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I use military cadmium plated connectors in my design. I
have been told that cadmium plating will contaminate nickel
plated connectors as well as contribute to structural
fatigue. Can anyone confirm the validity of these
assumptions,or shed any light on the nature of the
contamination and structural fatigue process?
Ronald J [last name deleted for privacy due to age
of posting]
military avionics producer - West Milford, New Jersey, USA
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Cad plate is not a contamination in any way to nickel
plate. As far as your fatigue question, there are stresses
induced from plating. They may be insignificant. Someone may
be able to tell you definitively, but I suspect that they
will want more details about the processing and the
connectors.
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Jon Barrows
aerospace jobshop
Tulsa, Oklahoma
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This is a reminder to readers, not the writer, to please
look carefully at the design and make sure that the cadmium
plating is indispensable before specifying it. It is a
cumulative poison and other materials should be used instead
if possible.
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Ted Mooney, P.E.
finishing.com
Brick, NJ
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