Iwasaki Kamisori Repair/Restore

**JimR** · 12-16-2011, 02:16 PM

Oz, the black is charred mud left over from the tempering--you've seen it in blade making videos, I'm sure, how the hamon is made by using clay to "insulate" parts of the blade. Iwasaki kamisori received a full clay coating before final heat treating.
If you check this post on my blog: Been and Gone, Sanjou City Post 2: Conception of a Kamisori | Eastern Smooth: The Blog

about halfway down you can see some pics of razors fresh out of heat treat. The clay remains on the whole razor, and is only removed in the grinding.

**gssixgun** · 12-16-2011, 08:15 PM

Very nice save Ozmodius

Let us know how you decide to hone it all out...

**KindestCutOfAll** · 12-16-2011, 08:27 PM

Great work Oz!

I'm jealous. An Iwasaki is toward the top of my wish list.

Currently too expensive for me.

**onimaru55** · 12-17-2011, 12:03 AM

Originally Posted by TURNMASTER

Great work on the magnified photos. Microscope and a good camera I assume? Roughly 20x?
Jeff

Thanx Jeff. Yes an older Fuji S9500 & a Veho 20-200x USB m'scope. The first lot of bevel pics are near the 200x end.

Originally Posted by mainaman

Oz,
if I am not wrong that it Kurouchi finish, it is basically the crud after the forging that has not been cleaned off the blade. This is a very popular finish on Japanese style chef knives, it is great way to prevent rust.

Thanx Stefan . Of course it is

I should have known that. Oh well, that's my dumb question for the week

I'd still like to find a way to chemically reproduce it as the original process is out of the question.

Originally Posted by JimR

Oz, the black is charred mud left over from the tempering--you've seen it in blade making videos, I'm sure, how the hamon is made by using clay to "insulate" parts of the blade. Iwasaki kamisori received a full clay coating before final heat treating.
If you check this post on my blog: Been and Gone, Sanjou City Post 2: Conception of a Kamisori | Eastern Smooth: The Blog
about halfway down you can see some pics of razors fresh out of heat treat. The clay remains on the whole razor, and is only removed in the grinding.

Thanx Jim. The charred mud would account for the dusty texture eh. Would have been great to go & hinder/help Mizu san with the razors.
I think you earned your 'Sanjyo Kaji' t-shirt

Originally Posted by gssixgun

Very nice save Ozmodius

Let us know how you decide to hone it all out...

Thx G. Before I jump into it I'm gonna do some research on setting up JP plane & chisel blade geometry.
As I've kinda 'reduced' the bevels. I reckon I may need to set a small bevel on the ura (back, stamped side) first.
Any ideas appreciated

Thanx to everyone for comments & input

**onimaru55** · 12-17-2011, 12:26 PM

I've followed this up with a new thread in the 'advanced honing' forum. Tons of pics http://straightrazorpalace.com/advan...e-restore.html

**Mike Blue** · 12-17-2011, 03:02 PM

Reading both the two threads was the best coffee time I've had for a long while. That was a lot of long patient work. Thanks Oz.

**onimaru55** · 12-17-2011, 11:59 PM

Cheers Mike . I always enjoy sharing a coffee with friends

**celestino** · 12-23-2011, 04:52 AM

Holy moly!! What a disaster!! Poor baby!!

**celestino** · 12-23-2011, 04:55 AM

Forgot to say wonderful work on saving the razor!!

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