Pipe bending machines are typically human powered, pneumatic powered,
hydraulic assisted, or electric servo motor. In the pipe bending operation the
tube may be supported internally or externally to preserve the cross section of
the pipe. In operations where there is flexibility in the shape of the pipe, the
pipe does not need to be supported, however there will be some deformation
in the both the cross section of the overall pipe and the wall thickness in
different areas of the bend.
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