posted on Oct, 20 2012 @ 11:43 PM
Originally posted by Hefficide
reply to post by BlackProjects
The secret to the ancient swords from Japan was that, during forging, they would quench the hot blades in the bodies of peasants, prisoners, or
slaves. The proteins from the bodies gave the steel properties that made it harder, once cooled and easier to fold and work with while hot.
It took the west a very long time to catch up. It was discovered that simply putting animal pelts into the quenching water would accomplish the same
Anyway, that was the "magic" behind Japanese swords.
A source would be helpful, as I have NEVER heard any such thing. Plunging a bar into a hunk of flesh during yaki-ire is not consistent, in terms of
specific heat transfer. The hardness is guided to the edge by virtue of clay and other mixtures arranged so to cause slower heat transfer at the
places other than the blade edge. The rate of success is determined by many factors, and, so I have read, not every sword survives this process. They
can, however, be re-quenched.
edit on 21-10-2012 by davidmann because: (no reason given)
edit on 21-10-2012 by davidmann because: (no reason