lukebailey Posted November 24, 2007 Share Posted November 24, 2007 YOu see it about 7 minutes into this video. It is a method of differential hardening. The Samurai used it for their sword blades. Anyone done this? Has it been used for purposes other than swords?YouTube - The traditional Making of a Samurai Sword (Katana) Quote Link to comment Share on other sites More sharing options...
Robert Mayo Posted November 25, 2007 Share Posted November 25, 2007 Yes you can use it on any basic shallow hardening steel I have my own way of doing clay hardening i use furnace cement. I did not watch the video because of my stinking dial up but here is a knife i made using my way. Bobhttp://www.iforgeiron.com/forum/f14/funky-hunter-fighter-3700/ Quote Link to comment Share on other sites More sharing options...
Mende Posted November 25, 2007 Share Posted November 25, 2007 I think all swords must be treated in this manner. . maybe not huge spring steel greatswords. . but most of em ...especially knives. . Quote Link to comment Share on other sites More sharing options...
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