[TheForge] repairing tapped sleeve

[Larry and Pat Brown]

Dan
I take it that this is worn through from the outside in? You can take 
copper or brass and thread it, screw it into the hole and weld the outside 
to build it up. Weld a little, stop see if the copper is fused in, then 
continue. I would start at the end and work out, re-threading the copper if 
you have to. Afterwards re-tap the hole. Use a low penetration rod such as 
6013, do not use 6010 or 6011 or you will have to drill the copper bar back 
out. A spray spatter guard on the copper might help also
Larry Brown



At 10:32 AM 2/11/2002 -0500, you wrote:
>I have some machine parts that need to be repaired. They consist of a steel
>sleeve that has the inside threaded to 5/8 NC and the wall of the sleeve is
>worn completely away in some areas. I can cut out the sleeve and replace it
>but that will be real pain in the neck. I tried to find some carbon rod that
>I could thread and screw into the sleeve and then build up the wall with
>weld. I haven't found any carbon that will work. I wonder if a copper rod
>will work?  I looked at copper rod in the McMaster Carr catalog it shows a
>melting point of 1981 deg F. I'm afraid that's too low. Any ideas?
>
>Thanks in advance, Dan Cruzan
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