The Angle Side Roll Technique
Figure 4
Angle side rolls can reach the inside corner (A) and the outside corner (B-D) for precise bending.
The inner angle side roll can contact the inner bend on both the vertical and horizontal surfaces to form a small and accurate bending radius. The single side roll in Figure 4A is referenced to the bottom roll. Two-angle side rolls are shown in Figure 4B. The concave top roll in Figure 4C provides more forming contact surface, if needed.
The double angle side rolls can be mounted before the conventional roll station, as shown in Figure 4D. This is similar to Figure 3C in that it provides more space for large side rolls.
