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#1 |
Registered User
Join Date: Jul 2014
Location: Washington
Posts: 532
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Body Panel Welding?
Whats The Ideal Gap n Whats The Back Of The Weld Supposed To Look Like ?
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#2 |
Senior Member
![]() Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,956
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Re: Body Panel Welding?
I’ve had good luck with a gap equal or (ideally) slightly less than the thickness of a cut off wheel.
The back side should look similar to the weld side. Only do tacks, and only 2-3 at a time. Yes it takes forever. I’m assuming you are using a MIG?
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#3 | |
Registered User
Join Date: Jul 2014
Location: Washington
Posts: 532
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Quote:
Yes Using a Mig.. Wasn’t Sure If The Back Side Was Supposed To Look The Same.. Only Get That When I Turn Up The Heat. Using a Miller 140 Auto-Set |
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#4 |
Senior Member
![]() Join Date: Aug 2004
Location: Centennial, CO
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Re: Body Panel Welding?
It won’t look exactly the same, but the penetration should be all the way thru.
If the heat is right, you won’t get away with more than 2-3 tacks before it starts wanting to blow a hole thru. Those auto set machines are nice. The only thing I’ve ever had mess one up was welding right by a big magnet.
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ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ |
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#5 |
Registered User
Join Date: May 2011
Location: Reno Nevada
Posts: 380
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Re: Body Panel Welding?
Good rule of thumb is gap the same as the wire size.
Vic |
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#6 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,392
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Re: Body Panel Welding?
Another thing I do to help with warpage is use compressed air to cool the panel after a few tacks and I space the tacks out over the panel, not placing them right next to one another in the same heat cycle if that makes sense.
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#7 |
Senior Member
![]() Join Date: May 2012
Location: Assaria, Ks
Posts: 465
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Re: Body Panel Welding?
It's best if the penetration spots on the back connect to each other the same as the side being welded. That way when you grind, it still has some weld meat continuously throughout the weld.
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