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 -
585 views
Technical Discussions
John Wagner
Engineering
Tenneco Automotive, USA, Joined Apr 2004, 3

John Wagner

Engineering
Tenneco Automotive,
USA,
Joined Apr 2004
3
04:46 May-12-2004
Ultrasonic Testing of Adhesive Bonds

The product is an automotive suspension component consisting of a torus of rubber molded between and bonded to two
coaxial steel cylinders. Attempts to test the bond via ultrasonics required submersion of the product in water. The result, even if successful, is an unsaleable product. What is needed is a technique for evaluating the bond on prototypes developed to complete FMEA testing prior to full scale production. Any suggestions for an application generally applicable to a range of products of this type would be appreciated.


 
 Reply 
 
John O'Brien
Consultant, -
Chevron ETC , USA, Joined Jan 2000, 280

John O'Brien

Consultant, -
Chevron ETC ,
USA,
Joined Jan 2000
280
03:39 May-12-2004
Re: Ultrasonic Testing of Adhesive Bonds
Try calling NDT Automation Division of Physical Acoustics in Princeton New Jersey. Their T-SCOUT System may do the job.


 
 Reply 
 
Richard Kazares
Richard Kazares
06:00 May-13-2004
Re: Ultrasonic Testing of Adhesive Bonds
As you probably know, there are more ways than submersion in water to introduce an ultrasonic coupling techniques.

We have successfully used squirters, bubblers (weepers) - which use minute amounts of water only on the surface, and other elastomer couplants - which are typically used in wheel probes - but can also be fixed - WITHOUT any water couplant (or other gel-like materials) used.

Depending on your inspection requirements (I'm assuming you are looking for the bond between metal and elastomer - but you could possibly be looking at the elastomer consistency itself) there are other factors that might come into play.

I'd be happy to answer you directly - and in more detail, just send an e-mail.

----------- Start Original Message -----------
: The product is an automotive suspension component consisting of a torus of rubber molded between and bonded to two
: coaxial steel cylinders. Attempts to test the bond via ultrasonics required submersion of the product in water. The result, even if successful, is an unsaleable product. What is needed is a technique for evaluating the bond on prototypes developed to complete FMEA testing prior to full scale production. Any suggestions for an application generally applicable to a range of products of this type would be appreciated.
------------ End Original Message ------------




 
 Reply 
 

Product Spotlight

NDT Master Lecturer

In the program both university professors and practitioners will give lectures, which guarantees the
...
oretical depth and practical inside. Academic Director: Prof. Dr. Christian Boller
The following lecturers are not complete: Prof. Tadeusz Stepinski, Prof. Wieslaw Staszewski, Prof. Frank Walther, Prof. Giovanni Bruno, Prof. Gerd Dobmann, Prof. Philippe Guy
>

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.
>

PROlineTOP Plug & Play Ultrasonic inspection device

As Plug & Play solution it units all control and operation elements in a small housing and therefo
...
re replaces the typical control cabinet...
>

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.
>

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