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Sparky
Joined: 08 Dec 2003
Posts: 19079
Location: PDX5/13/17 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: 5101
Location: Nashua, NH5/13/17 4:14 PM |
I wonder...
...how well it holds an edge?
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dddd
Joined: 11 Jan 2004
Posts: 3345
Location: NorCal5/14/17 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: 19079
Location: PDX5/14/17 5:47 PM |
Magic powder is flux.
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dddd
Joined: 11 Jan 2004
Posts: 3345
Location: NorCal5/14/17 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: 19079
Location: PDX5/14/17 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: 3345
Location: NorCal5/14/17 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: 19079
Location: PDX5/14/17 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: 528
Location: Montreal6/7/17 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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