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July 2004

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From:
"Whittaker, Dewey (AZ75)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 19 Jul 2004 08:11:56 -0700
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Well those are some pressing issues that you have, hopefully, accurately
gauged. I don't know the end use, but it does take some unique skills to
install pins in PWBs. You can be compliant, but not in compliance. Some
deformation of the plated through-hole wall and character will lead to
better integrity when force is applied in a calculated manner.
All holes look and act alike, till you pin one up against the wall. It's
like installing septic systems in Arizona; you have to drill some test holes
first to demonstrate you have your**** well for those of you who know me I
will spare you all the bad puns I could do with this one.
Dewey

-----Original Message-----
From: Collins Graham [mailto:[log in to unmask]]
Sent: Friday, July 16, 2004 10:59 AM
To: [log in to unmask]
Subject: [TN] press fit connectors


Hello Technet!
A question for the press fit connector gurus out there.  We are looking
at a job that uses a couple of 160 pin press fit connectors, and I've
never pressed connectors (yet).  We aren't going to be building a lot of
these, so I'm trying to figure out what the minimal tooling I can get
away with would be.  I am assuming that I will need:
 - some support tooling to hold the board and prevent the pressing
operation from destroying it.
 - tooling to hold the connector and distribute the load over the
connector
 - a press - will a manual press do?

Assuming the board is properly designed (a fair assumption as it's
being produced elsewhere already), is there anything else I need?  Is a
flat plate with holes matching up with the pin locations sufficient for
the base?

Thanks, and have a good weekend!

regards,

Graham Collins
Process Engineer,
Northrop Grumman Canada Corporation
Halifax
(902) 873-2000 ext 6215

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