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 -
592 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

Sci Aps Z-Series Portable Handheld Analysers

The world’s only handheld analyzer that measures carbon content in stainless (yes even L-grades),s
...
teels, and cast irons. Also accepted for low Si analysis for sulfidic corrosion analysis, and is widely used in the power industry for Cr analysis, for flow accelerated corrosion applications.
>

ISONIC 3510

Very Powerful Superior Performance Extremely Portable Smart Phased Array Ultrasonic Flaw Detector an
...
d Recorder with 2 Conventional UT and TOFD Channels uniquely combines PA, single- and multi-channel conventional UT, and TOFD modalities providing 100% raw data recording and imaging. Suitable for all kinds of every-day ultrasonic inspections
>

HD-CR 35 NDT Computed Radiography System

Portable high-resolution CR scanner for all radiography applications - weld testing, profile images
...
and aerospace. No matter what type of radiographic testing you are performing, the unique TreFoc Technology of the HD-CR 35 NDT imaging plate scanner always guarantees the highest image quality.
>

Teletest Focus+

Teletest Focus+ electronics have superior capabilities than rivals on the market. Beyond the usual
...
test features, Focus+ has 24 transmit channels and 24 receive channels, with an additional on-board switching capabilities. The instrument's frequency range is 10–300 kHz.
>

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