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					Originally Posted by S.Al-Anizi
					
				 
				Some say that the japanese werent bright enough to know how to harden, then temper their blades, thus differential heat treatment was their way to go.I wouldnt want a sword thats easily bent in battle. 
			
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 If harden = to make an hard cutting edge and temper = relief the stresses with a  subsequent (softer) heating, well japaneses where well aware and able to make both, even in older times. It's a matter of Schools. Somes applied tempering, some not. TOGETHER with differential hardening.
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					Originally Posted by S.Al-Anizi
					
				 
				I wouldnt want a sword thats easily bent in battle. 
			
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 Samurai too. I wonder why the heck they used the same type of technology
for almost 1000 years being such blades so prone to bending...