Erik,
        We have performed some cured adhesive strength testing in the past
and I prefer a "torque test".  It is easier to perform.  It uses a "U shaped
tool" that is placed over the part and then the part /tool is twisted using
a torque gage and the max. force recorded.
                                        Just a thought,
                                        Mark Spitnale
                                        Hughes Defense Communications
                                        [log in to unmask]



At>Sender: TechNet Mail Forum<[log in to unmask]>
>>From: Erik Olson <[log in to unmask]>
>>Organization: Westell, Inc.
>>Subject:      [TECHNET] Adhesive Testing
>>To: [log in to unmask]
>>
>>Hi TechNetters,
>>
>>I'm planning an experiment to test adhesive screen printing used to attach
>bottomside components to a PCB.  My first thought for how to test this is to
>measure the strength of the adhesive bond between the board and the
>components.  Is anyone out there familiar with the equipment and steps
>required to perform what I've heard referred to as a "pull test"?  And, are
>there any other variables/parameters that are useful to measure in a test of
>adhesive screen printing?
>>
>>Erik Olson
>>Manufacturing Engineer
>>Westell, Inc.
>>
>>
>-
>
----------------------------------
Mark W. Spitnale                Phone: (219) 429-5992   Fax: (219) 429-4688
Hughes Defense Communications                           Mail Stop: 25-31
1010 Production Road, Fort Wayne, IN 46808-4106
Email: [log in to unmask]