Jargon in hydroforming operations for the rotary-draw bending process. The “pre” prefix refers to the fact that the bending process occurs before hydroforming and does not otherwise denote any aspect of the bending process that is particular to hydroforming.
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.