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171 views
01:12 May-10-1999
Wieslaw Bicz
ND Inspection of Resistance Spot Welds

Ricardo Rios-Jordana wrote:

: Dear sirs: I am interested to know if there are NDT
: which could be applied to on line resitance spot welding
: equipment, or to know some literature on this subject
: Thank you in advance

It is possible, to make ultrasonic measurements on line (see: Krautkrämer), but this simple method
doesn´t seem to be very reliable.

It is possible to use for this purpose our holographic method,that we have developed for
fingerprint recognition (see: http://www.optel.com.pl/article/english/article.htm ).
We are interested in developing this method for this purpose, but we need a partner, interesting in financing and/or
using this development.

Using such holographic device, it would be possible to see in real time the contact surface and
the material changes in the neighbourhood.

Wieslaw Bicz



 


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