The forging process generally consists of the following procedures, namely, selecting high-quality steel billets for cutting, heating, forming, and cooling after forging. The forging process methods include free forging, die forging and membrane forging. During production, choose different forging methods according to the quality of forgings and the number of production batches.

Free forging has low productivity and large machining allowance, but the tools are simple and versatile, so it is widely used for forging single-piece and small-batch forgings with simpler shapes. Free forging equipment includes air hammer, steam-air hammer and hydraulic press, etc., which are respectively suitable for the production of small, medium and large forgings. Die forging has high productivity, simple operation, and easy realization of mechanization and automation. The die forgings have high dimensional accuracy, small machining allowances, and more reasonable fiber structure distribution of the forgings, which can further improve the service life of the parts.

The full name of die forging is model forging, which is formed by placing the heated blank in a forging die fixed on the die forging equipment.

In layman's terms, forged flanges are of better quality and are generally produced by die forging, with fine crystal structure and high strength, and of course the price is more expensive.

Both cast flanges and forged flanges are commonly used manufacturing methods for flanges, depending on the strength requirements of the parts to be used. If the requirements are not high, you can also use turned flanges.