where expertise comes together - since 1996

Web's Largest Portal of Nondestructive Testing (NDT)
Open Access Database (Conference Proceedings, Articles, News), Exhibition, Forum, Network

All Forum Boards
Technical Discussions >
Ultrasonic Testing of Adhesive Bonds
Career Discussions
Job Offers
Job Seeks
Classified Ads
About NDT.net
Articles & News

482 views
04:46 May-12-2004

John Wagner

Engineering
Tenneco Automotive,
USA,
Joined Apr 2004
3
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.


 
03:39 May-12-2004

John O'Brien

Consultant, -
Chevron ETC ,
USA,
Joined Jan 2000
278
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.


 
06:00 May-13-2004
Richard Kazares
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 ------------




 


© NDT.net - The Web's Largest Portal of Nondestructive Testing (NDT) ISSN 1435-4934

Open Access Database, |Conference Proceedings| |Articles| |News| |Exhibition| |Forum| |Professional Network|