MEANS FOR PROVIDING VERY SMALL BEND RADII IN TUBE-LIKE STRUCTURES

摘要

The method disclosed allows the bending of tubular structures with much smaller radius bends than is normally acceptable for the diameter of the tubing section that is being bent. The method is very useful for making various fittings which perform bent routing functions in piping systems. The method also allows more controllable stretching of the tube metal, because stretching is done prior to bending of the angle.