where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

3031 views
Technical Discussions
muhammad aizat
muhammad aizat
04:45 Sep-23-2015
problem statement

im newbie in using ultrasonic equipment.

title: measure of defect sizing on single butt weld using ultrasonic testing

can you guys explain what problem statement for this title?

2
 
 Reply 
 
Paul Holloway
Consultant,
Holloway NDT & Engineering Inc , Canada, Joined Apr 2010, 253

Paul Holloway

Consultant,
Holloway NDT & Engineering Inc ,
Canada,
Joined Apr 2010
253
14:06 Sep-23-2015
Re: problem statement
In Reply to muhammad aizat at 04:45 Sep-23-2015 (Opening).

I think you're going to have to rephrase your question.

Are you referring to the title of a published paper?

Are you trying to trying to perform defect sizing for the first time yourself? In that case, I hope this is in a lab/garage, and not work for a client.

2
 
 Reply 
 
muhammad aizat
Student,
full time student, Malaysia, Joined Sep 2015, 3

muhammad aizat

Student,
full time student,
Malaysia,
Joined Sep 2015
3
17:12 Sep-25-2015
Re: problem statement
In Reply to Paul Holloway at 14:06 Sep-23-2015 .

hello,

Mr Paul holloway

I am a final years student, my final year project is about " of defect sizing on single butt weld using ultrasonic testing. My lecture only provide "defect sizing" only.

So I need help on finding the problem statement for this project, any suggestion or ideas?


1
 
 Reply 
 
Tom Nelligan
Engineering,
retired, USA, Joined Nov 1998, 390

Tom Nelligan

Engineering,
retired,
USA,
Joined Nov 1998
390
19:18 Sep-25-2015
Re: problem statement
In Reply to muhammad aizat at 17:12 Sep-25-2015 .

I may not understand your question correctly, but if you are looking for a quick summary of common sizing techniques, see Section 8 of our ultrasonic flaw detection tutorial:

http://www.olympus-ims.com/en/ndt-tutorials/flaw-detection/

2
 
 Reply 
 
Ed Ginzel
R & D, -
Materials Research Institute, Canada, Joined Nov 1998, 1307

Ed Ginzel

R & D, -
Materials Research Institute,
Canada,
Joined Nov 1998
1307
00:10 Sep-26-2015
Re: problem statement
In Reply to muhammad aizat at 17:12 Sep-25-2015 .

Muhammad, I think it is the wording you are using that has us confused. What do you mean by needing a "problem statement"? Are you looking for options or solutions? Or are you looking for some sort of "statement" as to what will best apply to a particular setup you are using.
If you are a final year student (in a multi-year NDT programme?) I do not think you are a complete Newbie so you must have some idea of what your instructor has requested.
Chapters 8 and 9 in the reference provided by Mr. Nelligan provide a good summary of the main options used in industry. You will need to assess the option best suited for your application by comparing the expectations of your instructor and the imposed demands for any codes or standards that they referenced.

2
 
 Reply 
 
Irfan
NDT Inspector,
Malaysia, Joined Mar 2015, 10

Irfan

NDT Inspector,
Malaysia,
Joined Mar 2015
10
09:15 Sep-30-2015
Re: problem statement
In Reply to Ed Ginzel at 00:10 Sep-26-2015 .


He is probably looking for the relationship between his syllabus content which only described the 'defect sizing' topic in general and how does the topic relevant to his final year assignment topic - "Defect Sizing On Single Butt Weld Using Ultrasonic Testing.(which sound more specific to on site application).

2
 
 Reply 
 
Nigel Armstrong
Engineering, - Specialist services
United Kingdom, Joined Oct 2000, 1096

Nigel Armstrong

Engineering, - Specialist services
United Kingdom,
Joined Oct 2000
1096
17:08 Sep-30-2015
Re: problem statement
In Reply to Irfan at 09:15 Sep-30-2015 .

Do you mean "single-vee butt weld" as this would specify the configuration to contend with?

And is it manual conventional, phased array. TOFD or AUT?

The key to knowing your measurement capabilities is to understand your measuring equipment, the knowledge and skill of the person using that equipment and the accuracy limitations of the chosen measuring method. Much has been written and many claims made about this topic.

Restricting the query to manual UT with single element probe then there are many posts on this site and on the web dealing with how to minimise both length and height sizing errors using methods such as 20 dB (or any other values you choose to plot) drop, max amp. It seems modern NDT / UT training schools are unlikely to teach beam plotting and the capabilities or lack of to properly size a detected defect.

An excellent primer is J D Drury's Ultrasonic Flaw Detection for Technicians available from the BINDT web site.

1
 
 Reply 
 

Product Spotlight

SITEX CPSERIES

Teledyne ICM’s CPSERIES has been designed with a view to revolutionizing the handling and perfor
...
mances of portable X-Ray sets. Despite having managed to halve the weight of similar portable X-Ray generators available on the market (while continuing to provide the same power output), the SITEX CPSERIES generators feature a shutter, a laser pointer, a beryllium window, an aluminum filter and two integrated diaphragms (customized sizes are available upon request). Without compromising the robustness and reliability for which ICM products are renowned, the small size and light weight of the SITEX CPSERIES will radically change the way that you perform your RT inspections. And you will see a positive impact in terms of both quality and return on investment (ROI).
>

Extended Range Variable Wall® Piping Calibration Blocks for Longseam Inspection

This set of two blocks has been specially designed for situations where ultrasonic examination tak
...
es place circumferentially or “around the curve” for applications such as inspection of longseam welds in piping and vessels. Jointly designed by PH Tool and Holloway NDT, the blocks feature side-drilled hole reflectors positioned within novel compound-curves, each with multiple thickness steps. The unique design results in a light and compact form factor, with the largest block weighing just over 15 lbs and spanning just 16 ¾”. Coverage is provided for nominal pipe sizes from 6” to 10” in the small block and 12” to a whopping 56” in the large block. The compound OD curves and multiple wall thicknesses actually exceed ASME requirements, providing exceptional signal response and measurement accuracy. Properly managing beam divergence off the ID and stabilizing beam skew due to probe rocking is essential to maintaining a consistent calibration when inspecting lengthwise on curved surfaces.
>

OmniScan™ X3 flaw detector

The OmniScan X3 flaw detector is a complete phased array toolbox. Powerful tools, like total focus
...
ing method (TFM) images and advanced visualization capabilities, enable you to complete your inspection with greater confidence.
>

PAUT Probes

Typical Phased Array probes have frequencies between 1MHz and 20MHz and the number of wafers is 10
...
to 128. M2 Electronics offers customers conventionally ultrasound probes and the ability to provide high-precision Phased Array Ultrasound Probes of up to 256 wafers. We can also customize the probe for our customers to meet the specific application requirements of the user.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window