[TheForge] bandsaw steel problem

[ries]

Anneal by heating to red, then allowing to cool as slowly as possible-  
I am not aware of my floor having insulating properties, although  
yours may...
People use stuff like vermiculite for this, or burying it in the ashes  
of a cooling woodstove, or, if you wanna get all high tech, my friend  
phil uses a computer controlled propane forge that drops 100 degrees  
every hour.
Glassmakers use annealing ovens like this.
Anyway, the point is that rapid cooling hardens it.
slooow cooling anneals it.

Some steels, of course, are just plain hard, and annealing doesnt help  
much.

carbide bit count as "gee whiz"?

really slow, with lots of coolant?

If nothing else works, bring it over, we will run an end mill on its  
ass on the milling machine, turned down to about 100 rpm, that oughta  
work.

ries


On Apr 6, 2010, at 9:45 AM, Andy Gladish wrote:

I'm looking for info on a steel problem:
Got my hands on a large steel cutting bandsaw blade from my local steel
supplier, one of the 1 1/2" wide ones.
I tried to "anneal" it by heating to nonmagnetic and throwing it on the
floor, but when I got to the part where you drill holes, it was no go  
even
with my gee whiz bits.
Any ideas on what steel it might be and/or how to soften it or get some
holes through the tang?
Thanks!
Andy G.

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Ries Niemi
Industrial Artist
http://www.riesniemi.com/