What mechanical stretching method to remove aluminum sheet stress principle?
The study results showed that mechanical stretching up to eliminate the residual stress of more than 90%. However, the method is only suitable for parts with simple shapes and tensile aluminum alloy sheet before microstructure uniformity higher, and more for aluminum plants.
Principle mechanical stretching method is to eliminate stress in aluminum alloy sheet after quenching, permanent stretch applied to an amount of plastic deformation in the rolling direction, so that the tensile stress and the original residual stress of quenched after superimposed plastic deformation, residual stress to ease and release.
