Forging production is one of the main processing methods to provide the blank of mechanical parts in the machinery manufacturing industry.  Through forging, not only can get the shape of mechanical parts, but also can improve the internal structure of metal, improve the mechanical and physical properties of metal.  Generally, the important mechanical parts with high stress and high requirements are made by forging production method.  Such as turbine generator shaft, rotor, impeller, blade, protection ring, large hydraulic press column, high pressure cylinder, rolling mill roll, internal combustion engine crankshaft, connecting rod, gear, bearing, as well as national defense industry artillery and other important parts, are produced by forging.  

Therefore, forging production is widely used in metallurgy, mining, automobile, tractor, harvesting machinery, petroleum, chemical industry, aviation, aerospace, weapons and other industrial sectors, is in daily life, forging production also has an important position.  

In a sense, the annual output of forgings, the proportion of die forgings in the total output of forgings, the size and ownership of forging equipment and other indicators, to a certain extent, reflect the industrial level of a country