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4x4M38
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Joined: May 30, 2014
Posts: 3447
Location: Texas Hill Country
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 Posted: Thu Aug 20, 2015 2:05 pm Post subject: Stitch welding |
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Nothing is more deflating than watching a bunch
of videos and reading plenty of articles
describing patching sheetmetal then actually
firing up the MIG on paper-thin cowl and spending
the morning learning how not to weld.
All of the test stuff I've been using is fairly
new, and full thickness, so almost no relation
to what I'm working with. Which leads to my
question.
In stich welding do you place the patch and
just spot weld for a second or so then get off
the trigger? Move to a place maybe 90 degrees
or as far as possible from the first, align the patch
and do it again ? Repeat, except in between the two,
eventually filling in with spot welds?
In other words no long beads with the thin
sheet we are working with.
Thanks for the help.
Brian
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Brian
1950 M38
MC11481
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album372&op=modload&name=gallery&file=index&include=view_album.php |
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STXM38A1
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Joined: Jul 25, 2009
Posts: 139
Location: Fair Oaks Ranch, Texas
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4x4M38
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Location: Texas Hill Country
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southpw
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Joined: Jun 15, 2014
Posts: 268
Location: Cambridge, Ontario, Canada
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| Posted: Thu Aug 20, 2015 3:25 pm Post subject: |
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Yes you are correct. Don't hold the trigger. Set heat to lowest possible and move up only if you are finding it's just not enough. Once the panel is tacked in a few places and you feel it is in a good spot, you can run multiple spots side by side and then move to another area.Maybe 4 or 5 spots at a time. If you find you start blowing through the material, try only 2 or 3 spot welds and move somewhere else allowing that area to cool.
Good luck.
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1952 M38 project
Brad |
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Bretto
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Joined: Nov 24, 2010
Posts: 1390
Location: Orem, UT
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| Posted: Thu Aug 20, 2015 4:26 pm Post subject: |
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Having an air hose next to you is handy also to help cool things down quicker between your spot welds.
_________________
Brett
'51 M38
PHOTO DIARY OF MY BUILD |
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4x4M38
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Location: Texas Hill Country
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