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Welding a Mercury roof section into a ModelAFord
I cut back the useless fabric edge. Using a turned-180deg 63 Mercury Vomit roof section, I made up a new roof section, like hundreds of guys have done. Using the O/A torch I tack and skip around to tighten up the fit. I use the weld tension to draw up the fits, and gradually work into the corners, as usual like "everybody" does. Any given section of weld looks like this, about 1/8' to 3/16" wide, 6mm to 8mm. I hammer the weld, lifting up on the big track dolly as I smack down with a big flat-faced double-face body hammer, stretching out the weld, knocking down the bead, relieving tension, leveling distortion, and improving the strength of the weld-softened HAZ. (heat-affected zone) I check file it, slapper the low spots, check file, slapper some more, and one more pass with the 12T Vixen gets it to look like this. Standard stuff for 1930's metal men. okay, go get the ProPail. I've seen 60 lbs of lead in one panel. There was a name for cars that received that sort of work ....
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. Last edited by crystallographic; 09-15-2017 at 08:32 PM. |
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Kent, as always great tutorial! I will refer to this in the future! Thanks!
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Dave |
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Nice work! Thanks for taking the time to share the pics and your methods.
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Barry Duckworth |
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Kent
I always enjoy seeing your work. Nice tutorial. Keep them coming.
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Dave Bradbury |
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Way cool! I will pass this on to my many Model A friends for them to drool over. Thanks, Kent.
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Will |
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Kent, were you fusion welding it, or using filler rod, or a combination of both?
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Chris (trying to be the best me I can be) |
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Glad to help guys.
Chris, I fusion welded and added some filler too because I wanted a flat solid bead. Will, Show it around if it helps. Here are two more showing eyebrow method and rain rail end.
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
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Did you let the weld cool complete or did you hammer it hot or warm or cold?
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Tom Goodwin |
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Quote:
For thicker weld beads I prefer hot working them. For thin beads I work them cold.
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
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Thanks for the post Kent, much appreciated.
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Leigh, Stop moving so fast, you're creating a breeze. |
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