Blacksmithing has a long tradition, and while different schools describe the "fundamentals" in slightly different ways, most boil down to the seven basic principles of blacksmithing. These aren’t just technical skills, but ways of thinking about how metal moves under the hammer:
Heat treatment techniques in blacksmithing.
The three fundamental heat treatment techniques in blacksmithing are used to alter a metal's properties, such as its strength and brittleness.
Throughout forging, blacksmiths use heat treatment techniques to strengthen material and make it easier to work with.
Annealing, hardening, and tempering are three essential heat treatment techniques used in blacksmithing.