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how to eliminate ring on very top of completed tie in weld

Posted: Sat Dec 26, 2009 3:28 pm
by dalefishhawk
jody, thank you on your responce to my 6g 6 inch carbon steel root pass situation. i did what you suggested in regard to feathering my tacks and after little more than one week the tacks are tied in and they look really good. i have slowed the root pass process just a little bit, thus i have no more undercut and the entire inside circumfrence of the pipe looks very sound,except for the very top when i have finished welding there is that round like ring. could you please advise on how to eliminate or lesson that ring. thank you.

Re: how to eliminate ring on very top of completed tie in weld

Posted: Sun Dec 27, 2009 11:19 pm
by fluxit
You are stopping too soon. Need to continue welding a bit past the tie-in. Remember that penetration always happens behind your arc.