How induction bending works
A narrow band of the steel is heated with an induction coil and bent while it moves through the machine. Only that band deforms, so the rest of the section keeps its shape. That makes tight radii possible in heavy pipes and beams.
When roll bending is the better choice
Roll bending shapes the section cold between three or more rolls. It suits large radii, long arcs and series of identical parts, and it leaves the material properties largely unchanged.
