The radius of the arc of the bend. This is a general term that does not precisely specify the radius, therefore it can mean inside radius, centerline radius, or any other arbitrary reference point. When specifying a tube bend, it is necessary to state from which reference point the magnitude of the radius is determined. The preferred reference point is the centerline radius for round tubing and the inside radius for square and rectangular tubing.
FREE Tube-Bending Guide Download:
A complete guide to the principles of the 4-Step set-up for tube-bending tools
This is a printable handbook showing how to implement in four standardized steps the “forward mandrel” set-up for rotary-draw tube-bending machines and establish process control over the so-called black art. The procedure is based upon the guiding principle that the tools make the bend and takes advantage of the inserted design of modern mandrel tooling.