Forging is a manufacturing process that involves shaping metal using localized compressive forces . Forging is often classified according to the temperature at which it is performed : " cold," " hot ," or write " hot " . Forgings may vary in weight from less than 580 metric tons kilogram . Forged parts usually require further processing to achieve a finished part. Forge as an art form began with the desire to produce decorative objects of precious metals. Today , wrought iron is a huge industry worldwide has significantly contributed to the development of mankind.
Forging is one of the oldest known metalworking procesos.Tradicionalmente , forging was carried out by a smith using hammer and anvil , although the introduction of water power for the production and working of iron in the century 12 drove the hammer and the anvil into obsolescence . The smithy or forge has evolved over centuries to become a center of engineering processes , production equipment, tools, raw materials and products to meet the demands of modern industry .
In modern times , industrial forging is done either with presses or with hammers powered by compressed air, electricity, hydraulics or steam. These hammers may have reciprocating weights in the thousands of pounds. Small power hammers, 230 kg or less reciprocating weight , and hydraulic presses are common in art smithies as well. Some steam hammers remain in use, but became obsolete with the availability of other sources of energy more convenient