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Ukranian makes damascus steel knife from MC chain
 

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daddy-o
Joined: 12 Apr 2004
Posts: 2785
Location: Springfield

5/12/17 10:00 PM

Ukranian makes damascus steel knife from MC chain

Motorcycle chain, seventeen minutes, interesting flux, neat blade, novelty handle. Link to YouTube clip.

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Sparky
Joined: 08 Dec 2003
Posts: 15643
Location: Portland, OR

5/13/17 12:51 AM

I love the pattern the links left behind in the blade...

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Brian Nystrom
Joined: 26 Jan 2004
Posts: 3725
Location: Nashua, NH

5/13/17 4:14 PM

I wonder...

...how well it holds an edge?

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dddd
Joined: 11 Jan 2004
Posts: 3142
Location: NorCal

5/14/17 5:45 PM

I wonder what the magic dust is made of. Maybe it's an alloying element or soluble like carbon, nitride, etc.?

There's a Utube video showing a team of guys in china making a very large flange ring as might be used to join huge piping, same sort of iterative "progressive forging" process working all the dimensions into what started out as a square chunk of solid steel.

https://www.youtube.com/watch?v=68NXH4Nmbvk


Last edited by dddd on 5/14/17 5:59 PM; edited 2 times in total

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Sparky
Joined: 08 Dec 2003
Posts: 15643
Location: Portland, OR

5/14/17 5:47 PM

Magic powder is flux.

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dddd
Joined: 11 Jan 2004
Posts: 3142
Location: NorCal

5/14/17 5:49 PM

I guess the flux acts to make all of the surfaces fuse under heat and pressure.

Isn't that what the liquid was that they pulled the chain out of early on?

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Sparky
Joined: 08 Dec 2003
Posts: 15643
Location: Portland, OR

5/14/17 5:52 PM

Flux displaces the contaminants in air as well as controlling oxygen effect of forging as I understand it.

Watch this when you get a chance:

https://www.youtube.com/watch?v=lspB3QhrW_Q


It gets crazy interesting when you get to the parts of the guy actually reconstructing the process of the crucible steel processes. I think I processed too much there...

Not to mention the inlay of the letters, that was sick. I can tell you making guitars when a later process can trash the previous hour/hours or tens of hours of work to a start over. Eeesh....


Last edited by Sparky on 5/14/17 9:13 PM; edited 4 times in total

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dddd
Joined: 11 Jan 2004
Posts: 3142
Location: NorCal

5/14/17 5:54 PM

Hard to believe, but my brother worked in one of these places in Chicago back in the late 70's.

Would love to see a video showing good old butted steel tubing being processed into it's finished form.

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Sparky
Joined: 08 Dec 2003
Posts: 15643
Location: Portland, OR

5/14/17 6:14 PM

BTW, not sure that qualifies as damascus steel [the blade] and if it was folded and folded the links would not show quite like that in the blade. I imagine what still showed of the links would be quite a bit more distorted and not so much like chain links.

As if I know more than a little about it. What I do know I learned watching VIDs and documentaries with my kids whom would do that shit if they got the chance. Me, I'd do glass if I was willing to be around that much heat for a process. ;)

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Rickk
Joined: 01 Jun 2004
Posts: 485
Location: Montreal

6/7/17 12:17 AM

Wow. Thanks for sharing.

Some of those Damascus knives can sure take punishment, and still remain extremely sharp.
https://m.youtube.com/watch?v=CIdnMQNaqDs

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