium sheets. And how this internal stress is eliminated. Let's find out together today!

Aluminium plate in the production process, because of the heat and extrusion, resulting in uneven density between the crystals, the energy is not completely released, accumulated in the internal aluminum plate, this energy is called internal stress. Certain users of the production process (such as heating, bending, deep punching, stretching, etc.) will release the internal stress of the aluminum plate, resulting in bending, wavy lines, surface inequality, so the need to first release the internal stress of the aluminum plate.

The process of eliminating internal stress is very simple, after the aluminium plate goes down the assembly line, the manufacturer will add a process, using the machine to do a little stretching on the aluminium plate, which can release the energy inside the aluminium plate. The state of the aluminium sheet with internal stress relief is indicated by the number Tx51, for example: 6061T651, 6082T651, etc.