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 Post subject: Re: Chisel build thread
PostPosted: Wed Aug 01, 2012 7:53 pm 
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I could watch you do this all day. Thanks for preserving an old world art and letting us watch you do it!

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 Post subject: Re: Chisel build thread
PostPosted: Thu Aug 02, 2012 6:31 am 
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Great stuff Phillip! Reminds me of a wonderfull PBS (I think) show chronicling the old world making of a samurai sword. Love these kinds of demonstrations.

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 Post subject: Re: Chisel build thread
PostPosted: Thu Aug 02, 2012 9:04 am 
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Thanks guys, I'm glad you're enjoying this.

Dennis, the purpose of the twisting is to manipulate the layers of steel to produce the desired pattern, it doesn't affect the performance. This is a variation of the basic twist pattern, where you twist a single bar. Another twist pattern I like is turkish twist. Here's an example of that pattern:

Image


And here's a knife with the same pattern as the chisel will be:

Image

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 Post subject: Re: Chisel build thread
PostPosted: Thu Aug 02, 2012 9:10 am 
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Here's what I got done this morning. First, I ground the bar clean. When twisting a square bar, you make deep grooves, almost like screw threads. The bottoms of those grooves can get forged into the surface, and if you don't grind them out before final forging, you might be in trouble.

Image


Then I started drawing out the tang:

Image


Then the blade part is drawn out width-wise. I was shooting for a finished width of 3/4", so I want it a bit wider to allow for grinding:

Image

Image


Now the whole thing is thermal cycled a few times. This relieves stress and refines the grain.

Image

Once that's cooled down, I'll start grinding.

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Phillip Patton

http://www.pattonblades.com

The bitterness of poor quality lingers long after the sweetness of low price has faded.

https://hoosierbladesmith.wordpress.com


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 Post subject: Re: Chisel build thread
PostPosted: Thu Aug 02, 2012 10:19 am 
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The knife with the twist pattern the same as the chisel will be is un-freakin-believable! I absolutely love it! I see one of those in my future. Gorgeous Phillip. Just gorgeous.

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 Post subject: Re: Chisel build thread
PostPosted: Thu Aug 02, 2012 10:45 am 
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Phillip, I see you are making a tanged chisel this time. I've been wondering up to this point whether it would have a tang or a socket. If you have also made socket chisels, would you post a few pictures? I'd be very curious to know whether you would forge or lathe a socket. Many thanks for this excellent demonstration.
Patrick


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 Post subject: Re: Chisel build thread
PostPosted: Thu Aug 02, 2012 11:31 am 
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Wow, this is very cool. Makes me wish I had a chance to win! laughing6-hehe

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 Post subject: Re: Chisel build thread
PostPosted: Fri Aug 03, 2012 7:14 am 
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just wanted to chip in and say that I'm really enjoying this thread too!
What a prize!

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 Post subject: Re: Chisel build thread
PostPosted: Mon Aug 06, 2012 5:39 am 
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Every time I see stuff like this, I get the urge to build a forge.

Then I price everything out and realize I don't even have enough hours in the day to do half the things I've already got on my wish list, and figure I should just enjoy watching other talented individuals work.


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 Post subject: Re: Chisel build thread
PostPosted: Wed Aug 08, 2012 10:14 pm 
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If I don't win one how much to just buy one?

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 Post subject: Re: Chisel build thread
PostPosted: Wed Aug 08, 2012 11:56 pm 
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theguitarwhisperer wrote:
If I don't win one how much to just buy one?



+1, but when I don't win, how much to buy one?


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 Post subject: Re: Chisel build thread
PostPosted: Sun Aug 12, 2012 7:34 pm 
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First name: Phillip
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Focus: Build
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cphanna wrote:
Phillip, I see you are making a tanged chisel this time. I've been wondering up to this point whether it would have a tang or a socket. If you have also made socket chisels, would you post a few pictures? I'd be very curious to know whether you would forge or lathe a socket. Many thanks for this excellent demonstration.
Patrick



I haven't made any socket chisels yet. If I did, I'd probably try to forge it close to shape, and use a guide for grinding and filing the rest of the way.

theguitarwhisperer wrote:
If I don't win one how much to just buy one?


About $175. :)

Thanks everybody else for your comments, and I'm glad to facilitate a walk down memory lane, Filippo. :)

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Phillip Patton

http://www.pattonblades.com

The bitterness of poor quality lingers long after the sweetness of low price has faded.

https://hoosierbladesmith.wordpress.com


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 Post subject: Re: Chisel build thread
PostPosted: Sun Aug 12, 2012 7:40 pm 
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Location: Northeast Indiana
First name: Phillip
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Ok, time to get working on the handle (actually, I made the handle a couple weeks ago, it's just easier for me talk in the present tense ;) ).

I'm making this handle out of scraps of knife handle wood I had laying around. Arizona desert ironwood and african blackwood.

