Iron Man's origin in the comics involves Tony Stark getting captured and using his engineering skills to create the first Iron Man suit to escape. After that, he continued to improve and develop the technology to become the hero we know.
Iron Man isn't alive. The comic universe is complex and his character's story has taken many turns, but as of now, he's not among the living characters.
In certain comic arcs, Iron Man's fate was sealed and he passed away. But comic universes are complex and sometimes characters can return or have alternate timelines.