Very painful, torture like experiments which Logan was able to survive only due to his extreme healing factor. read more
Feral by nature, Wolverine's mutation process will eventually cause him to degenerate physically into a more primitive, bestial state. After his return to the X-Men, Cable's son Genesis kidnaps Wolverine and attempts to re-bond adamantium to his skeleton. This is unsuccessful and causes Wolverine's mutation to accelerate out of control. read more
In the 1993 graphic novel Weapon X, the operation that bonds adamantium to Wolverine's skeleton is shown. He is submerged in a tank while the procedure is performed, and the metal is fed into his body through tubes attached to multiple locations on his body. read more