First step is to clamp the pieces in the four jaw chuck on my lathe:

Image

and drill all the way through one piece, and most of the way through the other:

Image


I'm using a piece of bronze between the two pieces of wood to add contrast and to keep them lined up right:

Image

Image

Image

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Phillip Patton

http://www.pattonblades.com

The bitterness of poor quality lingers long after the sweetness of low price has faded.

https://hoosierbladesmith.wordpress.com


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 Post subject: Re: Chisel build thread
PostPosted: Sun Aug 12, 2012 7:43 pm 
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Focus: Build
Status: Amateur
Now the pieces are all glued together (using CA):

Image

then ground clean:

Image


Then I hog off the material where the ferrule will be using the bandsaw:

Image


Then chuck it up in the lathe again and turn it round:

Image

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Phillip Patton

http://www.pattonblades.com

The bitterness of poor quality lingers long after the sweetness of low price has faded.

https://hoosierbladesmith.wordpress.com


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 Post subject: Re: Chisel build thread
PostPosted: Sun Aug 12, 2012 7:46 pm 
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Status: Amateur
Now for the ferrule. I'm making it out of bronze also, and the only turning stock I had was 1.5" diameter. But, it was partly turned down to size from a previous project. [:Y:]

Image

Image


Now the ferrule is cut off, and glued to the handle blank:

Image

Image


And the handle starts to get shaped:

Image

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Phillip Patton

http://www.pattonblades.com

The bitterness of poor quality lingers long after the sweetness of low price has faded.

https://hoosierbladesmith.wordpress.com


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 Post subject: Re: Chisel build thread
PostPosted: Sun Aug 12, 2012 7:52 pm 
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Location: Northeast Indiana
First name: Phillip
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Zip/Postal Code: 46798
Country: USA
Focus: Build
Status: Amateur
Initially, I shaped it with a thumb stop:

Image

Image

Image

but didn't like the way it felt, so I ground it off. The spacer in the handle is a different kind of bronze than the ferrule, and is very hard to machine, so all the shaping after the above pics, were done free hand on the belt grinder.

After rough shaping, it was sanded with slack belts through 600 grit, then buffed:

Image

Image

Image


Tomorrow, I'm hoping I'll be able to heat treat the blade.

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Phillip Patton

http://www.pattonblades.com

The bitterness of poor quality lingers long after the sweetness of low price has faded.

https://hoosierbladesmith.wordpress.com


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 Post subject: Re: Chisel build thread
PostPosted: Sun Aug 12, 2012 8:00 pm 
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It's so amazing to me to watch people with real talent. Were I to win the chisel, it would become one of my prized possessions. What a work of art!!!


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 Post subject: Re: Chisel build thread
PostPosted: Sun Aug 12, 2012 8:52 pm 
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that is so cool!!!!! looks great!! [:Y:]

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 Post subject: Chisel build thread
PostPosted: Sun Aug 12, 2012 9:58 pm 
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So nice!

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 Post subject: Chisel build thread
PostPosted: Sun Aug 12, 2012 10:36 pm 
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I can't believe I just now seen this thread. Thanks so much for posting this step by step tutorial. I've enjoyed it very much!

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 Post subject: Re: Chisel build thread
PostPosted: Mon Aug 13, 2012 9:41 am 
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There needs to be a knife-making subform. I could look at pictures like this all day long.

...or I could just go find a knife makers forum. Bah, like I need another forum to go to.

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 Post subject: Re: Chisel build thread
PostPosted: Mon Aug 13, 2012 12:24 pm 
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That is beautifull work Phillip . This is by far the best thread of the challenge LOL

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 Post subject: Re: Chisel build thread
PostPosted: Sun Aug 19, 2012 10:37 am 
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Well, I didn't get around to heat treating until Friday, because I wanted to get a bunch of knife blades ready to do at the same time, to conserve energy. So here's the chisel:

Image

and here are the knives I did:

Image


The gray coating you see is anti scale compound. It protects the surface from the effects of oxygen at high temps.


Here it is after quenching. The steels I used for the chisel are shallow hardening, so require a fast quenchant. Traditionally, this was done in the urine of a red headed virgin, but it's hard to find virgins nowadays, so I use a quench oil designed for fast steels. It's almost as fast as water, but without the risk of cracking, which would be very disgusting this far along...

Image


After tempering, which is done twice at 350 degrees for a couple hours, it's back to the grinder to clean up the grinds, trying to make everything symmetrical and straight:

Image


I finished up on the grinder with 240 grit, then went to 400 grit by hand:

Image

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Phillip Patton

http://www.pattonblades.com

The bitterness of poor quality lingers long after the sweetness of low price has faded.

https://hoosierbladesmith.wordpress.com


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 Post subject: Re: Chisel build thread
PostPosted: Sun Aug 19, 2012 10:46 am 
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Status: Amateur
Then into the etching tank. I etch in ferric chloride. I like a fairly weak solution, because I think it looks nicer to do many slow etches, with light sanding in between, than to do a couple deep etches.

Image

I etch for 10 minutes, and here's how it looks:

Image


Then sand with 600 grit, etch for 10 more minutes, then buff with a fairly hard wheel and green chrome compound:

Image

Image


Then etch for another 10 minutes, then it goes into the neutralizing bath, which is just water and baking soda.

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Phillip Patton

http://www.pattonblades.com

The bitterness of poor quality lingers long after the sweetness of low price has faded.

https://hoosierbladesmith.wordpress.com


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 Post subject: Re: Chisel build thread
PostPosted: Sun Aug 19, 2012 10:48 am 
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I think you might make more money by building custom guitar chisels for luthiers ! Amazing work Phillip . [:Y:]

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The Shallower the depth of the stream , The Louder the Babble !
The Taking Of Offense Is the Life Course Of The Stupid One !
Wanna Leave a Better Planet for our Kids? How about Working on BETTER KIDS for our Planet !
Forgiveness is the ability to accept an apology that you will probably NEVER GET
The truth will set you free , But FIRST, it will probably Piss you Off !
Creativity is allowing yourself to make Mistakes, Art is knowing which ones to Keep !
The Saddest thing anyone can do , is push a Loyal Person to the point that they Dont Care Anymore
Never met a STRONG person who had an EASY past !
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