The development of metal and the art of forming metal have come a long way over the years. Prior to the discovery of metal, people used simple tools made out of bone and wood. Soon, however, fire was discovered and eventually ancient humans discovered that adding heat to certain rocks, more accurately described as ores, could free the metal from the rock. With the discovery of fire, eventually evolved the art of extracting and smelting metals, and forming them into usable objects. Such a practice is commonly referred to as metal working.
During early historical periods, precious metals had value attached to them. Metalworkers, therefore, used the metal to make religious artifacts, jewelry, keepsake items, tools for specific trades and weapons. Metals were formed by artisans, blacksmiths, atharvavedic practitioners, and alchemists. These metalworkers became increasingly important as time past and metal became more necessary.
Metalworkers were considered to be very valuable members of early societies. As more and more items and tools began to be made out of metals, more people were needed who were skilled in the craft of metal working. These so called metalsmiths were important for maintaining the economic stability of a civilization. Objects made out of metal were necessary for industry, farming, jewelry making and defense purposes. The necessity of metal items contributed to making the metalworker and invaluable member of society.
Today, the art of working with metal provides several occupations and trades. Many people specialize in forming and shaping metal. Techniques have definitely changed since ancient times and much of the forming of metal is done by machines. For example, the technique of roll forming is completed by using quality roll forming equipment. Roll forming is a technique used to bend a long strip of metal into a specified cross-section. A roll forming machine consists of several consecutive rolls that continuously bend the metal into shape. Each set of rolls, also known as strands, only bend a small part of the metal. The metal is past through the roll forming machine until it meets the specifications.