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Up Topic Welding Industry / General Welding Discussion / Welder Qualification criteria
- - By keshav1987 (*) Date 06-05-2018 07:30
Hi team

Please let me know . Whether can we qualify the welder from 2F welding position to 3G directly  without qualifying 3F ,4F ,1G & 2G .

Let me know your comments  & requirement , If I can qualify the welder from 2F to 3G directly .
Parent - - By jwright650 (*****) Date 06-05-2018 11:10
Are you working with AWS D1.1?

The welder can qualify in any position without having to qualify a different position first, there are no prerequisites.
Now if you are asking if the welder qualifying in a 2F position is also qualified to weld in a 3G position, the answer is no.
AWS D1.1:2015 Table 4.10. A test taken in 2F qualifies for Flat and Horz fillets only with plate, pipe, and box tube.
To get qualified for 3G the welder will need to take a test in 3G.
Parent - By keshav1987 (*) Date 06-06-2018 06:49
Thanks for the information
Parent - By jwright650 (*****) Date 06-05-2018 11:11
Welcome to the forum :cool:
Parent - - By welderbrent (*****) Date 06-05-2018 16:38
Good Day keshav,

WELDCOME TO THE ORIGINAL AWS WELDING FORUM!!! THE GREATEST WELDING FORUM IN THE WORLD...BAR NONE!

As John stated, you don't even need 2F or any other test first.  If 3G gets you where you want to go just test to 3G.  That qualifies for flat, horizontal, and vertical for both fillets and groove welds, as long as we are talking about D1.1 in particular and some others as well.

He Is In Control, Have a Great Day,  Brent
Parent - By keshav1987 (*) Date 06-06-2018 06:52
Thanks for the information !!!!!
Really helpful for me
- - By keshav1987 (*) Date 06-07-2018 10:23
Hello Friends

In Drawing the inspection of a welding Joint is given as "UT & MT " .
As a alternative can I go for UT & DPT ?

Because UT will cover all the internal part of joint   & DPT will cover the Surface of joint  .

Please let me know your comments .
Parent - - By 803056 (*****) Date 06-08-2018 01:16
Based on AWS A2.4 the standard abbreviation for dye penetrant testing is PT. DPT is considered by many people in the industry to be antiquated.

MT is often preferred for ferromagnetic materials because it is faster and will detect slightly subsurface discontinuities. Keep in mind that rounded discontinuities can produce weak magnetic particle indications (if any is produced).

Welcome.

Al
Parent - - By keshav1987 (*) Date 06-08-2018 06:28
Ok thanks for your valuable input  !!!!

Let me know , whether can I use PT in place of MT .

My sub surface defect , I can detect through UT .
Parent - By 803056 (*****) Date 06-08-2018 12:31
That' is up to your customer. If they specified PT, that's what they want. If you would prefer to use MT, I would ask for their concurrence.

Al
Parent - By welderbrent (*****) Date 06-08-2018 17:47
When already specified, it isn't a matter of a public opinion poll or even what the codes may allow.  It would require the consent of the Engineer/Customer via the RFI process. 

Both have their strengths and weaknesses.  Normally MT is used for many reasons, speed, clean up, etc.  But, there can be good reason to use PT instead.

He Is In Control, Have a Great Day,  Brent
- - By keshav1987 (*) Date 06-11-2018 11:36
Hi Friends

Please let me know , Where can I Download the soft copy of AWS D1.1 & AWS D14.3
IF any one can send the link , will be really helpful  to me .
Parent - By jrw159 (*****) Date 06-11-2018 12:53 Edited 06-11-2018 12:56
https://pubs.aws.org/?_ga=2.80767383.102799212.1528721477-762158238.1524057691

D1.1 -  https://pubs.aws.org/p/1650/d11d11m2015-2nd-printing-structural-welding-code-steel

D14.3 - https://pubs.aws.org/p/1039/d143d143m2010-amd1-specification-for-welding-earthmoving-construction-and-agricultural-equipment

jrw159
Parent - By welderbrent (*****) Date 06-11-2018 21:51
Just go to the top of the page, click on 'AWSWebsite'.  Then go to the Bookstore button.  Once you find them, just go through the checkout procedures with your credit card.

You can purchase either one in a digital of hard copy print edition. 

You DID want to purchase a legitimate copy for your use?? Right? 

Brent
- By 803056 (*****) Date 06-12-2018 02:37
I strongly urge you to resist purchasing an electronic copy. You will be sorely disappointed if you do. It will only be accessible from one computer. You will not be able to use it on a different compute if the original computer craps out and you have to replace it.

Al
- - By keshav1987 (*) Date 06-13-2018 10:57
Hi Friends

Please let me know , How to qualify welder for 3G position without back up plate .
How the Plate joint should be made ?
How the welding should be ( Top to bottom ) or ( Bottom to top )

Keshav puri
AWS-CWI
Parent - - By Lawrence (*****) Date 06-13-2018 11:36
Keshav,

Welcome to the Forum !!!!

You will get more and better responses if you start an original question thread.

When you do start your new thread, please tell us more about your project.

To which code are you doing the work  (AWS D1, or ASME, or ISO,,)

Tell us the process  (SMAW, GMAW, FCAW)

Tell us what the production conditions demand...(top to bottom "vertical down" , bottom to top "vertical up", or both)

Thickness of plate

Material type

If AWS D1.1  you will also need to qualify your WPS (procedure) since you are considering "no backing"
Parent - By keshav1987 (*) Date 06-14-2018 04:00
Hi Lawrance

Thanks for the information

I am following AWS D1.1 , GMAW , Process in actual job is top to bottom .
Plate thickness - 20 mm .

For welder qualification , How the  joint design should be made for qualification & how we need to validate their qualification ( RT or any other method ) .

thanks
Keshav
Up Topic Welding Industry / General Welding Discussion / Welder Qualification criteria

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