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[Picture Hvy] Some of my Orishigane for Japanese Blades.


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A new tanto forged from a Sunobe I made awhile back with the same billet. Hira-zakuri.

 

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I went back to that test blade I made from this material and went to the side I had left off with Uchigumori-Ji benchstone. On this I had used very hard and fine Jizuya, and then kanahada nugui. The b

It is close to what I wanted but I'm practically never satisfied with anything so it's a constant battle.   Over the weekend I progressed through the stones but realized I had missed scratch

From that 180 grit stone I went to a 220, 320, 600, and then 1000. The 220-1000 are a hard coarse synthetics I originally invested in for kitchen knives, but specifically and especially for yanagiba d

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Some interesting effects with hamon and hada after HT.

 

This is after using a 180grit stone. No acid.

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Ok, so I thermal cycled a sample piece of the bar I just formed into a small tanto, casted it in a puck of epoxy and polished it for micros.

 

Given then 65RC at 1485F, the explosive spark, and the starting materials being ultra high carbon and even some white cast, what I seen here is a lot of GBC. The heavier white areas are still diffusing into the adjacent layers, even after 12 folds. Amazing.

 

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From that 180 grit stone I went to a 220, 320, 600, and then 1000. The 220-1000 are a hard coarse synthetics I originally invested in for kitchen knives, but specifically and especially for yanagiba due to thr shinogi present there.

 

I have coarser natural arato stuck in Japan and shipping currently, but these synths work great as well.

 

From there I moves back to a coarse Iyo-to which could be interpreted as a ~500 grit stone, but it is where I currently begin natural progressions.

 

After thr Iyo-to, I moved onto the Binsui-do. The Binsui is could be interpreted as a 800-1000 grit stone, but is again, a brick of natural stone goodness. Next will be Kaisei-do, though not pictured yet.

 

I honestly haven't really shared my natural stone collection here before, but it has grown quite extensive, and have left spent 5 years in pretty regular and often every day for months on end learning tennen-toishi.

 

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Edited by Daniel Cauble
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Posted (edited)

Tendrils look more crystalline now that the steel is clearing up. Again...cementite...

 

Also, for some reason my pic is flipped.

 

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Edited by Daniel Cauble
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I don't know if you are pleased with the outcome, but I'm thinking this is pretty cool stuff!

Edited by Joshua States
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5 hours ago, Joshua States said:

I don't know if you are pleased with the outcome, but I'm thinking this is pretty cool stuff!

It is close to what I wanted but I'm practically never satisfied with anything so it's a constant battle.

 

Over the weekend I progressed through the stones but realized I had missed scratches from the Kaisei-do and used the Chu Nagura in thr wrong direction, which allowed thr scratches from the Kaisei to remain hidden until I made it to the Koma Nagura.

 

Well I was impatient and decided to power through anyway, leaving the scratches for now before going back in stones and polishing again.

 

I did a quick Hadori to see how it would look. Not too bad.

 

Pictures are orienting pretty dumb lately but whatever.

 

Chu Naguras

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Koma

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Uchigumori-Hato

 

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Uchigumori-Jito

 

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Then I did a quick hadori which involves fingerstones and nugui. This darkens the Ji and whitens the Ha.

 

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These are the most apparent scratches left over by the Kaisei, but there are others on the blade. I mistake in polishing and costing many hours.

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Legacy scratches are the bane of my existence, and the polisher’s reason for the saying “the slower you go, the faster you’ll get done”.

 

Dan

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22 minutes ago, dan pfanenstiel said:

Legacy scratches are the bane of my existence, and the polisher’s reason for the saying “the slower you go, the faster you’ll get done”.

 

Dan

Yea, that's for sure. I realized it pretty early on, but I was too concerned with seeing how some of the metallurgy evolved. It's pretty unusual, and honestly, pretty hard. I left thr blade in a very hard state at 64 RC at the Ha, and with thr mixture of so much cementite in the Ji, it's a tougher polish.

 

Usually I'm making sanmai kitchen knives and go through the stages of polishing those similarly, but still a bit different. 

 

Which reminds me, I haven't shown knives like that here in years.

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