You've hit on why the auto industry uses crimp also (probably because of cost 
as much as anything too). When a wire is soldered, a bit of the solder tins up 
the wire strands and vibration or flexing can quickly cause the wire to break 
and negate the reason we use stranded wire in the first place.

Sent from my iPad

On Jun 24, 2012, at 6:55 PM, "Hisashi T Fujinaka" <ht...@twofifty.com> wrote:

> What does the maritime industry use? Anyone work at Boeing who can tell
> me why they (I think) crimp instead of solder? I thought I remembered
> that it's because crimps are stronger over the long-term under
> vibration. I could be making it all up.
> 
> I'm just curious if there's a reason or if people are just talking for
> the sake of talking. I've had lots more solder joints fail than crimps,
> but I've had crimps fail too.
> 
> On Sun, 24 Jun 2012, Ron D'Eau Claire wrote:
> 
>> Does anyone have actual measurements to indicate that one is *significantly*
>> better than the other?
>> 
>> Solder may not be as good a conductor as copper, but we're talking about a
>> fraction of a millimeter of solder covering the entire mating surface of the
>> cable and connector through which the current flows.
>> 
>> IMX working on electronic systems we chose crimping over solder because
>> crimping is faster than soldering. Even so, I have found that it is as easy
>> to do a bad crimp job as it is to do a bad soldering job.
>> 
>> 73, Ron AC7AC
>> 
>> -----Original Message-----
>> 
>> A properly done crimp is better electrically than solder. For one thing,
>> solder is not a very good conductor. A proper crimp is actually a weld
>> joining the wire to the terminal.
>> 
>> Sent from my iPad
>> 
>> 
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> 
> -- 
> Hisashi T Fujinaka - ht...@twofifty.com
> BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte
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