X-ray?

By flamin

Date 10-17-2010 14:09

Incomplete Fusion

By wagon83 (**)

Date 10-17-2010 14:16

incomplete fusion is not the same as IP?

By flamin

Date 10-17-2010 14:18 Edited 10-17-2010 14:21

IP Internal Porosity?

By F-17

Date 10-17-2010 15:45

Round here they call it LOF = lack of fusion or "Hollow bead" which means a defect in between 2 passes..............turn it up or slow down the travel speed and burn it in there,I'd turn it up myself. IP is insufficiant penetration which means...............either a better fit up is needed or turn it up.

By up-ten

Date 10-17-2010 16:43

You'd think the x-ray tech could offer a little more than he just knows what it looks like.

By L51174

Date 10-18-2010 13:54

I'm pretty sure that knowledge of weld process discontinuities is a prerequisite for obtaining level II RT certification. Sorry to say but if an RT hand doesn't know what Incomplete Fusion (LOF) is, he's got no business doing RT on welds. The other guy was probably just a helper, or worse yet, a trainee, who, given the quality of his mentor, probably will also never know what LOF is.

By dbigkahunna (****)

Date 10-17-2010 17:07 Edited 10-17-2010 17:18

What kind of weld are you talking about and what process.

http://www.slideshare.net/jacobrajeev/pipeline-welding-presentation

http://www.scribd.com/doc/37047774/Pipeline-Welding-Handbook

http://mecheng.110mb.com/4B/ME538/ME538-8.2-Weld%20Quality%20&%20Defects,%20Part%202-Geometric%20Defects.pdf