A scene in X-Men '97 where Gambit charges Wolverine's adamantium claws with his powers got me thinking: How exactly was the adamantium integrated with Wolverine’s skeletal structure (which I believe includes his claws)? (I'm curious if Gambit’s power affected only the adamantium or if it extended to the bone structure of Wolverine’s claws as well.)
Was the adamantium more of a surface coating or plating, keeping the metal and bone distinct? Or was the adamantium actually infused, injected, or permeated into the bone tissue itself, so that the bone is now one with the adamantium?
I'm mostly interested in the comic book Wolverine — Earth-616, to be specific. However, insights into the different iterations of Wolverine or other characters who underwent a similar adamantium-bone bonding procedure would also be appreciated.