Rynuusuke said:
I was using the average or must common for two countries.
The most common form of lamination is the honsanmai, which is the exact opposite of what you said.
Second, you clearly know nothing about steels! Hard-carbon yields a little then fractures violently. Medium is less sudden aka violent and more giving. Soft carbon steel is the most giving and breaks the "cleanest" of the three, excluding pure iron. Unless you have a degree in Material Engineering sub-discipline of Mechanical Engineering, like me, just shut up!
I know nothing? You just repeated what I said and proved my point. Why would you make the core of a sword out of something that violently fractures violently [sic, just for effect
] under stress or impulse and that has greater rigidity so that it transfers vibrations back into the hand? Why would you make the edge out of something that is more malleable and prone to dulling? I really don't give a crap about your degree, since you're applying that knowledge incorrectly. Also, I have quite a few years of chemistry and physics under my belt; do stop being so condescending or your stay here will be short and humiliating.
Thirdly, there are always exceptions to any given pattern and always will be. To include them is a waste of time in that instance and didn't apply whatsoever to the guys comment. Congrats, you brought up exceptions that anyone who knows anything about Japanese swords (btw, I am very familiar with the above exceptions) would know.
Apparently you aren't that familiar, since you inverted the types of steel used in the lamination.
And one more thing, try damaging a high-strength (brittle) alloy next-time you are in a workshop. Preferably with your hands or something remotely accurate. It isn't that easy. Now the tool you use would probably be tungsten-carbide drill bit. Which is very significantly harder than anything that people could produce in that time period. It would be equivalent to taking a revolver back to the Medieval Period. So far beyond their scope of capabilities it is a retarded comparison.
Yes, because a drill is a perfect test of how a piece of hard metal acts under bending, tensile, compressive, or shearing forces or high impulse.