Effect of surface pre-treatment on the peel strength of warm roll bonded aluminum sheets

Abstract EN

In this work, the effects of a mechanically pre-treating the surface structure of warm rollbonding of aluminum 1100 alloys was investigated.

Sandblasting with Al2O3 was used to pre-treat the metal surface.

The parameters that were investigated are blasting time (3 s and 9 s) and the distance between the nozzle and the substrate (300 mm and 500 mm).

A 3D profilometer was used to confirm the results of the efforts to increase surface roughness.

The adhesion of sandblasting Al alloy 1100 strips characterized by measuring the peel strength.

The results show that sandblasting time has a major effect on the peel strength, while distance induced only a minor effect.