[TheForge] anvil repair

[dan tull]

I have used MG 750 rod w/ great success.
No pre/post heat.  Highest IMPACT rod designed for the rock crushing ind. 
Work harden.
Side benefit: good for dissimilar carbon content. i.e.. mild tang to tool 
steel hardy tools.
Expensive: $2.50/stick, but gets the job done fast.  Share a 10# box.
Leave the 7018 to the pipeline people.



----- Original Message ----- 
From: "James" <jallcorn at suddenlink.net>
To: <theforge at mailman.qth.net>
Sent: Wednesday, April 24, 2013 7:14 AM
Subject: [TheForge] anvil repair


>I know this has been discussed before but I need a refresher course...
>
> Bought an old (1856) William Foster anvil a few weeks ago.  The top is 
> pretty flat but the edges are beaten off almost all the way around and a 
> couple places that appear to have rips or tears in the top.
>
> According to the Postman book, Anvils in America it has a wrought base and 
> a steel top that was forge welded.
>
> If you were to attempt to rebuild the corners/edges of this anvil, what 
> procedure would you follow?   And what electrodes would you use?
>
> My inclination is to clean it as much as possible, pre-heat to about400 
> degrees F, weld the bottom of any holes that cannot be cleaned without 
> doing serious damage to the anvil with a 6010 electrode (because it 
> tolerates rust and junk and penetrates deeply). Then build up the surfaces 
> with something like a 7018, grind down, etc. (I've read the 7018 works 
> pretty well rebuilding an anvil.)
>
> I have an almost full 50# box of Lincoln Abrasoweld that I use 
> occasionally but don't know if it's for impact, abrasion or both. I 
> hesitate to use an extremely hard rod on an anvil. On the other hand, in 
> the 40 years that I've been welding I've used Stoody, Hi-Alloy, Hobart, 
> specialty rods etc. with generally good success. Those rods used to be 
> pretty common here (100 mi. NE of Dallas, TX) but now you just about can't 
> get any special stick rods (Ni for cast iron being and Hi-Alloy 500 the 
> only exceptions).
>
> I presume this is due to the extreme popularity of MIG machines and the 
> guys using portable rigs only use 6010/11 and 7018 for most work. All that 
> to say, specialty rods are hard to find here and the boys in the welding 
> shops aren't very helpful.
>
> Would you go to the trouble to find a different rod selection than what I 
> have mentioned and what procedure would you recommend if different from 
> the above? Since Postman says the body of this anvil is wrought - and I've 
> never stick welded wrought iron - will I have any difficulties if I get 
> down into the wrought part?
>
> And one more question, just how well would a MIG w/ standard off-the-shelf 
> MIG wire and 92/8 or 75/25 shielding gas work to repair an anvil?
>
> Thanks,
> James
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