A heat treatment process which cases a steel component with a very hard skin, usually with carbon. Carburizing, nitriding, and flame hardening are good examples of case-hardening. Case-hardening is a good process for hardening bend dies, clamp dies, and pressure dies because it combines a hard wear surface with toughness — i.e., resistance to chipping and breakage. Compare through-hardening.
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.