mel jacobson on wed 26 may 10
there is the old blacksmith technique.
heat until you see `wheat` patterns.
that would be gold to soft violet waves.
take a simple bernz o matic torch and heat the
metal holding it with a vice grip. (need i say gloves?)
watch the color..when you see wheat in a field
waving in the sun.
plunge the metal into some oil.
any oil, like no 30...
water works too, but never as well as oil.
mel
even a ten year old kid will tell you when he sees wheat.
`now grandpa, i can see it`.
from: minnetonka, mn
website: http://www.visi.com/~melpots/
clayart link: http://www.visi.com/~melpots/clayart.html
new book: http://www.21stcenturykilns.com
alternate: melpots7575@gmail.com
jonathan byler on wed 26 may 10
mel what you describe doesn't harden steel, only temper it. you need
to bring it up red hot (or possibly more depending on the alloy)
followed by a quench in brine/water/oil/air, depending on the alloy to
harden most of the time. there are some materials that you can harden
by heating for a period of time at low temperature, but regular old
tool steel like O-1 is not one of them.
following hardening you temper to make the item tough and not so
brittle. different steels and different tool designs all need
tempering in different amounts, especially depending on their intended
use. this is done to balance toughness with overall hardness to make
blades/tools that are best suited to their intended purpose.
On May 26, 2010, at 6:25 PM, mel jacobson wrote:
> there is the old blacksmith technique.
> heat until you see `wheat` patterns.
> that would be gold to soft violet waves.
>
> take a simple bernz o matic torch and heat the
> metal holding it with a vice grip. (need i say gloves?)
>
> watch the color..when you see wheat in a field
> waving in the sun.
> plunge the metal into some oil.
> any oil, like no 30...
> water works too, but never as well as oil.
> mel
> even a ten year old kid will tell you when he sees wheat.
> `now grandpa, i can see it`.
> from: minnetonka, mn
> website: http://www.visi.com/~melpots/
> clayart link: http://www.visi.com/~melpots/clayart.html
> new book: http://www.21stcenturykilns.com
> alternate: melpots7575@gmail.com
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