[TheForge] TheForge Digest, Vol 117, Issue 6

[Peter Fels & Phoebe Palmer]

Assuming you are cutting the Al to scrap it out,
the buyer may be unhappy with the contamination an oxy-lance would deposit.
I'm guessing.
With the iron, oxy and aluminum, we are coming close to thermite fun mubbie?

Query: I pulled an old ( don't know how old...WW2 old?) 8"X1" grinding wheel out , dug up
some centering hardware and hung it on my bench grinder.
It cuts gratifyingly quickly on hard steel!!     It also wears really fast!
Looks to be around 60 grit with darkish grains in a grey matrix.
I'm wondering if the binder has gotten soft with age and it's dangerous?
Ran it unloaded for 5 minutes while i did something else, then stood well aside using it.
It won't last long and it's messy, but it cuts delightfully quickly.
Are such wheels available commercially?
On the 4 1/2" peanut grinders, the really cheap, soft grinding discs,
cut more aggressively than "better" wheels and save a lot of time
doing an unpleasant job...for my taste.

On Oct 11, 2013, at 10:24 PM, Jerry Frost wrote:

Yep, that's the thing. The oxy blowing through makes the steel tube burns
making for a really HOT cutter. Saw a demo where the guy burned holes
through concrete with little fuss. Concrete burns with a vivid orange smoke,
just let it get on you, it's hot quick lime but pretty.

Jer

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Vincent Nakovics
Sent: Sunday, October 6, 2013 8:31 AM
To: theforge at mailman.qth.net
Subject: Re: [TheForge] TheForge Digest, Vol 117, Issue 6


Jer, I don't anything about Oxy lances, that's the thing that looks like a
giant sparkler, burns underwater, etc. right? 

See ya at the forge!

Vince Nakovics



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