The Bending Process Part 1

The most common processes for bending pipe and tube are: ram, roll, rotary-draw, heat-induction, and sand-packing and hot-slab forming. Ram pipe bending was probably the first method used to cold-form materials.

This method pushes a die against the tube or pipe by a mechanical force, forcing the pipe to conform to the contours of the die. Lacking internal support in the pipe, this bending process creates some cross section ovality. The thinner the wall the more deformation of the pipe is seen.

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