Tube bending whilst tube is subjected to - internal pressure exceeding elastic limit

摘要

Tube bending whilst tube is subjected to internal pressure exceeding elastic limit Process applies to bending of tubes made from metals having steel type elastic properties after subjecting them to an internally applied pressure which exceeds their elastic limit, when they can be easily bent by hand. The pressure is applied by the forces set up on expansion on solidification of a Bi base alloy which has been poured and sealed into the tube.