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NDT to verify penetration?

NDT to verify penetration?

NDT to verify penetration?

(OP)
Other than destructive testing, does anyone know of any reliable, portable NDT methods of verifying weld penetration? I'm uncertain about UT or RT. The joint is a FCAW fillet weld of 90-60 cast steel to 1026 wrought using E70T-1 wire. Thanks!

RE: NDT to verify penetration?

Why are you uncertain about ultrasonic testing and radiographic testing?  These are the standard nondestructive techniques for analyzing welds.

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

RE: NDT to verify penetration?

Depending on the weld joint configuration, RT and UT are capable NDT methods and are used by Codes and Standards in the boiler, piping and pressure vessel industry.

RE: NDT to verify penetration?

(OP)
The welds are on motor vehicle axles, that's why I was concerned about the effectiveness of a portable method.

RE: NDT to verify penetration?

Portable ultrasonic testing is capable of analyzing the type of welds found on vehicle axles.

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

RE: NDT to verify penetration?

dbooker630;
We use UT for flaw sizing and detection in welds and base metal on various pieces of equipment at our Plants. One word of caution, you should have a qualified NDT inspector perform this activity, and the technique must be verified so that it can be repeated with confidence in production or even in the field.

I can't provide any additional information about your specific application other than contact a local NDT firm and have them evaluate your application. I will say that you might end up having to destructively examine one of the axle welds to provide a suitable mock-up and standard for UT application.

RE: NDT to verify penetration?

Alternatively it is possible to set up a special fixture to measure by US one specific part for one specific threshold of weld penetration. The device operates like a "go-no-go" gage that does not need certified inspector.

http://www.welding-advisers.com/

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