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 -

1909 views
Technical Discussions
Pavel Pauliny
Pavel Pauliny
01:08 Oct-24-2000
Ultrasonic tress meter

We are looking for manufacture company for Ultrasonic tress meter for measurement of hoop residual stress in monoblock railway wheels.



    
 
 
Pavel Pauliny (Rolf Diederichs)
Director
PP-Kontroltech, Slovak Republic, Joined Oct 2000, 1

Pavel Pauliny (Rolf Diederichs)

Director
PP-Kontroltech,
Slovak Republic,
Joined Oct 2000
1
02:20 Oct-24-2000
Re: Ultrasonic tress meter
Dear Forum Members,

it is important to enter without spelling errors your email address.
The Forum profile of Pavel Pauliny was registered with the email address "pauliny@ba.telekom.sk".
But in his first message Pavel Pauliny used "pauliny@ba.telecom.sk" as email address,
thus the database could not recognize the correct Forum profile.

Rolf Diederichs

-------------
: We are looking for manufacture company for Ultrasonic tress meter for measurement of hoop residual stress in monoblock railway wheels.




    
 
 
Dave Wilkes
Dave Wilkes
00:02 Oct-25-2000
Re: Ultrasonic tress meter



    
 
 
Godfrey Hands
Consultant,
PRI Nadcap, United Kingdom, Joined Nov 1998, 293

Godfrey Hands

Consultant,
PRI Nadcap,
United Kingdom,
Joined Nov 1998
293
07:23 Oct-26-2000
Re: Ultrasonic tress meter
: We are looking for manufacture company for Ultrasonic tress meter for measurement of hoop residual stress in monoblock railway wheels.

Hi.
We represent Quasar International Inc. in the United Kingdom (and through much of Europe).
Their RI-2000 instrument measures compressive Residual Stresses in many components, such as Bearing Elements, Turbine Disks, Railway Wheels etc.

They have also used this equipment sucessfully in detecting fatigue cracks in Railway Wheels.

Please email me for more information, or see our web pages.

Godfrey@hands-ndt.co.uk
www.hands-ndt.co.uk

Regards,

Godfrey Hands




    
 
 
Dave Utrata
R & D,
Center for NDE, Iowa State University, USA, Joined Feb 2000, 37

Dave Utrata

R & D,
Center for NDE, Iowa State University,
USA,
Joined Feb 2000
37
07:57 Oct-26-2000
Re: Ultrasonic tress meter
: We are looking for manufacture company for Ultrasonic tress meter for measurement of hoop residual stress in monoblock railway wheels.

The Fraunhofer Institute in Saarbrucken has developed a device based on UT to measure such stresses; if you contact them, give my reagrds to Eckhardt Schneider, the gentleman you should talk to on this matter.

The Polish Academy of Sciences also developed a device along similar principles, but it did not evolve into such a comprehensive package as the German device. However, I personally found this device quite useful and portable in my previous work. The gentleman to talk to there is Jacek Szelazek. Again, give my regards should you contact him.

I must also confess that the suggestion of using RI techniques, as suggested in another response posted here, truly surprises me. I am very suspicious of claims to determine residual stresses in railway wheels by this method, particularly keeping in mind the other changes, metallurgical and geometric, that wheels go through during service.

Regards,
Dave Utrata

p.s. here are two e-mail addresses for the gentlemen I indicated:

schneider@izfp.fhg.de
jszela@ippt.gov.pl


    
 
 
Rolf Diederichs
Director,
NDT.net, Germany, Joined Nov 1998, 604

Rolf Diederichs

Director,
NDT.net,
Germany,
Joined Nov 1998
604
09:52 Oct-26-2000
Re: Ultrasonic tress meter
Eckhardt Schneider is member of this forum, so he may listen our talks.
His profile provides a query to his 6 published articles currently on this server.
For example: Ultrasonic Evaluation of Stresses in the Rims of Railroad Wheels
http://www.ndt.net/article/ecndt98/rail/306/306.htm

Rolf Diederichs

-----------
: : We are looking for manufacture company for Ultrasonic tress meter for measurement of hoop residual stress in monoblock railway wheels.

: The Fraunhofer Institute in Saarbrucken has developed a device based on UT to measure such stresses; if you contact them, give my reagrds to Eckhardt Schneider, the gentleman you should talk to on this matter.

: The Polish Academy of Sciences also developed a device along similar principles, but it did not evolve into such a comprehensive package as the German device. However, I personally found this device quite useful and portable in my previous work. The gentleman to talk to there is Jacek Szelazek. Again, give my regards should you contact him.

: I must also confess that the suggestion of using RI techniques, as suggested in another response posted here, truly surprises me. I am very suspicious of claims to determine residual stresses in railway wheels by this method, particularly keeping in mind the other changes, metallurgical and geometric, that wheels go through during service.

: Regards,
: Dave Utrata

: p.s. here are two e-mail addresses for the gentlemen I indicated:

: schneider@izfp.fhg.de
: jszela@ippt.gov.pl




    
 
 
Godfrey Hands
Consultant,
PRI Nadcap, United Kingdom, Joined Nov 1998, 293

Godfrey Hands

Consultant,
PRI Nadcap,
United Kingdom,
Joined Nov 1998
293
08:26 Oct-27-2000
Re: Ultrasonic tress meter
: Eckhardt Schneider is member of this forum, so he may listen our talks.
: His profile provides a query to his 6 published articles currently on this server.
: For example: Ultrasonic Evaluation of Stresses in the Rims of Railroad Wheels
: http://www.ndt.net/article/ecndt98/rail/306/306.htm

: Rolf Diederichs

: -----------
: : : We are looking for manufacture company for Ultrasonic tress meter for measurement of hoop residual stress in monoblock railway wheels.

