[Spridgets] plug welding

corvallis at peoplepc.com corvallis at peoplepc.com
Mon Sep 15 13:56:48 MDT 2008


I thought brass was porous and would explode when exposed to welding.
...bill
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-----Original Message-----
From: spridgets-bounces+corvallis=peoplepc.com at autox.team.net
[mailto:spridgets-bounces+corvallis=peoplepc.com at autox.team.net] On Behalf
Of Glen Byrns
Sent: Monday, September 15, 2008 12:27 PM
To: Spridgets
Subject: [Spridgets] plug welding

After a few difficult sessions on the Morris truck attempting to "spot" weld
a
new driver's floor brace, I switched over to "plug" welding and suddenly I
was
flying along.  Better welds, no duds, and finished in no time.

For the beginner welders out there like me, to spot weld with a mig rig, you
drill a hole through one piece and then fill the hole with weld and hope it
penetrates to the undrilled piece beneath.  With plug welding, drill
(~3/16")
through BOTH pieces, back the hole with a small piece of brass or copper,
THEN
fill the hole with weld.  What a difference in success.  All the good
welders
on the list are saying "DUH!", but at least I'm learning. (And I got a
rock-solid floor brace!)

Glen Byrns
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