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I Forge Iron

Ladder patterned bowie


rhitee93

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Here are a few pics of a knife I just finished up for an old friend.  It is a 44-layer ladder pattern made from 1095 and 15N20.  The guard and frame are nickle silver and the scales are Sambar stag.

It is loosely patterned after the knives made by Wostenholm & Sons in the 1850s.

This is my first ladder attempt, and as all such things it was quite a learning experience.

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36 minutes ago, Steve Sells said:

tight and even patterning  that's the key, you nailed it

Yeah, I took a page from JPH's book on the grooving, and it just worked.  I did the grove and smash version since I had access to a mill, but no press.  However, the deep slots I cut left me with some cold-shuts at the interfaces to the grooves.  Next time I'll try the "Squish and grind" approach.

Here is the slotted billet:

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And after forging flat:

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There were still a few small cold-shuts/inclusions that I couldn't get completely ground out.  Next time, if I mill the slots, I won't go so far past the radius of the ball nose cutter in depth.  Those deep vertical slots got me in trouble.

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1 hour ago, Steve Sells said:

no need to go any deeper than after the radius is cut,  meaning the straight sides form going this deep were just wasting metal.. but  a great first.

Thanks, I'll keep that in mind next time.  It's an addictive pattern, so there will be a next time :)

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Hope no one minds..

Those are not cold shuts..they are cold laps caused by the peining of the "tops" when  you flattened..you should not of cut down that deep... HOWEVER there is a way to cut down that deep and that is to chamfer the  "tops" a bit to compensate for the peining effect. That is what I do when I cut down past the  radius.. This way you don't get the lap-overs that can be a PITA,,,

Also..flatten at a welding heat..makes things a bunch easier if you ask me...

Hope this helps..

JPH

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Thanks again all.

JPH, I understand exactly what you are saying.  I like candy, so lets say it could have looked like two kit-kat bars back to back :)  It wasn't until I got into this project that I appreciated how many variables are at play with a ladder pattern.  I based my groove depth and spacing on info in one of your books, but scaled it a bit to fit a ball-end cutter I already had.  Afterwards I realized that the desired spine width, the parent billet thickness, and the depth of cut are all locked into a relationship with each other.

Dave, Sadly, no, I won't be there.  I still have two seniors in high school, and lots of kid events to go to on the weekends.  They'll be off at school next year, and I am thinking I may have more time for dad events :)

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