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Posted by Chilla on December 2, 2007, 10:18 pm
Please log in for more thread options alvinj@Example.com wrote:
>
>>Project 1:
>>---------
>>As I was finding it extremely difficult to get sheet spring steel,
>>or spring steel strip, I figured out another way to skin my
>>personal cat.
>>I bought 78 black spring washers, a really thick square section
>>wire.
>
>
> Did you spark test them yet?
Yep. All good.
>>Put it in the forge straighten and flatten, next to laminate this
>>either with mild steel or L6.
>>I should be able to get 13 blanks out of this.
>
>
> Cool but are they medium carbon steel tho?
> (my guess)
> And do they have any Mo in them?
> (pronounced, separated red arrow head at the ends of the streams)
Absolutely, look like little tridents (or more points), and many of them.
Looks medium to high carbon to me ;-) Which is good, I'm going to mix
them with L6, not sure if I'll get as good a contrast, but we'll see.
If it's not pretty then it's mild steel for the next batch.
There is an addendum here, I should be able to get 26 billets... which
is better for me. I can add as many as I want or even Gordion Knot them :-)
> You know... them dangged;) knife forgers tend to buy their steel in
> rounds. Cheaper and offered in a wider range of alloys than sheet.
>
> Howard Clark was buying 3/4" rounds of L6 in 20 foot lengths last I
> heard.
I was thinking of getting a heavy duty square section wire, anything is
better than reducing a 50 mm by 6 mm by 1000 mm piece of flat bar :-(
>>Project 2:
>>---------
>>When I bought my spring washers I was glancing around and noticed
>>stainless steel bolts.
>>"Hmmm..." thought I. "I wonder if I could make a carving set from
>>two stainless steel bolts".
>
>
> Did you spark test those for carbon content? ;)
> Betcha they are low-ass carbon and will only work harden. :/
Looks low carbon (if any at all), it does spark a lot, although the
forks are far and few between :-(
>>Well the problem for me is not shaping the bolts into something
>>that looks like a carving set it's heat treating stainless steel.
>>Anyone on the list heat treated stainless steel?
>>Regards Charles
>
>
> I don't, but a guy on r.k used to use a torch as if 440C were carbon
> steel and it'd harden up. :) Of course that method won't get you all
> that can be got from any particular piece of stainless steel or
> medium or higher alloy tool steel either. That medium and high
> alloy stuff needs -soaking time- in a specific temperature range to
> get what the alloy has to offer, over what a low alloy steel has to
> offer.
Well I was thinking of a subzero quench, but if this doesn't work I will
try to add more carbon by pieing the blade for a week or two. Sort of
like case hardening but a bit more extreme, it allows pure iron to be
converted to high carbon steel, so it's worth a shot with the stainless.
Or I could try coating the cutting edge with a eutectic powdered metal :-)
Regards Charles
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