Results and Conclusions:
Tests results show that carbide removal is possible. Initially, the part needs to be heated and held at temperature to allow the brazing alloy to drip out. It is important to fixture the part with carbides facing down. An external shock is needed afterwards to shift the carbides out enough to allow them to be grabbed with a set of pliers. Caution: when pulling out the carbides, hot molten brazing alloy can flow out of the holes for the carbides when they are pulled out.