: : The Fraunhofer Institute in Saarbrucken has developed a device based on UT to measure such stresses; if you contact them, give my reagrds to Eckhardt Schneider, the gentleman you should talk to on this matter.

: : The Polish Academy of Sciences also developed a device along similar principles, but it did not evolve into such a comprehensive package as the German device. However, I personally found this device quite useful and portable in my previous work. The gentleman to talk to there is Jacek Szelazek. Again, give my regards should you contact him.

: : I must also confess that the suggestion of using RI techniques, as suggested in another response posted here, truly surprises me. I am very suspicious of claims to determine residual stresses in railway wheels by this method, particularly keeping in mind the other changes, metallurgical and geometric, that wheels go through during service.

: : Regards,
: : Dave Utrata

: : p.s. here are two e-mail addresses for the gentlemen I indicated:

: : schneider@izfp.fhg.de
: : jszela@ippt.gov.pl


Hi,
In reply to the surprise that Resonant Inspection can determine levels of residual stress in railroad wheels, I would like to add the following comments.

Normal Resonant Inspection, where the wheel is excited with a hammer (wheel tapping) will definitely be influenced by such factors as geometric and metallurgical changes.
The Quasar Resonant Inspection system uses the mathematical relationships between several different (modes of) resonances to compensate for these other changes.
This means that our measurements are largely not influenced by these otherwise interfering changes.
These methods are patented by Quasar.

Regards,

Godfrey Hands



    
 
 
Massimo Carminati
Consultant
procontrol, Italy, Joined Jul 2000, 6

Massimo Carminati

Consultant
procontrol,
Italy,
Joined Jul 2000
6
09:23 Oct-27-2000
Re: Ultrasonic tress meter
: We are looking for manufacture company for Ultrasonic tress meter for measurement of hoop residual stress in monoblock railway wheels.

I'm the Quasar Development Engineer for Italy and I would like to confirm Mr. Godfrey Hands suggestions, because I have had some promising results on these items too. About geometric variations during service, it is a very good argument, but, for example, the diameter reduction caused by wearing, will affect only the resonance frequencies related to the wheel race.

For more informations please contact also

Jim Schwarz Jim@quasarintl.com
Robert H. Nath Bob@quasarintl.com





    
 
 
Dave Utrata
R & D,
Center for NDE, Iowa State University, USA, Joined Feb 2000, 37

Dave Utrata

R & D,
Center for NDE, Iowa State University,
USA,
Joined Feb 2000
37
01:29 Nov-03-2000
Re: Ultrasonic tress meter
: Hi,
: In reply to the surprise that Resonant Inspection can determine levels of residual stress in railroad wheels, I would like to add the following comments.

: Normal Resonant Inspection, where the wheel is excited with a hammer (wheel tapping) will definitely be influenced by such factors as geometric and metallurgical changes.
: The Quasar Resonant Inspection system uses the mathematical relationships between several different (modes of) resonances to compensate for these other changes.
: This means that our measurements are largely not influenced by these otherwise interfering changes.
: These methods are patented by Quasar.

: Regards,

: Godfrey Hands


With all respect, I am still skeptical that resonant inspection could do much more than provide a go/no-go interpretation of (hoop) stress in railroad wheels. Previous work that I was involved with indicated that both surface readings and a bulk reading would be necessary to render a full picture of the state of stress in wheels. In such a manner, the bulk effects of a stress gradient could be weighed by how high of a stress was concentrated toward the front or rear rim face. The consequences of knowing how stress is distributred in a wheel rim is as important as knowing how much "total" hoop stress is present.



    
 
 
Arnulfo
Arnulfo
07:50 Dec-06-2006
Anton
5e6a9d3147aa


    
 
 

Product Spotlight

AMIGO2

TSC Amigo2 - ACFM technology has developed a solid reputation for accurately detecting and sizing
...
surface-breaking cracks through paint and coatings. As the industry demands increased performance in speed, signal quality, and portability, it’s time for an evolution. It’s time for Amigo2.
>

TOPAZ® 64: Fully Integrated Portable 64 Channel PAUT Instrument with FMC & TFM

Introducing TOPAZ64, the industry’s most intelligent fully integrated, portable 64-channel phased
...
array ultrasound (UT) instrument. TOPAZ64 combines code-compliant phased array UT with the industry’s most advanced full matrix capture (FMC) and total focusing method (TFM) capabilities. Featuring the highest acquisition frequency in its class, high resolution FMC and a 12” multi-touchscreen, users can easily visualize even the smallest flaws. TOPAZ64 can generate a bipolar pulse that provides more acoustic energy versus previous models for punching through thick components. The result is a portable tool that delivers increased inspection coverage, more accurate signals, and the ability to handle all UT inspections in one package. TOPAZ64 is ideal for challenging applications in transportation, oil and gas, manufacturing and power generation.
>

High-performance Linear Phased Array Probes

Available to order from stock in a range of 5MHz – 7.5MHz and from 16 to 64 elements. Designed w
...
ith piezo-composite elements, Phoenix phased array probes provide high-resolution imaging to maximise sensitivity; accurate ultrasonic detection and sizing of defects in welds; and effective corrosion mapping. Housed in a rugged stainless steel case for on-site industrial NDT applications.
>

Navic - Steerable Modular Automated Scanner

The Navic is a modular, motorized, steerable scanner designed to carry multiple attachments used
...
in various scanning and inspection applications. The Navic is capable of weld scanning (girth welds and long seam welds), automated corrosion mapping, and tank scanning.
>

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