Forged flange production process

Forged flange production process

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

Free forging has low productivity and large machining allowance, but the tool is simple and versatile, so it is widely used for forging single-piece and small-batch forgings with simple shapes. Free forging equipment includes air hammers, steam-air hammers, hydraulic press, etc., which are respectively suitable for the production of the small, medium, and large forgings. Die forging has high productivity, simple operation, and easy mechanization and automation. Die forgings have high dimensional accuracy, a small machining allowance, and more reasonable distribution of fiber structure, which can further improve the service life of parts. The basic process of free forging: During free forging, the shape of the forging is gradually forged from the blank through some basic deformation processes. The basic processes of free forging include upsetting, drawing, punching, bending, and cutting.

1. Upsetting Upsetting is an operation process in which the raw material is forged in the axial direction to reduce its height and increase its cross-section. This process is commonly used for forging gear blanks and other disc-shaped forgings. Upsetting is divided into two types: full upsetting and partial forging.
2. Elongation Elongation is a forging process that increases the length of the blank and reduces the cross-section. It is usually used to produce shaft blanks, such as lathe spindles, connecting rods, and the like.
3. Punching is a forging process in which a punch is used to punch through holes or non-through holes in the blank.
4. Bending A forging process in which the billet is bent into a certain angle or shape.
5. Twisting is a forging process in which one part of the blank is rotated by a certain angle relative to another part.
6. The forging process of cutting and dividing the blank or cutting off the head.