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  #11  
Old 12-02-2016, 07:33 AM
RockHillWill RockHillWill is offline
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Nicely done Robert. Thanks!
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  #12  
Old 12-02-2016, 09:44 AM
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Quote:
Originally Posted by k5hart View Post
I look forward to the videos. I'm trying to build my Tig skills. Thanks for posting the information.
Unfortunately my camera loses some of the clarity when used with the welders mask, so I don't know if this provides any benefit, but this was a fusion weld on 19 gauge coupons...


https://www.youtube.com/watch?v=WdtVCBCR3X4




I had some questions about weld placement, so I decided to do some samples that mimicked various body shape types to show the effects.

First, we have a flat version, this would simulate the flat area at the bottom of a door skin...



The second panel has more crown, such as toward the top of a quarter/door skin....



Comparing the two...



Next, we have a repair piece that is joined at the beltline bead...



The flat area distorts quite a bit... Normally we would planish the weld after cooling to remove this distortion, but here it was left to better compare distortion amounts..





Looking at the three samples, the flat one moves/distorts the most. The crowned panel a bit less, the beltline bead even less..



This helps to show the benefit of weld seam locations, we should select anything but the low crown/flat areas if at all possible.. The crowned areas or those with beltline bead details will help to hold any distortion in check.
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  #13  
Old 12-02-2016, 09:53 AM
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This one gave me a lot of clarity and brought home what I have read and heard guys talking about but it hadn't sunk in until I was looking at the pictures.
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  #14  
Old 12-02-2016, 09:38 PM
outsider347 outsider347 is offline
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hows the penetration ?
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  #15  
Old 12-02-2016, 11:37 PM
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hows the penetration ?
Here's the weld proud on the rear side of the beaded panel..


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  #16  
Old 12-06-2016, 03:32 AM
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Thanks for posting Robert .your posts are always very informative
cheers Paul
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