Modern metalworking relies on the use of variety of machines. Heat can be used to soften or melt metal.Casting
involves melting and pouring into a mold.Extruding
requires the metal to be heated until soft and then forced through a shaped opening (die).Forging
may be done at various temperatures. The metal is forced (hammered, bent or stamped into shape
Caution, melted metals are very hot, often exceeding 1000 deg. centigrade.
Protective safety gear must be worn.