From: Snag_one@msn.com
On 5/1/2025 8:56 PM, Mike Spencer wrote:
> "Jim Wilkins" writes:
>
>> "Jim Wilkins" wrote in message news:vu44rs$vrlu$1@dont-email.me...
>>
>> I will soon try making a tool from a scrap of broken rock drill pipe, and
>> see how easy to saw and turn it is.
>> --------------------------------
>>
>> It wears an HSS bit dull in a few minutes unless the lathe is in back gear.
>> Annealing or tempering in the wood stove to at least 600F when I removed it
>> from the tin can after the fire died down seems to have helped tool bit
>> life.
>
> I once made a (finger) ring from pattern-welded mild steel and a piece
> of VW Beetle front suspension torsion spring. File glided off of it
> as if it were glass. Put it in the coal of the wood range and left it
> overnight as the fire died. Next day, it filed nicely.
>
> Those yard-long VW spring leaves can be clamped in the vise and bent
> 180 and will violently spring back. Heated to red in the forge and
> cooled in air on the bench, can easily be snapped of by hand with a
> very few degrees of bend. Glassy-hard. Air-hardening alloy.
>
> So, good lo-tech annealing trick. Dunno about rock drill pipe, though.
>
A soaking heat for several hours followed by a sloooowwww cooling has
worked for me in the past . Small parts can be buried in sand or ashes,
bigger stuff stays in the stove .
I did the overnight in the wood stove with a piece of Old Chevy
Spring to make a froe . One of these days I'll carry the metal parts and
a chunk of hickory (harvested right here in The Holler by a neighbor)
down to another neighbor - the one that has a wood lathe . I could do it
on my machine lathe but the mess ...
--
Snag
We live in a time where intelligent people
are being silenced so that
stupid people won't be offended.
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
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