Wednesday, October 28, 2015

RE: [MW:23820] Welders Qualification Filletwelds.

 

Good Morning,

Instead of the normal brake test I have used production mockups to qualify Procedures and Welders.

 

Hope this answers your question.

 

Best Regards,

 

 

QW-181.1.1 Production Assembly Mockups. Production

assembly mockups may be used in lieu of

QW-181.1. The mockups for plate-to-shape shall be cut

transversely to provide five approximately equal test specimens

not to exceed approximately 2 in. (50 mm) in length.

For pipe-to-shape mockups, the mockup shall be cut transversely

to provide four approximately equal test specimens.

For small mockups, multiple mockups may be required to

obtain the required number of test specimens. The test

specimens shall be macro-examined to the requirements

of QW-183.

 

QW-181.2 Performance. The dimensions and the preparation

of the fillet-weld test coupon for performance qualification

shall conform to the requirements in figure QW-462.4(b)

or figure QW-462.4(c). The test coupon for

plate-to-plate shall be cut transversely to provide a center

section approximately 4 in. (100 mm) long and two end

sections, each approximately 1 in. (25 mm) long. For pipeto-

plate or pipe-to-pipe, the test coupon shall be cut to

provide two quarter sections test specimens opposite to

each other. One of the test specimens shall be fracture

tested in accordance with QW-182 and the other macroexamined

to the requirements of QW-184. When qualifying

pipe-to-plate or pipe-to-pipe in the 5F position, the test

specimens shall be removed as indicated in figure

QW-463.2(h).

 

QW-181.2.1 Production Assembly Mockups. Production

assembly mockups may be used in lieu of the fillet weld

test coupon requirements of QW-181.2.

 

Jim Price | Welding Engineer, CWI

Direct:  320.7463439 | Fax: 417-862-5564

jimprice@polarcorp.com

 

 

 

 

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Hans van Es
Sent: Wednesday, October 28, 2015 3:03 AM
To: Materials & Welding
Subject: [MW:23815] Welders Qualification Filletwelds.

 

Goodmorning.

 

To qualify a welder who's weld a filletweld, you have to take 1 macroetch and 1 fracture test.

The question is : When it is not possible to break the fracture test or when the fracture test doesn't breaks, what is the possibility (according ASME IX) to qualify the welder.?

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