Welding Tungsten

Welding with induction heating?

I need to bond a piece of tungsten carbide with steel and wonder if induction heating a viable method for the sake of avoiding oxidation on the steel surface before welding happen. If so, how should I do it in the best way.

Do you need to weld or braze the pieces together? I’m aware of induction heating being used for brazing, but not as familiar with it’s use in welding (if it is even possible or practical).

From my experience, induction heating uses a magnetic field to induce localized electrical currents in conductors. The resulting currents produce heat which melts the braze material and flows into the joint. Sounds easy but there is a bit more to it than that.

Welding by comparison essentially melts a smaller area of two adjacent metals and blends them together as though they were one metal piece. I just don’t see induction heating being as practical in this application (welding) since the energy necessary would be very high compared to braze alloys. Keep in mind that the brazing alloy melted BEFORE the two metals being joined. Even in that situation induction heating can consume a fair amount of electrical energy.

The other problem would be the “mixing” of the molten substrate metals that is necessary in a welding operation.

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