Originally Posted by WhiteTiger I believe the term is hydroforming. Most of the apps for it that I know of though use either explosives or submerged arc to generate a shock wave that forms the metal against a shell mold.Tiger |
Yes it is hydroforming and what WhiteTiger is referring to is, I think, called explosive forming. Hydroforming is used for making chassis side rails by Magna International, one of the larger auto-parts subcontractors. A steel tube is put inside a mold and inflated. Much the same as blow molding plastic but at a much higher pressure.
Regarding inflating it with air I suppose it is possible if you are completely out of your mind.