Stick Welding Tips, Certification tests, machines, projects
Luke686
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    Sun Feb 08, 2015 2:01 am

I have been having a problem with undercut while in horizontal position the bead looks good its just a touch of undercut is present i am using a 7018 rod at about a 45 drag angle and insted of a weave using a counterclockwise circlular motion and im still having undercut im not sure why. Any thoughts are helpfull
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    Fri Apr 01, 2011 10:59 pm
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What kind of joint/weld?
Luke686
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    Sun Feb 08, 2015 2:01 am

fillet weld pretty sure if that sounds right i get groove and filet confused
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Image If it looks like this, all you have to do with a 7018 is put the rod in and hold a nice tight arc. You don't need any manipulation with that rod, in that position. Search "welding tips from Bubba" for a good video
Luke686
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    Sun Feb 08, 2015 2:01 am

Thank u i have watched it i think i need to use a better rod angle
Luke686
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    Sun Feb 08, 2015 2:01 am

Thanks for the advice
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Good luck
jwright650
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    Wed Dec 03, 2014 3:27 pm

Also watch the top toe of the weld wash up against the vertical surface as you travel along the joint and make sure to slow down hang around a bit longer so that it can fill in and not leave undercut. I agree with the other about running straight stringers and leave the weave alone.
John Wright
AWS Certified Welding Inspector
NDT Level II UT, VT, MT and PT
NACE CIP Level I Coating Inspector
Luke686
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    Sun Feb 08, 2015 2:01 am

I tried using a diffrent angle and no weave and they really improved Image
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Looking good man
Custum4Life
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    Wed Feb 11, 2015 12:44 am

I was working on that this week and my instructor told me to use no manipulation. To have a 5 degree work angle pointing upward and 5 to 10 degree travel angle. Really allow for toe to crown to fuse together while welding it. My bend test did not break.
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