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- since 1996 -
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Technical Discussions
Vinoth
India, Joined Jan 2014, 5

Vinoth

India,
Joined Jan 2014
5
17:08 Jan-28-2014
UT of TKY Tubular joints

Hi Genius,,
Good day for all,, i have some idea about, How to scan TKY Tubular joints, but i knew this small thing not enough to scan a TKY joint,, I have few doubts on it,, pl solve my questions,
1) TKY tubular joints scanning patterns or techniques,,
2) How to measure the surface distance K Y joints,,
3) How to mark the repair Location in K Y joints,,
4) How to split the zones,,
here no need follow any standards, i,m asking testing procedure,,

Thanks

 
 Reply 
 
Nigel Armstrong
Engineering, - Specialist services
United Kingdom, Joined Oct 2000, 1096

Nigel Armstrong

Engineering, - Specialist services
United Kingdom,
Joined Oct 2000
1096
19:12 Jan-28-2014
Re: UT of TKY Tubular joints
In Reply to Vinoth at 17:08 Jan-28-2014 (Opening).

Do as nearly all people do and pay for professional training from a reputable training establishment with skilled and experienced trainers and a good range of appropriate test pieces and associated paraphernalia. Thinking that you can learn how to test TKYs (or any other joint) from an answer on a forum is a big mistake.

What does this mean? :

"here no need follow any standards, i,m asking testing procedure,,"?

 
 Reply 
 
Vinoth
India, Joined Jan 2014, 5

Vinoth

India,
Joined Jan 2014
5
21:11 Jan-28-2014
Re: UT of TKY Tubular joints
In Reply to Nigel Armstrong at 19:12 Jan-28-2014 .

well said,, Mr Armstrong,,
i ll do as per the training schedule,, before that i try to learn,, still i expect good response,,

 
 Reply 
 
anjafo
NDT Inspector
Norway, Joined Aug 2009, 204

anjafo

NDT Inspector
Norway,
Joined Aug 2009
204
08:45 Jan-29-2014
Re: UT of TKY Tubular joints
In Reply to Vinoth at 21:11 Jan-28-2014 .

try google "dnv classs notes 7 ndt" for a free UT standard to use.
not ideal just choosing something but better than nothing. as per not using a standard i can only hazzard a guess that production is more important than quality. not every one has luxury of a nice client.

 
 Reply 
 
Nigel Armstrong
Engineering, - Specialist services
United Kingdom, Joined Oct 2000, 1096

Nigel Armstrong

Engineering, - Specialist services
United Kingdom,
Joined Oct 2000
1096
11:21 Jan-29-2014
Re: UT of TKY Tubular joints
In Reply to Vinoth at 21:11 Jan-28-2014 .

Expect something and you will likely be disappointed - to offer something is more satisfying.

Your starter to a stellar career as a T,K,Y specialist:

If there is inner access to the main tubular then 0 degree fusion face check.
Whilst scanning from the minor tubular, don't follow the tubes contours - keep rectilinear to the weld direction, even if your probe is going across the curvature of the minor.

Get professional training!

Delighted to assist you in your expectation of a good response.

Good luck, Vinoth

 
 Reply 
 
Nigel Armstrong
Engineering, - Specialist services
United Kingdom, Joined Oct 2000, 1096

Nigel Armstrong

Engineering, - Specialist services
United Kingdom,
Joined Oct 2000
1096
11:24 Jan-29-2014
Re: UT of TKY Tubular joints
In Reply to Nigel Armstrong at 11:21 Jan-29-2014 .

P.S. Use welding wire to mimic the scanning surfaces.

 
 Reply 
 
Jon Wallis
NDT Inspector, -
Netherlands, Joined Feb 2010, 626

Jon Wallis

NDT Inspector, -
Netherlands,
Joined Feb 2010
626
11:43 Jan-31-2014
Re: UT of TKY Tubular joints
In Reply to Nigel Armstrong at 11:24 Jan-29-2014 .

...and with the welding wire shaped to the contour, make scale drawings of the weld and parent metal so that you can follow where your sound path is going to. I always used a profile comb (a bar holder with lots of needles) - very useful.

 
 Reply 
 
Nigel Armstrong
Engineering, - Specialist services
United Kingdom, Joined Oct 2000, 1096

Nigel Armstrong

Engineering, - Specialist services
United Kingdom,
Joined Oct 2000
1096
12:46 Jan-31-2014
Re: UT of TKY Tubular joints
In Reply to Jon Wallis at 11:43 Jan-31-2014 .

Sorry my bad - I should have written solder wire - maintains its pliability and ductility (are they the same?) much more than welding wire.

A mimic is fine except where the configuration prevents access for the bar holding the pins . Solder wire never gives this problem.

 
 Reply 
 

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