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 -
538 views
Technical Discussions
Atul Deulgaonkar
Atul Deulgaonkar
07:44 May-19-2001
Ultrasonic testing of forged shaft

While testing it is observed a number of times that shafts do not give any back wall echo even at full gain and using probes of very low fequencies like 1Mhz or 0.5Mhz.
What is interpretation of this phenomenon ?


    
 
 Reply 
 
Anonymous
Anonymous
01:27 May-19-2001
Re: Ultrasonic testing of forged shaft
: While testing it is observed a number of times that shafts do not give any back wall echo even at full gain and using probes of very low fequencies like 1Mhz or 0.5Mhz.
: What is interpretation of this phenomenon ?
.
Try various Pulse Repitition Rates and a 2.25 MHz. Transducer.


    
 
 Reply 
 
Dr. Patel
R & D, Consultant to Universities/Industries
Fallon Ultrasonics/McMaster University, Canada, Joined May 2001, 20

Dr. Patel

R & D, Consultant to Universities/Industries
Fallon Ultrasonics/McMaster University,
Canada,
Joined May 2001
20
06:44 May-19-2001
Re: Ultrasonic testing of forged shaft
: : While testing it is observed a number of times that shafts do not give any back wall echo even at full gain and using probes of very low fequencies like 1Mhz or 0.5Mhz.
: : What is interpretation of this phenomenon ?
: .
: Try various Pulse Repitition Rates and a 2.25 MHz. Transducer.

There are many reasons for that and if you can send us details on probe diameter and contact face, PRF and energy on your pulser, perhaps we can help you interprete the phenomenon. Beam divergence, contact losses, losses due to material properties etc plays a role, however, first we have to establish the sensor and instrument you are using is OK than we can deal with other problems.

Regards

Dr. Patel



    
 
 Reply 
 

Product Spotlight

IntraPhase Athena Phased Array System

The Athena Phased Array system, manufactured by WesDyne NDE Products & Technology, consists of a pha
...
sed array acquisition system and PC running IntraSpect software. A PC is used to perform acquisition, analysis and storage of the data. System hardware is capable of operating up to four data sets with any combination of phased array or conventional UT probes. NOW AVAILABLE IN 64-64 CONFIGURATION.
>

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.
>

Varex Imaging Large Field of View (FOV) Digital Detector Arrays (DDAs)

A larger FOV DDA can reduce the space and volume of the X-ray inspection system on the factory floor
...
, enable faster scanning times, better throughput and better resolution images at a lower dose. Customers can also save time and money. With these benefits in mind, Varex Imaging has designed a family of large FOV detectors (4343HE, XRD 1611, 4343DX-I, 4343CT) for our industrial imaging customers.
>

XRHRobotStar

In high volume industries like automotive the requirement for a hundred percent X-ray inspection c
...
reates a bottleneck in the production. The XRHRobotStar is a fully Automated Defect Recognition (ADR) capable robot-system that allows an ultra-fast in-line inspection.
>

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