A feature of interlock system for bending dies; the relief machined into a clamp or pressure die block, above and below the cavity, to clear the interlocking tabs of the bend die. See interlock (bend die).
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.