Carbide tip/ insert brazing.

amron

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Hi, I would like to hear your advice regarding the right brazing rods to use to braze carbide tips to a holder.
 
 
A bronze brazing rod similar to Harris LFB (low fuming bronze),
or as @Nutfarmer suggested, Silver brazing rods.
Either will produce great results
 
The real stuff is a sandwich of thin copper with silver solder on both sides, this is how the manufacturers do it, when I worked for Kaiser steel, they made up brazed carbide tools with 1" shanks for facing and beveling the line pipe that they manufactured, the shanks were machined with a step, all the parts were degreased with trichloroethylene swabbed with flux and heated from the bottom with a torch with a pressure bar holding the carbide blank down, when the silver solidified they were put in a insulated box to cool. After I left, they got an induction heating setup, which was a much better way of doing the heating.
 
Similar to the way B&O did it.
Some where around here I have a square of the sheet. I don't know the exact composition.
That was thirty years or so ago.
They had retired employees working part time doing the work..
It was like a social outing to them...
..now I understand a little better.
Oh and the soldering too
 
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