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JJ Simon

KITH WIP 2016 picture heavy

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OK JJ,

I'm making a grand assumption here, but what's the bloom process?

lay down a bed of charcoal,

pile the nails on it (randomly or organized stack? I assume randomly)

Light it up and cover with more charcoal.

turn the blower on and monitor, adding more charcoal as needed to get it to semi-consolidate

Pull out the sponge and start forging

Repeat as needed.

 

Is that the crux of the biscuit?

You build the fire and the coals all the way to the top of the hearth.

So its full.

Then you feed the material, whether nails, rebar, wrought of one sort or another in vertically.

I ran 3-4 nails at a time.

The material needs to be fed 2" from the tuyerre.

So there is a buffer of coal and you are not blasting air directly on the material which would cause decarb.

The material will melt and you can pull a piece out when its not completely melted and take a look just to see how it is doing.

You can feed very little and make little wafers to stack or you can feed a lot like I did and make a sponge that will need to be reduced.

So you feed,, then burn down the charcoal and fill it some more and feed material back and forth

Very much the same process as smelting but not using a tall stack and not using ore.

So the reduction distance and time is reduced.

 

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Well, we get to go back to the drawing board so to speak.
I was not satisfied with the first heat treat which I did as an interrupted quench from water to oil.
So I went back and quenched it in brine and interrupted it going back into the brine.
And as is very common with this material I got a delam that I am not willing to mess with>
So I will be starting over.
Probably with something different as far as material.

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Bummer!

Enjoying the journey though, I hope.

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The only truly bad experience, is the one from which you learn nothing.

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So back to the drawing board after the delam from the previous knife.
So I took a farriers rasp. Available at my local hardware store.
And I did a jelly roll weld.

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After doing the jelly roll.
I drew the bar out, folded and welded it.
Drew it out again, cut and folded it and inserted a file.
Welded that in San Mai style.
Forged it out.
Had a little bit of thinning at the end of the weld so I cut it off at a workable length.
I have about 9X1/2X1.
Will post forging photos later.

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Well that one looks pretty freakin' solid.

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So this is progress.
Knife is heat treated and ground.
I decided to go with a shape inspired by Raymond Richards knives.
No ricasso.
If you don't know his work, look it up.
Just beautiful lines.
The hamon should be pretty good.
The blade was longer by I had a delam that forced me to shorten it from the ricasso end.
It is bigger than it looks, my hands are just big.
Polishing and guard making starts tomorrow.

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That thing looks evil sharp at the point...

Cant wait to see this thing finished, I am daily scanning the KITH forum so I can get other ideas to try out on making my KITH knife.

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What has happened to this.

It's a very small blade.

So today I started again and did a straight forging from a rasp.

I intend to finish the rasp knife and will include the ferry role blade with whoever gets my completed knife.

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Thank you for the WIP. Very interesting and instructive.

 

A couple of questions, if you don't mind:

 

I am still struggling with some technical terms so, what is the tuyere? Is is the orifice where the air comes from in th hearth?

 

What are the proportion for a well functioning hearth?

 

And, this might sound stupid to y'all but remember I am Italian: what does KITH mean? Tried to find it on the interweb but I found not knife related definitions...

 

Thank you for sharing!

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You are correct about the definition of tuyere, it is where the air is introduced to the hearth. There is a lot of information on hearth making in the Bloomers and Buttons subforum, and don't forget to look at the pinned topics subforum as well.

 

And KITH is Knife In The Hat, a type of blind exchange of knives between those who want to participate. Everyone makes a knife to a pre-agreed theme, and on the deadline date someone draws names from a hat, and that determines who gets which knife.

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That is so cool Alan. Maybe next time I can participate!

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