A metal forge is a device that uses heat and pressure to shape metal. The metal can be annealed, hardened, or worked into various shapes by the forge. The metal is heated to a high temperature in the forge and then forced under high pressure through an opening in the bottom of the furnace called a trough
The hottest point inside a forge is called the hot zone, which usually has temperatures ranging from 750~C to 850~C (1,400~F to 1,650~F). When you're working with metal at these temperatures, it's important to be careful not to get burned by molten metal as it flows out of the forge.
metal forge internal temperature