I suppose that re-machining only makes sense if you need to machine only few surfaces, e.g. the flanges of a complex pipe / manifold. I suppose that complex geo

I suppose that re-machining only makes sense if you need to machine only few surfaces, e.g. the flanges of a complex pipe / manifold. I suppose that complex geometries with thin walls is where metal 3D-printing mostly shines, because such things are rather hard to make in any other way. Also I think that if printing a whole blade + machining does not make sense (but can be a demo of sorts), printing only a small chipped / worn area onto an existing blade + machining it may make sense, if the bond is strong enough.