Root cracks fillet welds
Root cracks fillet welds
(OP)
Need to determine if root cracks are present in 5/16" fillet welds. Any ideas?
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RE: Root cracks fillet welds
Call us if we can help.
William E. Blum
Managing Director
Bright Technical Services Inc.
www.brighttechnical.com
wblum@brightechnical.com
USA 1-817-274-1262
Fax/Voice Mail 1-435-417-3992
Sweden 46-42-14 39 99
RE: Root cracks fillet welds
RE: Root cracks fillet welds
William E. Blum
Managing Director
Bright Technical Services Inc.
www.brighttechnical.com
wblum@brightechnical.com
USA 1-817-274-1262
Fax/Voice Mail 1-435-417-3992
Sweden 46-42-14 39 99
RE: Root cracks fillet welds
Found this crack on 16% of welds on this project. Currently, doing a weld metal analysis, checking WPS against what was used, and checking mill certs, on material. We have been using this WPS and filler material for 5 years without problem. crackis in welds by multiple welders, using multiple machines. A little baffling.
These welds are in tension and are cyclic, fatigue could be a problem. The Technical Engineering Manager for the wire vendor will be here tomorrow and I am currently working with Edison Welding Institute to determine cause.
RE: Root cracks fillet welds
RE: Root cracks fillet welds
Sometimes with Dry MT, you will actually pick up the void in a tee joint if you have enough amps. You have to be real careful in the application of the particles and observe the indication while VERY LIGHTLY dusting the part. Look at the characteristics of the indication. If it is broad and fuzzy normally, you will be looking at the void created by the joint. If the indication is sharp and distinct, a little light grinding is useful. If the indication appears to be straight-edged,its the fit-up again. One other helpful technique is to "walk" particles across the indication and observe where and how they appear to "hesitate" at the area of the suspected indication.
Richard Schram
Mechanical Integrity Specialist
Pharmacia Global Supply Arecibo-P. Rico
rschram@pharmacia.com
RE: Root cracks fillet welds