Aluminum Rolling Texture Development
Aluminum rolling texture development is the process by which aluminum sheets acquire a pronounced anisotropy of mechanical properties through rolling.
Physico-chemical mechanism of action
During the rolling of aluminum sheets, the crystal structure aligns in the direction of the strain. This leads to a preferred orientation of the crystal grains, which affects the mechanical properties depending on the direction of the strain.
Metallurgical relevance & risks during welding
The pronounced anisotropy can lead to different stresses and strains when the aluminum sheet is stressed in different directions during deep drawing. This increases the risk of cracks or deformations. In addition, certain welding processes can intensify or weaken the anisotropy.
Workshop practice & action instructions
When deep drawing aluminum sheets with developed rolling texture, it is important to consider the strain direction. When welding, use a direction that offers the highest mechanical strength. If necessary, special welding processes can be used to minimize or correct the anisotropy.