[TheForge] followup on holes in saw blade

[Marc3rd]

Ok I know I am reaching. but
What if we took the annealing with the rod a little farther. I have a 
shoulder bolt and the threaded part has broken off inside the roller it 
screws into. what if we kept this process going for a longer time? Would it 
get hot enough to actually weld to the broken off threaded piece.?
Or would I be better off trying to anneal it and drill it and use a screw 
extractor?
Thanks in advance.
Marc
Marc V. Davis III
Marc of the Hammer
marc at marc3rd.com
www.marc3rd.com



----- Original Message ----- 
From: "Peter Fels & Phoebe Palmer" <artgawk at thegrid.net>
To: <mspencer at tallships.ca>; "Blacksmithing List Sponsored by ABANA" 
<theforge at mailman.qth.net>
Sent: Saturday, May 08, 2010 1:28 AM
Subject: Re: [TheForge] followup on holes in saw blade


> Grin..a tool is a tool.
>
> Mike Spencer wrote:
>> Frosty wrote:
>>
>>> I think I mentioned this early in the thread but I've had very good
>>> luck annealing hard high C steel for drilling by chucking up a piece
>>> of round steel rod about the same dia as I want to drill, then with
>>> it turning I press it into the part where the hole's to go. Once the
>>> part turns red I retract the rod, let it cool and drill.
>>
>> Very clever.  I must have missed it before.  I might even experiment
>> with just pushing the rod until some light blue shows up around the
>> hot spot -- all depending on just what the workpiece is.  Have to
>> remember that.
>>
>> I think my most bizarre hole-making was on my very first forge. Utter
>> novice that I was, I had struggled to form a sheet metal cone-shaped
>> hood and bolt it to the little forge only to discover that I needed
>> 1/4" aligned holes through two layers of sheet metal to fasten the top
>> of the cone together.  Too springy to drill. Dreaded starting over by
>> taking the the horrible, floppy, springy thing apart. So I clamped the
>> metal and a Balkan Sobranie can [1] full of sand together and shot a
>> hole in it with a .22 short. Worked great.
>>
>>
>> Tnx Frosty,
>> - Mike
>>
>> [1] Balkan Sobranie is no longer available so you can't make holes
>>     this way any more. 8-)
>>
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