Whether it be a forged grille, a wood plane's blade or the shears that cut the bristles of an artist's paintbrush; a blacksmith using hammer and anvil was their progenitor.
The German term kunstschmied combines art (kunst) and smith (schmied) into one word. In English when two words are united to create a new, more descriptive term, a hyphen unites what was two words into one. So it is with artist and blacksmith, tied by a hyphen into one concept; the artist-blacksmith.