Weld two drill rods together

I need to weld to drill rods together .06" diameter, what is the best way to do this?

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drill rods will be hard and brittle if welded without extensive preheat and post weld heat treatment and its not practical for most applications.

is it possible to use a sleeve coupling and silver braze?

if this is a high volume job, then it is possible that a benchtop pulse yag laser welder might work.

it just depend on the application.

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