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October 2008

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Subject:
From:
"Woolley, Mark D. (Mark)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Woolley, Mark D. (Mark)
Date:
Mon, 13 Oct 2008 10:13:35 -0600
Content-Type:
text/plain
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text/plain (80 lines)
Eric,
There is not a good metallurgical difference between soldering and
brazing except for temperature.  Brazes typically melt at higher
temperatures than solders.  But I'm sure there is some overlap between
the two. 
mark

Mark Woolley
PTRL Laboratory
Avaya,  1300 West 120th Ave,   Area 33,  Westminster, CO, 80234


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Eric CHRISTISON
Sent: Monday, October 13, 2008 2:50 AM
To: [log in to unmask]
Subject: Re: [TN] Need soldering advice ASAP No II - tangential
question..

Interesting post Mike,

At the risk of going a little off topic I've never quite understood the 
distinction between a solder and a braze. Is there a clear cut 
difference in the metallurgy of the different joints?

Regards,




> The usual wisdom on soft solders is that they aren't very strong, so
the
> more ductile the alloy the less likely it is to break. This
conventional
> wisdom doesn't really apply to Au/Sn as it is more like a braze with
tensile
> and sheer about 8x 10x lead alloys.
>   

-- 
Eric Christison Msc
Mechanical Engineer
Consumer & Micro group
Imaging Division

STMicroelectronics (R&D) Ltd
33 Pinkhill
Edinburgh EH12 7BF
United Kingdom

Tel:	+44 (0)131 336 6165
Fax:	+ 44 (0)131 336 6001

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