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Welder Performance Testing

Welder Performance Testing

(OP)
When preparing to cut a plate test coupon for side bend testing is it allowable to use thermal cutting method leaving enough material to machine down to the proper thickness?

Thank you

moe27

RE: Welder Performance Testing

What Code? I would say yes.

RE: Welder Performance Testing

(OP)
Code AWS D1.1

RE: Welder Performance Testing

It will take a LOT of machining to completely remove the thermally affected area of that coupon; rule-of-thumb it to slice off all the heat-blued area. Remember, this is to remove 'thermally affected' not the [narrow] HAZ.

RE: Welder Performance Testing

D1.1 dictates that it is permissible provided you leave no less than 1/8" for machining.

RE: Welder Performance Testing

holdpt,
I know that requirement is in ASME IX (QW 462.2) but I cannot see similar in AWS D1.1 ???
only
Figure 4.12
b These edges may be thermal-cut and may or may not be machined.

Have I missed it somewhere (I only have 2010 edition) ?

Cheers,
DD

RE: Welder Performance Testing

DekDee,

Figure 4.13. It is noted on the detail of the top specimen. 4.12 is face and root specimens.

RE: Welder Performance Testing

Thanks holdpt,
Did a word search on "thermal" and it never came up.
Cheers,
DD

RE: Welder Performance Testing

Yes, Almost all codes and specifications that I have dealt with "Allow" thermal cutting provided a certain amount of material is removed on side bends. The requirement to remove the thermal cut metal is referred to in D1.1 Fig 4.13, AWS B4.0 Figure 6.4, ASME Sec IX Figure QW462.22.

In actuality iit is a requirement in many cases to remove the material however there are some cases where subsequent removal is not required.

In ALL cases with guided bend tests, refer to the applicable code or standard.

Have a good day,

Gerald Austin

Gerald Austin
Iuka, Mississippi
http://www.weldingdata.com

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