[modeleng] Re: Work in progress

Be careful Harry, the heat from welding can change the characteristics of a 
silver soldered joint, remember, you are using a higher instant heat. I 
remember from somewhere in the dim and distant past that you should not 
expose silver solder to over heating, especially if it has already been 
soldered... Does that make sense? I will delve through my bits and pieces to 
see if I can find the info, might take a while, got to move the Santa trains 
operation on the SVR to Bewdley from Arley starting this weekend.

Dave.

----- Original Message ----- 
From: "Harry W. Wade" <hww@xxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Thursday, October 18, 2007 4:53 PM
Subject: [modeleng] Work in progress


It's been kind of quiet here lately and I've not done much of anything worth 
breaking the silence over, but some time ago I began the fabrication of the 
smokebox saddle for my 2X TICH which I am building up with cut and milled 
pieces of 1/4" steel plate.  I initially envisioned welding this assembly 
together but I am an aBYSmal welder so I caved in and decided to silver 
solder.  This went well enough but I have a final piece of plate to add 
which could not be added until some machine work and hand shaping was done 
on the basic assembly, after which more machining and hand shaping would be 
done.  This has raised a question.  If I want to add the final piece by 
welding (and I'm not certain I will weld it), will the weld "take" as it 
passes through the soldered areas or will it not adhere?  My guess is it 
will probably burn through as if it was a patch of oxide.
Cheers,
Harry wade
Nashville USA


Regards,
Harry Wade
Nashville Tennessee
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