noun
blacksmith's workshop; smithy; forge
Refers to the physical workshop where a blacksmith works, including the forge and tools. Foundry is a possible but less common translation; 鍛冶場 typically implies ironworking rather than casting.
村の鍛冶場では、今も刀を作っている。
At the village smithy, they still make swords.
鍛冶場からは、鉄を打つ音が聞こえてくる。
You can hear the sound of hammering iron coming from the forge.
工房 is a general term for a workshop or studio, not limited to metalworking.
鍛冶 (kaji, 'smithing') + 場 (ba, 'place'). The reading かじ is the native Japanese word for smithing, and ば is the rendaku form of 場.