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August 1999

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Subject:
From:
David Hillman <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 23 Aug 1999 14:48:54 -0500
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Hi Graham! A standard industry  point of reference is that any process that
joins two metals with a filler metal without melting  and is below 800 F is
termed soldering. A process that joins two metals with a filler metal
without melting and is above 800 F is termed brazing. There are processes
such as joining two aluminum sheets together with a filler metal (without
melting the two Al sheets) at temperatures around 1100 F.  Unless the
flexprint is really thermally tough I imagine the customer meant a
soldering process instead of a brazing process.  Have fun.

Dave Hillman
Rockwell Collins
[log in to unmask]





"Collins, Graham" <[log in to unmask]> on 08/23/99 02:02:50 PM

Please respond to "TechNet E-Mail Forum." <[log in to unmask]>; Please respond
      to "Collins, Graham" <[log in to unmask]>

To:   [log in to unmask]
cc:
Subject:  [TN] brazed connector on flexprint




Hi TechNet
Today's question:  A friend outside my company has a RFQ for a job that
calls for connector pins brazed to a flexprint.  He's not sure what this
means.  Is this requirement unusual, and is it different from soldering the
pins to the flexprint?  I know that brazing is joining two metal surfaces
with a third, different metal, which could include soldering, but I'm
wondering if something else is meant by this.

regards,

Graham Collins
Process Engineer,
Litton Systems Canada, Atlantic Facility
(902) 873-2000 ext 6215

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