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

John Wagner

Engineering
Tenneco Automotive,
USA,
Joined Apr 2004
3
08:08 Apr-15-2004
Ultrasonic Detection of Adhesive Bonds

The product in question is typified by a torus of rubber bonded between two steel cylinders. Has there been any success in detecting disbonds in this type of construct?


 
 Reply 
 
Daniel H. Rice
Daniel H. Rice
00:03 Apr-16-2004
Re: Ultrasonic Detection of Adhesive Bonds
----------- Start Original Message -----------
: The product in question is typified by a torus of rubber bonded between two steel cylinders. Has there been any success in detecting disbonds in this type of construct?
------------ End Original Message ------------
I typed an earlyer message but, got cut off by the demand on the server on my end. This may be a duplicate.
If used properly and the limitations of ultrasonic inspection are observed. You can either image the bond using C-scan or automate using A-scan the inspection of sealers used in automotive applications and some of the rubber components.
I worked on the Henry Ford Technology Award team for 2000 At vehicle ops for North America.
The only company ready to do this is IRT Scan Master A sponser of this Fourm.
They have the only patented high out put transducer that is necessary to perform the inspection of the material in question.
If you need assistance on a full or part time basis I am available to reproduce our qualification method for this inspection.




 
 Reply 
 
Godfrey Hands
Consultant,
PRI Nadcap, United Kingdom, Joined Nov 1998, 307

Godfrey Hands

Consultant,
PRI Nadcap,
United Kingdom,
Joined Nov 1998
307
08:29 Apr-16-2004
Re: Ultrasonic Detection of Adhesive Bonds
----------- Start Original Message -----------
: The product in question is typified by a torus of rubber bonded between two steel cylinders. Has there been any success in detecting disbonds in this type of construct?
------------ End Original Message ------------

Dear John,

We have made some simple trials using Quasar Resonant Inspection (QRI) on some "Vibration Dampers", which in effect are two plates of steel with a rubber block bonded between them, or rather similar to what you describe.

These initial tests suggested that the technology could detect disbonds as well as some other problems in the manufacture.
However, the customer then had a severe reduction in budget, so was unable to pursue the technology further.
These tests were made here in the United Kingdom, but Quasar International is based in Albuquerque, NM.

I suggest you contact the office over there on (505) 247 9660.

Regards,

Godfrey Hands


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

John O'Brien

Consultant, -
Chevron ETC ,
USA,
Joined Jan 2000
280
00:22 Apr-19-2004
Re: Ultrasonic Detection of Adhesive Bonds
We have successfully done work with very thick metal to rubber composites using Acousto-Ultrasound. Try talking to Physical Acoustics princeton new jersey its their technology we use.




 
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