Do you smelt ore? [closed]

Looking at the examples in the Lexico entry for 'smelt' it is clear that 'smelt' is used for the process of extracting metal from ore using heat and that it is possible both to say that the ore is smelted and that the metal is smelted. However none of the examples suggests that the metal is 'smelted from' the ore. This accords with my own experience of the use of the word.

This fits with Dan Bron's explanation in his comment above where he compares the use of 'smelt' to the use of 'bake' in which one can both 'bake dough' to produce a cake and 'bake a cake'. In neither of those cases can you say that you have 'baked a cake from the dough'.