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The Damascus Forum The art and study of Damascus steel making.

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  #1  
Old 10-11-2010, 12:04 AM
B.Finnigan's Avatar
B.Finnigan B.Finnigan is offline
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Different mokume concept.

This may have been done before but I don't ever recall seeing it.

I drilled out five 1/8" holes lengthwise in some 1/2" mild square bar.




Then ran 1/8" copper rod (cleaned) and peened it tight.



Heated up to bright orange and gave it a few thunks on all four sides. Then I twisted it one full turn.


Flattened it out to 1/4" and squared it up a bit.



Next time I will either peen some 1/8" mild into the holes or weld a blob on each end. Some of the copper extruded out.

After milling/grinding both sides I got an abstract zebra strip pattern with no voids and a good weld between the metals.



The other side.


After a quick dip in 1:1 FC





There are dozens of different designs and metal combos to try. On my next one I will do three holes on each side. Or four holes with a smaller rod dia. You could also use bigger square (or round) bar. The center hole is a waste unless you use a larger dia. so you don't have dig too much to expose it.

Another concept I will try is drilling out holes across the bar and hammering down flat for a raindrop type pattern.

On lower melting point metals you can plug the ends with a weld or cold hammer the ends closed.

Maybe fill the holes up with mixed powderd metals.

Opposing twists? Running a much smaller diameter steel rod down through a powdered metal.

Lots of possibilities to play with. This process doesn't give the complex patterns of regular mokume but there is far less chance of screwing it up.

All you need is a drill press and forge.
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Old 12-18-2011, 12:50 PM
dthor dthor is offline
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Nice work!

While I am new to the forge working, having only recently built and fired my homemade charcoal fired pig, I have dabbled in the mokume gane with silver and copper in my jewelry making hobby, just wanted to give a big thumbs up to your technique you show. Definitely going to give that a shot, if I can stand the cold long enough to fire up the forge outside,
26 degrees out now where I am. Mokume had always been tricky for me, done what should have failed due to rushing and doing process "wrong" yield the best stuff to date, while carefully cleaning, fluxing, clamping has led to a loss of precious metal in a delaminated mess. I'll be sure to post a pic if I try your technique, if you don't mind me borrowing it.
Dave
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  #3  
Old 12-19-2011, 06:17 AM
Dave Armour Dave Armour is offline
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This is a really cool idea- definitely in my "I've got to try this" pile. I love the look and you're right- there's a ton of different possibilities to play with.

One question: Do you think you could do something like this with a carbon steel such as 1084 or 1095? That would make a wild looking blade.

Thanks for posting this.

Dave Armour
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Old 12-19-2011, 11:48 AM
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B.Finnigan B.Finnigan is offline
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It would certainly weaken a knife having copper veins running through it. Although for a display knife it would look cool.
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Old 01-02-2012, 12:00 AM
Pierre Pierre is offline
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Looks like awesome bolster and/or backspine material...

Starting to get a 'need a forge' itch going here...

I'm outta here !

Thanks for sharing

Patrick
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