[TheForge] Welding 5160

Sun Aug 24 00:01:01 2003

Ralph:  There are a number of welding rods that would work well for that
application.  I have made similar repairs on shock-loaded members and
usually what I did was to verify the needed  LOA of the piece and bevel each
side of the joint steeply, with ridge (or gap) left in the middle that
guaranteed the LOA.   Then preheat the surfaces to be joined.

If you need to clamp the pieces firmly, clamp them in the "V" of a piece of
angle-iron at the needed LOA.  This acts as a splint that holds the pieces
at a predetermined position.

  Weld by first tacking the piece and then filling the bevels so the beads
are just above the original surfaces.  Make sure that the filling beads are
run in a connecting line to the joined ends of the original piece.  I would
suspect the tension arms are of carbon steel, probably in the 40 pt. range,
like axles.

 I don't know if these arms are heat-treated, so the welding will undo the
heat treat near the joint.  Before welding, check with the edge of a file.
If a good file barely bites and makes a high-pitched scraping sound, the
metal is likely heat treated.  If the file bites easily with a lower pitched
sound, the piece is likely not heat treated.   just my cents

Grant
----- Original Message ----- 
From: "Ralph Sproul" <[email protected]>
To: <[email protected]>
Sent: Saturday, August 23, 2003 6:33 PM
Subject: [TheForge] Welding 5160

>     Here's a question I should have asked earlier..........  Any comments
on
> welding 5160?
>
>         Today I welded up a broken tension arm from a #4 Beaudry Power
> hammer.  We'll see if it holds together when the hammer goes back into use
> on Monday(then I'll really know if my plan was a good one or not).   :-)
>
>         I used a particular method I thought might work, and I wonder what
> others would say on how to do it..........
>
> Ralph
>
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