The production process of forged flange is mainly divided into forging and casting.
Cast and forged flanges
The shape and size of the casting blank are accurate, the machining amount is small and the cost is low, but there are casting defects (porosity, crack and inclusion); the internal structure streamline of the casting is poor (if it is a cutting part, the streamline is worse);
Forged flange is generally lower carbon content than cast flange and is not easy to rust. The forging has good streamline, compact structure and better mechanical properties than cast flange;
If the forging process is not proper, there will be large or uneven grains, hardening cracks, and the forging cost is higher than that of casting flange.
Forgings can bear higher shear force and tensile force than castings.
The advantages of the casting are that it can make a more complex shape and the cost is relatively low;
The forging has the advantages of uniform internal structure and no harmful defects such as pores and inclusions in the casting;
The difference between casting flange and forging flange is different from the production process. For example, centrifugal flange is one of the casting flange.
Centrifugal flange is a kind of flange produced by precision casting. Compared with ordinary sand casting, the structure of centrifugal flange is much finer and its quality is improved. It is not easy to have loose structure, porosity, sand hole and other problems.