Tungsten carbide drill teeth

Originally Posted by juanfrancisco

i have a few tons, of drill bits , with tungsten carbide inserts, i want to know the process to extract the inserts, would anyone help me with some information?

Basicly they are welded in using a high Silver content braizing metal.
You would have to heat the bit up to red hot heat & then tap the Carbide tips out. Thats about all there is to it, just gettem to a red hot heat using a forge or such & tap the teeth & they will fall right out.



Carbide is very very hard, but that makes it brittle. So if you go with a chisle & hammer, all it will do is snap parts of the carbide tip off.

http://www.scrapmetalforum.com/scrap...-tungsten.html

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