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Message:
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I’m a Senior NDT Test Examiner at Newport News Shipbuilding (Northrop Grumman). Could someone point me in the right direction of where I might find a mold showing weld roughness? In my MIL-STD-250-1500-1 world, the roughest the weld can be for VT/MT/PT is 1000 Ra (roughness average). We’ve had a 1000 Ra sample for decades, but we have no documentation of who checked it or how it was checked. The sample we use now is a 3” L x 3” W (weld is 1-1/2” wide) flat plastic mold of a butt weld welded with 6010. Some tee-welds and pipe butts would be more representative of what we deal with on a daily basis. What is used in AWS, etc. for visually inspecting the weld roughness attribute? If someone could help me, I would be deeply appreciative. Thanks.
Rick Humphries NDT Test Examiner
QID Bldg. 134 Phone: 757-688-5438
Fax: 757-688-1034 / Pager 888-7629
humphries_mr@nns.com
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Information
VT - Visual Testing
Email: wblum@ndt-cgi.com
