After the blind rivet is pulled with a rivet gun, the mandrel falls out. Is it qualified?

This is not eligible.

After the head of the blind rivet is broken, it should be stuck on the other side of the riveting plate. If it is pulled out directly, it may be that the material of the aluminum blind rivet is too soft or the wall thickness is too small, the deformation is too large, and the mandrel cannot be stuck. head.

https://www.yukerivet.com/news/flat-head-blind-rivet-riveting-steps/