Metal sculptures are generally made of iron and steel. There are diverse techniques of cut used by the sculptor to give an excellent finish to the sculpture. We can mention techniques like:
Electrical weld: this technique allows to unite objects (formed previously) of diverse metals.
Emboss: this technique allows to give form to metal striking it. The metal can be cold or warm.
Autogenic welding: This technique is very similar to the technique used with the clay.
Forge: it consists of giving form to metal using fire and hammer.
Liquid Metal: responds to magnetism, created in the NASA. This technique is being also used in the medicine and in I the army. With this technique sculptors can made impressive and unusual sculptures.