I was under the impression that bronze swords' lifespans were limited by the metal; they can't be sharpened, but would need to be re-cast. A replaceable handle probably wouldn't help much.
But other damage was limited. Bends and dents andd the like can only be repaired so often before the metal becomes brittle. Work Hardening is sort of the application of this process just to the surface/edge.
Am I wrong? Can you really not sharpen bronze?